HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from San Francisco (SFO) to Ontario from $64

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SFO — YYZ
May 14 — May 211
From?
To?
Tue 5/14
Tue 5/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

How far in advance should I book a flight from San Francisco to Region of Ontario?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 56 days in advance, which can save you up to 61% on flights from San Francisco to Region of Ontario compared to booking the week you need them. Waiting 56 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $518. For sooner than that we have options available in the next 3 days from $801.

What is the cheapest month to fly from San Francisco to Region of Ontario?

February is one of the best times of the year to fly to Region of Ontario from San Francisco. Prices for February average $488 per person but you can even find prices for as low as $173. The most expensive prices can be found in the month of December. Opting for a February flight can save you 34% on your journey compared to booking in December

When is the cheapest time to fly from San Francisco to Region of Ontario (SFO - ON)?

When flying from San Francisco to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap United Airlines flights from San Francisco to Ontario

Explore cheap flight options specifically provided by United Airlines for the route between San Francisco and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,717,708 searches. Data last updated May 9, 2024.
Check out some of the cheapest United Airlines flights we've come across from San Francisco to Ontario. It's recommended that users confirm their flight details before booking.
Sun 5/264:35 pmSFO - YYZ
Nonstop5h 07mUnited Airlines
Sun 6/28:45 pmYYZ - SFO
Nonstop5h 37mUnited Airlines
Deal found 5/8$441
Wed 5/1510:47 pmSFO - YYZ
Nonstop5h 08mUnited Airlines
Wed 6/58:45 pmYYZ - SFO
Nonstop5h 37mUnited Airlines
Deal found 5/8$509
Tue 5/1410:56 pmSFO - YYZ
1 stop15h 40mUnited Airlines
Tue 5/286:30 amYYZ - SFO
Nonstop5h 35mUnited Airlines
Deal found 5/8$519
Sat 5/1812:09 amSFO - YYZ
1 stop6h 49mUnited Airlines
Tue 5/286:00 pmYYZ - SFO
1 stop9h 51mUnited Airlines
Deal found 5/8$536
Tue 5/1412:09 amSFO - YYZ
1 stop6h 49mUnited Airlines
Wed 6/58:45 pmYYZ - SFO
Nonstop5h 37mUnited Airlines
Deal found 5/8$537
Sun 6/231:10 amSFO - YOW
1 stop17h 38mUnited Airlines
Sat 6/295:30 pmYOW - SFO
1 stop18h 15mUnited Airlines
Deal found 5/8$550

Cheap Porter Airlines flights from San Francisco to Ontario

Explore cheap flight options specifically provided by Porter Airlines for the route between San Francisco and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,717,708 searches. Data last updated May 9, 2024.
Take a gander at the lowest prices we've found on Porter Airlines flights from San Francisco to Ontario. Deals frequently update to provide users with more options.
Thu 7/41:55 pmSFO - YYZ
Nonstop5h 05mPorter Airlines
Fri 7/1210:30 amYYZ - SFO
Nonstop5h 35mPorter Airlines
Deal found 5/9$389
Sun 5/191:53 pmSFO - YYZ
Nonstop5h 07mPorter Airlines
Thu 5/2310:15 amYYZ - SFO
Nonstop5h 37mPorter Airlines
Deal found 5/8$398
Sun 5/191:53 pmSFO - YYZ
Nonstop5h 07mPorter Airlines
Sun 5/2610:15 amYYZ - SFO
Nonstop5h 37mPorter Airlines
Deal found 5/8$399
Mon 5/201:53 pmSFO - YYZ
Nonstop5h 07mPorter Airlines
Sun 5/2610:15 amYYZ - SFO
Nonstop5h 37mPorter Airlines
Deal found 5/8$403
Fri 5/171:53 pmSFO - YYZ
Nonstop5h 07mPorter Airlines
Sat 5/2510:15 amYYZ - SFO
Nonstop5h 37mPorter Airlines
Deal found 5/8$404
Sun 5/191:53 pmSFO - YYZ
Nonstop5h 07mPorter Airlines
Fri 5/2410:15 amYYZ - SFO
Nonstop5h 37mPorter Airlines
Deal found 5/8$409
Wed 7/36:15 amSFO - YYZ
1 stop9h 21mPorter Airlines
Wed 7/1010:30 amYYZ - SFO
Nonstop5h 35mPorter Airlines
Deal found 5/8$410
Wed 5/291:53 pmSFO - YOW
1 stop7h 35mPorter Airlines
Wed 6/57:20 amYOW - SFO
1 stop8h 32mPorter Airlines
Deal found 5/8$411
Sat 5/181:53 pmSFO - YYZ
Nonstop5h 07mPorter Airlines
Sun 5/2610:15 amYYZ - SFO
Nonstop5h 37mPorter Airlines
Deal found 5/8$414

Cheap San Francisco to Ontario flights in May & June 2024

Find cheap flight options from San Francisco to Ontario specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,717,708 searches. Prices were last updated on May 9, 2024.
Scroll through some of the best deals on flights from San Francisco to Ontario in 2024. Check back soon for alternative fares.
Tue 6/1112:22 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Thu 6/138:20 pmYYZ - SFO
1 stop31h 21mMultiple Airlines
Deal found 5/9$248
Thu 6/610:17 amSFO - YYZ
1 stop17h 18mMultiple Airlines
Tue 6/118:00 pmYYZ - SFO
1 stop19h 37mMultiple Airlines
Deal found 5/8$256
Sat 6/16:34 pmSFO - YYZ
1 stop9h 01mMultiple Airlines
Tue 6/48:00 pmYYZ - SFO
1 stop29h 06mMultiple Airlines
Deal found 5/8$262
Wed 6/512:07 pmSFO - YYZ
1 stop15h 35mMultiple Airlines
Thu 6/138:20 pmYYZ - SFO
1 stop31h 21mMultiple Airlines
Deal found 5/8$265
Tue 6/1812:22 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Wed 6/191:25 pmYYZ - SFO
1 stop14h 15mMultiple Airlines
Deal found 5/8$268
Thu 6/612:22 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Tue 6/118:00 pmYYZ - SFO
1 stop19h 37mMultiple Airlines
Deal found 5/9$270
Tue 5/286:33 pmSFO - YYZ
1 stop9h 09mMultiple Airlines
Tue 6/48:00 pmYYZ - SFO
1 stop29h 06mMultiple Airlines
Deal found 5/8$272
Tue 6/1112:22 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Wed 6/128:00 pmYYZ - SFO
1 stop29h 01mMultiple Airlines
Deal found 5/9$274
Thu 6/610:17 amSFO - YYZ
1 stop17h 18mMultiple Airlines
Sun 6/98:20 pmYYZ - SFO
1 stop31h 24mMultiple Airlines
Deal found 5/8$275

San Francisco to Ontario 2024 flight deals

Discover exclusive flight deals for travel between San Francisco and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,717,708 searches. Data last updated May 9, 2024.
Scroll through some of the best deals on flights from San Francisco to Ontario in 2024. Check back soon for alternative fares.
Tue 6/1112:22 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Thu 6/138:20 pmYYZ - SFO
1 stop31h 21mMultiple Airlines
Deal found 5/9$248
Thu 6/610:17 amSFO - YYZ
1 stop17h 18mMultiple Airlines
Tue 6/118:00 pmYYZ - SFO
1 stop19h 37mMultiple Airlines
Deal found 5/8$256
Tue 9/176:18 pmSFO - YYZ
1 stop9h 17mMultiple Airlines
Fri 9/203:45 pmYYZ - SFO
2 stops12h 14mMultiple Airlines
Deal found 5/7$257
Wed 9/116:18 pmSFO - YYZ
1 stop9h 25mMultiple Airlines
Tue 9/178:20 pmYYZ - SFO
1 stop18h 55mMultiple Airlines
Deal found 5/7$258
Tue 9/176:18 pmSFO - YYZ
1 stop9h 17mMultiple Airlines
Fri 9/201:30 pmYYZ - SFO
1 stop11h 08mMultiple Airlines
Deal found 5/7$259
Sat 6/16:34 pmSFO - YYZ
1 stop9h 01mMultiple Airlines
Tue 6/48:00 pmYYZ - SFO
1 stop29h 06mMultiple Airlines
Deal found 5/8$262
Wed 6/512:07 pmSFO - YYZ
1 stop15h 35mMultiple Airlines
Thu 6/138:20 pmYYZ - SFO
1 stop31h 21mMultiple Airlines
Deal found 5/8$265
Tue 6/1812:22 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Wed 6/191:25 pmYYZ - SFO
1 stop14h 15mMultiple Airlines
Deal found 5/8$268
Thu 6/612:22 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Tue 6/118:00 pmYYZ - SFO
1 stop19h 37mMultiple Airlines
Deal found 5/9$270

Non-stop flights to Ontario from San Francisco

Discover non-stop flight options from San Francisco to Ontario. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,717,708 searches. Data last updated May 9, 2024.
For a quicker trip, book one of these direct flights from San Francisco to Ontario. Users seeking other options on flights from San Francisco to Ontario should update the search form at the top of the page.
Fri 7/121:55 pmSFO - YYZ
Nonstop5h 05mPorter Airlines
Fri 7/1910:30 amYYZ - SFO
Nonstop5h 35mPorter Airlines
Deal found 5/8$375
Mon 7/151:55 pmSFO - YYZ
Nonstop5h 05mPorter Airlines
Fri 8/910:30 amYYZ - SFO
Nonstop5h 35mPorter Airlines
Deal found 5/8$376
Fri 7/51:55 pmSFO - YYZ
Nonstop5h 05mPorter Airlines
Mon 7/1510:30 amYYZ - SFO
Nonstop5h 35mPorter Airlines
Deal found 5/8$381
Thu 7/41:55 pmSFO - YYZ
Nonstop5h 05mPorter Airlines
Fri 7/1210:30 amYYZ - SFO
Nonstop5h 35mPorter Airlines
Deal found 5/9$389
Thu 7/41:55 pmSFO - YYZ
Nonstop5h 05mPorter Airlines
Wed 7/1010:30 amYYZ - SFO
Nonstop5h 35mPorter Airlines
Deal found 5/8$390
Tue 7/91:55 pmSFO - YYZ
Nonstop5h 05mPorter Airlines
Fri 7/1210:30 amYYZ - SFO
Nonstop5h 35mPorter Airlines
Deal found 5/9$391
Fri 8/91:55 pmSFO - YYZ
Nonstop5h 05mPorter Airlines
Sat 8/2410:30 amYYZ - SFO
Nonstop5h 35mPorter Airlines
Deal found 5/9$393
Thu 7/41:55 pmSFO - YYZ
Nonstop5h 05mPorter Airlines
Wed 8/710:30 amYYZ - SFO
Nonstop5h 35mPorter Airlines
Deal found 5/8$395
Wed 7/31:55 pmSFO - YYZ
Nonstop5h 05mPorter Airlines
Wed 8/710:30 amYYZ - SFO
Nonstop5h 35mPorter Airlines
Deal found 5/8$397

San Francisco to Ontario flights leaving soon

Find last-minute flight options from San Francisco to Ontario for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,717,708 searches. Data last updated May 9, 2024.
Have a look at some of the flights available from San Francisco to Ontario departing last-minute. It's wise to confirm all flight details are correct before booking.
Tue 5/149:25 pmSFO - YYZ
1 stop30h 17mMultiple Airlines
Tue 5/218:00 pmYYZ - SFO
1 stop19h 41mMultiple Airlines
Deal found 5/8$287
Tue 5/141:53 pmSFO - YYZ
Nonstop5h 07mMultiple Airlines
Tue 5/218:00 pmYYZ - SFO
1 stop19h 41mMultiple Airlines
Deal found 5/8$294
Sun 5/191:53 pmSFO - YYZ
Nonstop5h 07mMultiple Airlines
Tue 5/288:20 pmYYZ - SFO
1 stop28h 47mMultiple Airlines
Deal found 5/8$303
Fri 5/171:53 pmSFO - YYZ
Nonstop5h 07mMultiple Airlines
Tue 5/288:20 pmYYZ - SFO
1 stop28h 47mMultiple Airlines
Deal found 5/8$308
Thu 5/161:53 pmSFO - YYZ
Nonstop5h 07mMultiple Airlines
Tue 5/218:00 pmYYZ - SFO
1 stop19h 41mMultiple Airlines
Deal found 5/7$313
Sat 5/181:53 pmSFO - YYZ
Nonstop5h 07mMultiple Airlines
Tue 5/288:20 pmYYZ - SFO
1 stop28h 47mMultiple Airlines
Deal found 5/8$319
Tue 5/141:53 pmSFO - YYZ
Nonstop5h 07mMultiple Airlines
Mon 5/208:00 pmYYZ - SFO
1 stop31h 41mMultiple Airlines
Deal found 5/8$325
Wed 5/156:19 pmSFO - YYZ
1 stop9h 23mMultiple Airlines
Mon 5/208:00 pmYYZ - SFO
1 stop31h 41mMultiple Airlines
Deal found 5/8$327
Thu 5/161:53 pmSFO - YYZ
Nonstop5h 07mMultiple Airlines
Thu 5/238:20 pmYYZ - SFO
1 stop31h 21mMultiple Airlines
Deal found 5/8$329

One-way flights to Ontario from San Francisco

Search for one-way flight options from San Francisco to Ontario. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,717,708 searches. Data last updated May 9, 2024.
Take a look at some of the best available options we've come across on one-way flights from San Francisco to Ontario. Those needing a return flight from San Francisco to Ontario can use the search form above.
Tue 6/1812:22 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Deal found 5/9$64
Tue 6/1112:22 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Deal found 5/7$80
Tue 6/412:07 pmSFO - YYZ
1 stop15h 28mMultiple Airlines
Deal found 5/8$92
Tue 6/410:07 amSFO - YYZ
1 stop17h 28mMultiple Airlines
Deal found 5/8$93
Wed 6/512:07 pmSFO - YYZ
1 stop15h 35mMultiple Airlines
Deal found 5/8$96
Wed 6/1210:07 amSFO - YYZ
1 stop17h 35mMultiple Airlines
Deal found 5/8$110
Thu 6/2012:22 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Deal found 5/9$115
Thu 6/610:17 amSFO - YYZ
1 stop17h 18mMultiple Airlines
Deal found 5/8$120
Wed 8/2810:02 amSFO - YYZ
1 stop9h 43mMultiple Airlines
Deal found 5/9$121

Find flights from San Francisco to Ontario within your budget

Customize your flight search to find flights from San Francisco to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,717,708 searches. Data last updated May 9, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$248 - $446

Route

Depart

Return

Price

San FranciscoToronto Pearson Intl

SFO - YYZ

SFOYYZ

San Francisco

Tue 6/11

1 stop15h 13m

Toronto Pearson Intl

Thu 6/13

1 stop31h 21m

$248

San FranciscoToronto Pearson Intl

SFO - YYZ

SFOYYZ

San Francisco

Thu 6/6

1 stop17h 18m

Toronto Pearson Intl

Tue 6/11

1 stop19h 37m

$256

San FranciscoToronto Pearson Intl

SFO - YYZ

SFOYYZ

San Francisco

Sat 6/1

1 stop9h 01m

Toronto Pearson Intl

Tue 6/4

1 stop29h 06m

$262

San FranciscoToronto Kitchener-Waterloo

SFO - YKF

SFOYKF

San Francisco

Thu 5/30

1 stop17h 45m

Toronto Kitchener-Waterloo

Sun 6/2

1 stop15h 55m

$313

San FranciscoToronto Pearson Intl

SFO - YYZ

SFOYYZ

San Francisco

Thu 7/4

Nonstop5h 05m

Toronto Pearson Intl

Fri 7/12

Nonstop5h 35m

$389

San FranciscoToronto Kitchener-Waterloo

SFO - YKF

SFOYKF

San Francisco

Fri 8/16

1 stop9h 02m

Toronto Kitchener-Waterloo

Mon 8/19

1 stop8h 45m

$391

San FranciscoToronto Pearson Intl

SFO - YYZ

SFOYYZ

San Francisco

Wed 6/19

1 stop20h 47m

Toronto Pearson Intl

Sun 6/23

1 stop27h 41m

$430

San FranciscoToronto Pearson Intl

SFO - YYZ

SFOYYZ

San Francisco

Sun 5/26

Nonstop5h 07m

Toronto Pearson Intl

Sun 6/2

Nonstop5h 37m

$441

San FranciscoToronto Island

SFO - YTZ

SFOYTZ

San Francisco

Mon 6/10

1 stop10h 19m

Toronto Island

Sat 6/15

1 stop10h 57m

$446

Flights are sorted by cheapest first

Deals found on 5/9

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated May 9, 2024.
Peruse reviews from past customers who have flown with United Airlines, Porter Airlines and WestJet from San Francisco to Ontario to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,142 reviews
Check prices

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Food

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Alaska Airlines
8.1
Very good
9,142 reviews
Alaska Airlines
8.1
Very good
9,142 reviews
Check prices

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Food

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Delta
8.0
Very good
10,778 reviews
Alaska Airlines
8.1
Very good
9,142 reviews
Check prices

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Food

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

WestJet
7.6
Good
2,942 reviews
Alaska Airlines
8.1
Very good
9,142 reviews
Check prices

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Food

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Porter Airlines
7.4
Good
423 reviews
Alaska Airlines
8.1
Very good
9,142 reviews
Check prices

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Food

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

United Airlines
7.4
Good
11,027 reviews
Alaska Airlines
8.1
Very good
9,142 reviews
Check prices

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Food

7.3

Crew

8.6

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from San Francisco to Ontario?

    Most people fly from San Francisco (SFO) if they book a flight from San Francisco to Ontario. San Francisco is conveniently located just 11.8 mi from San Francisco’s city center.

  • Can I find flights from San Francisco to Region of Ontario for under $300 on Cheapflights?

    Yes, there are multiple flights from San Francisco to Region of Ontario for under $300. The cheapest flight booked recently is on Multiple Airlines for just $248, but on average you can expect to pay $279.

  • Are there nonstop flights from San Francisco to Region of Ontario for under $400 on Cheapflights?

    Cheapflights has at least 20 direct flights from San Francisco to Region of Ontario under $400. A good price for a nonstop flight from San Francisco to Region of Ontario is less than $396.

  • Are there last-minute flights available from San Francisco to Region of Ontario for under $300?

    There are currently 20+ open flights from San Francisco to Region of Ontario within the next 7 days for less than $300.

  • What are the most popular routes from San Francisco to Region of Ontario?

    Most travelers choose San Francisco - Toronto Pearson Intl, San Francisco - Toronto Island or San Francisco - Toronto Kitchener-Waterloo when deciding on the best route from San Francisco to Region of Ontario.

  • What are the most popular airlines that fly from San Francisco to Region of Ontario?

    Before booking your flight from San Francisco to Region of Ontario check out the most popular airlines for this route: American Airlines, Air Canada or Alaska Airlines.

  • What are the most reliable airlines from San Francisco to Region of Ontario?

    Before booking your flight to Region of Ontario from San Francisco, check out the most reliable airlines to get you to your destination on time: Austrian Airlines (90%), Turkish Airlines (89%), Singapore Airlines( 87%).

  • What are the cheapest flights from San Francisco to Region of Ontario?

    Looking for the cheapest flight from San Francisco to Region of Ontario? While on average our users pay $1,213, our data indicates the cheapest price to be $194. The most popular route (San Francisco - Toronto Pearson Intl), is priced around $211.

  • What does SFO to YYZ mean?

    This is defined as San Francisco Airport (SFO) and Toronto Pearson Intl Airport (YYZ). Codes like Toronto Pearson Intl Airport are often used to just call airports uniquely. Ottawa Airport (YOW), Toronto Island Airport (YTZ), Hamilton Airport (YHM), London Airport (YXU), Toronto Kitchener-Waterloo Airport (YKF) are some additional IATA codes for airports related to your trip.

  • Can I find deals for flights from San Francisco to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your San Francisco to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from San Francisco to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter San Francisco to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from San Francisco to Ontario that include hotel bookings?

    Yes. In addition to deals on San Francisco to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Ontario.

  • Can I find deals for business class flights from San Francisco to Ontario?

    Yes. Cheapflights offers flight deals from San Francisco to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from San Francisco to Ontario that allow pets onboard?

    Many airlines flying from San Francisco to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from San Francisco to Ontario?

    Yes, you can often find last-minute deals on San Francisco to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the San Francisco to Region of Ontario flight deals updated?

    The San Francisco to Region of Ontario flight deals you see on this page were last updated on 5/9.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Francisco to Ontario
See prices for flight routes from nearby airports that may be better suited for you.

San Francisco to Vancouver Intl flights
Los Angeles to Pearson Intl flights
Los Angeles to Vancouver Intl flights
San Francisco to Pearson Intl flights
San Francisco to Calgary flights
Los Angeles to Calgary flights
San Diego to Vancouver Intl flights
Santa Ana to Vancouver Intl flights
Los Angeles to Abbotsford flights
San Francisco to Abbotsford flights
Ontario to Vancouver Intl flights
San Francisco to Pierre Elliott Trudeau Intl flights
Los Angeles to Toronto Island flights
Los Angeles to Pierre Elliott Trudeau Intl flights
Ontario to Pearson Intl flights
Sacramento to Vancouver Intl flights
Los Angeles to Kitchener-Waterloo flights
Los Angeles to Edmonton flights
Oakland to Pearson Intl flights
San Francisco to Kitchener-Waterloo flights
San Francisco to Toronto Island flights
San Diego to Calgary flights
San Diego to Pearson Intl flights
San Jose to Vancouver Intl flights
San Francisco to Edmonton flights
Ontario to Calgary flights
Oakland to Vancouver Intl flights
San Francisco to Hamilton flights
San Jose to Pearson Intl flights
Santa Ana to Calgary flights
San Diego to Abbotsford flights
Los Angeles to Hamilton flights
Ontario to Pierre Elliott Trudeau Intl flights
Burbank to Vancouver Intl flights
Sacramento to Pearson Intl flights
San Jose to Calgary flights
Los Angeles to Winnipeg flights
San Diego to Pierre Elliott Trudeau Intl flights
San Jose to Pierre Elliott Trudeau Intl flights
San Francisco to Victoria flights
Palm Springs to Vancouver Intl flights
Santa Ana to Pierre Elliott Trudeau Intl flights
Los Angeles to Victoria flights
San Francisco to Ottawa flights
Santa Ana to Pearson Intl flights
Oakland to Calgary flights
Los Angeles to Ottawa flights
Burbank to Pearson Intl flights
San Francisco to Québec City flights
San Diego to Toronto Island flights

Top 10 airlines flying from San Francisco to Ontario

Discover the top 10 airlines that operate flights from San Francisco to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,717,708 searches. Data last updated May 9, 2024.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$165Average$457FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Lynx AirCheapest$192Average$236FlexibilityNo cancel feeOn-timeN/A
Search Lynx Air flights
Air CanadaCheapest$204Average$588FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest$228Average$311FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$229Average$622FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$234Average$485FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Alaska AirlinesCheapest$236Average$467FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Flair AirlinesCheapest$313Average$537FlexibilityNo cancel feeOn-timeN/A
Search Flair Airlines flights
WestJetCheapest$328Average$502FlexibilityNo cancel feeOn-time60%
Search WestJet flights
LufthansaCheapest$427Average$582FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Los Angeles to San Francisco flights
Los Angeles to Sacramento flights
Atlanta to Seattle flights
New York to Shanghai flights
California to Florida flights
Dallas to Charlotte flights
St. Louis to Las Vegas flights
Orlando to Las Vegas flights
Los Angeles to Barcelona flights
Newark Airport to Orlando flights
Los Angeles to Phoenix flights
San Francisco to Cap Haitien flights

Search flights from San Francisco to Ontario by cabin class

Find flights from San Francisco to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Hourly flight availability from San Francisco to Ontario

Find hourly flight availability from San Francisco to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 9, 2024.
21%of flight departuresEarly morningMidnight to 6 am
36%of flight departuresMorning6 am to noon
28%of flight departuresAfternoonNoon to 6 pm
15%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Ordu/Giresun
Flights to Hakodate
Flights to Gazipasa
Flights to Kirkwall Arpt
Flights to Skiathos
Flights to Bourgas
Flights to Kalamata
Flights to Menorca/Mahon
Flights to Mytilene
Flights to Mason City
Flights to Pau Pyrénées
Flights to Neiva La Marguita
Flights to Cortez Montezuma County
Flights to Biarritz Parme
Flights to Parikia Paros
Flights to Ohrid
Flights to Edremit/Korfez
Flights to Naxos
Flights to Dalaman
Flights to Lublin
Flights to Miyakojima Hirara
Flights to Champaign University-Willard
Flights to Kagoshima
Flights to Constanţa Mihail Kogalniceanu

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from San Francisco to Ontario?

When you search for this flight from San Francisco to Ontario, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from San Francisco to Ontario?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from San Francisco to Ontario for you. Better yet — we are completely free to use.

Can Cheapflights find flights from San Francisco to Ontario with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from San Francisco to Ontario, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from San Francisco to Ontario become cheaper?

Yes, Cheapflights offers price alerts on San Francisco to Ontario flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines