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Cheap flights from San Francisco (SFO) to Ontario from $80

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 6/11. 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 13 — May 201
From?
To?
Mon 5/13
Mon 5/20
1 adult, Economy
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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 WestJet flights from San Francisco to Ontario

Explore cheap flight options specifically provided by WestJet 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 2,752,338 searches. Data last updated May 8, 2024.
Check out some of the cheapest WestJet flights we've come across from San Francisco to Ontario. It's recommended that users confirm their flight details before booking.
Mon 7/223:20 pmSFO - YYZ
2 stops12h 25mWestJet
Wed 7/316:30 amYYZ - SFO
2 stops11h 03mWestJet
Deal found 5/6$383
Mon 7/226:05 pmSFO - YYZ
1 stop9h 40mWestJet
Thu 8/18:00 amYYZ - SFO
1 stop8h 32mWestJet
Deal found 5/6$385
Mon 8/512:50 pmSFO - YKF
1 stop9h 02mWestJet
Tue 8/206:15 amYKF - SFO
1 stop8h 45mWestJet
Deal found 5/7$392
Tue 9/1712:50 pmSFO - YKF
1 stop9h 08mWestJet
Fri 9/206:15 amYKF - SFO
2 stops11h 18mWestJet
Deal found 5/7$394
Fri 9/612:50 pmSFO - YYZ
1 stop8h 26mWestJet
Sun 9/153:45 pmYYZ - SFO
1 stop8h 31mWestJet
Deal found 5/6$402
Fri 8/1612:50 pmSFO - YHM
1 stop8h 25mWestJet
Mon 8/196:00 amYHM - SFO
1 stop9h 00mWestJet
Deal found 5/8$404
Wed 9/1112:50 pmSFO - YHM
1 stop8h 25mWestJet
Tue 9/176:00 amYHM - SFO
1 stop9h 01mWestJet
Deal found 5/7$405
Tue 5/143:20 pmSFO - YHM
2 stops22h 55mWestJet
Sun 5/196:05 pmYHM - SFO
2 stops23h 29mWestJet
Deal found 5/8$606
Mon 5/1312:50 pmSFO - YKF
1 stop25h 41mWestJet
Wed 5/296:15 amYKF - SFO
2 stops11h 19mWestJet
Deal found 5/7$716

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 2,752,338 searches. Data last updated May 8, 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.
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
Fri 5/171:53 pmSFO - YYZ
Nonstop5h 07mPorter Airlines
Wed 5/2210:15 amYYZ - SFO
Nonstop5h 37mPorter Airlines
Deal found 5/7$411
Tue 5/141:53 pmSFO - YYZ
Nonstop5h 07mPorter Airlines
Tue 5/2110:15 amYYZ - SFO
Nonstop5h 37mPorter Airlines
Deal found 5/7$414
Sat 5/181:53 pmSFO - YYZ
Nonstop5h 07mPorter Airlines
Tue 5/2810:15 amYYZ - SFO
Nonstop5h 37mPorter Airlines
Deal found 5/8$416
Tue 5/141:53 pmSFO - YYZ
Nonstop5h 07mPorter Airlines
Mon 5/2010:15 amYYZ - SFO
Nonstop5h 37mPorter Airlines
Deal found 5/8$420
Tue 5/141:53 pmSFO - YYZ
Nonstop5h 07mPorter Airlines
Thu 5/2310:15 amYYZ - SFO
Nonstop5h 37mPorter Airlines
Deal found 5/7$423
Fri 5/171:53 pmSFO - YYZ
Nonstop5h 07mPorter Airlines
Mon 5/2010:15 amYYZ - SFO
Nonstop5h 37mPorter Airlines
Deal found 5/8$427

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 2,752,338 searches. Prices were last updated on May 8, 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
Wed 6/199:35 amYYZ - SFO
1 stop18h 05mMultiple Airlines
Deal found 5/6$235
Tue 6/1112:22 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Tue 6/182:00 pmYYZ - SFO
2 stops13h 44mMultiple Airlines
Deal found 5/7$236
Wed 6/127:04 pmSFO - YYZ
1 stop8h 38mMultiple Airlines
Tue 6/189:35 amYYZ - SFO
1 stop18h 09mMultiple Airlines
Deal found 5/7$241
Sat 6/16:34 pmSFO - YYZ
1 stop9h 01mMultiple Airlines
Tue 6/189:35 amYYZ - SFO
1 stop18h 09mMultiple Airlines
Deal found 5/6$243
Tue 6/1812:22 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Tue 6/251:25 pmYYZ - SFO
1 stop14h 19mMultiple Airlines
Deal found 5/7$244
Tue 6/1112:22 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Wed 7/173:45 pmYYZ - SFO
2 stops12h 14mMultiple Airlines
Deal found 5/6$246
Tue 6/1112:22 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Wed 6/199:35 amYYZ - SFO
1 stop18h 05mMultiple Airlines
Deal found 5/7$249
Tue 6/412:07 pmSFO - YYZ
1 stop15h 28mMultiple Airlines
Sun 6/98:20 pmYYZ - SFO
1 stop31h 24mMultiple Airlines
Deal found 5/7$250
Tue 6/1812:22 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Mon 7/18:00 pmYYZ - SFO
1 stop23h 28mMultiple Airlines
Deal found 5/7$252

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 2,752,338 searches. Data last updated May 8, 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
Tue 6/189:35 amYYZ - SFO
1 stop18h 09mMultiple Airlines
Deal found 5/7$194
Tue 6/1110:38 amSFO - YYZ
1 stop16h 57mMultiple Airlines
Tue 6/1812:20 pmYYZ - SFO
1 stop15h 24mMultiple Airlines
Deal found 5/7$216
Tue 6/1112:22 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Tue 7/168:00 pmYYZ - SFO
1 stop29h 14mMultiple Airlines
Deal found 5/6$225
Tue 6/1112:22 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Wed 6/199:35 amYYZ - SFO
1 stop18h 05mMultiple Airlines
Deal found 5/6$235
Tue 6/1112:22 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Tue 6/182:00 pmYYZ - SFO
2 stops13h 44mMultiple Airlines
Deal found 5/7$236
Wed 6/127:04 pmSFO - YYZ
1 stop8h 38mMultiple Airlines
Tue 6/189:35 amYYZ - SFO
1 stop18h 09mMultiple Airlines
Deal found 5/7$241
Sat 6/16:34 pmSFO - YYZ
1 stop9h 01mMultiple Airlines
Tue 6/189:35 amYYZ - SFO
1 stop18h 09mMultiple Airlines
Deal found 5/6$243
Tue 6/1812:22 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Tue 6/251:25 pmYYZ - SFO
1 stop14h 19mMultiple Airlines
Deal found 5/7$244
Tue 6/1112:22 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Wed 7/173:45 pmYYZ - SFO
2 stops12h 14mMultiple Airlines
Deal found 5/6$246

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 2,752,338 searches. Data last updated May 8, 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.
Tue 7/161:55 pmSFO - YYZ
Nonstop5h 05mPorter Airlines
Tue 7/2310:30 amYYZ - SFO
Nonstop5h 35mPorter Airlines
Deal found 5/8$375
Sun 7/281:55 pmSFO - YYZ
Nonstop5h 05mPorter Airlines
Tue 8/1310:30 amYYZ - SFO
Nonstop5h 35mPorter Airlines
Deal found 5/7$376
Fri 7/51:55 pmSFO - YYZ
Nonstop5h 05mPorter Airlines
Mon 7/1510:30 amYYZ - SFO
Nonstop5h 35mPorter Airlines
Deal found 5/8$381
Wed 7/171:55 pmSFO - YYZ
Nonstop5h 05mPorter Airlines
Wed 8/1410:30 amYYZ - SFO
Nonstop5h 35mPorter Airlines
Deal found 5/7$384
Thu 9/51:55 pmSFO - YYZ
Nonstop5h 05mPorter Airlines
Thu 9/1210:30 amYYZ - SFO
Nonstop5h 35mPorter Airlines
Deal found 5/7$388
Fri 9/61:55 pmSFO - YYZ
Nonstop5h 05mPorter Airlines
Sun 9/1510:30 amYYZ - SFO
Nonstop5h 35mPorter Airlines
Deal found 5/6$390
Tue 7/91:55 pmSFO - YYZ
Nonstop5h 05mPorter Airlines
Sat 7/1310:30 amYYZ - SFO
Nonstop5h 35mPorter Airlines
Deal found 5/7$391
Mon 9/161:55 pmSFO - YYZ
Nonstop5h 05mPorter Airlines
Thu 9/2610:30 amYYZ - SFO
Nonstop5h 35mPorter Airlines
Deal found 5/7$393
Thu 7/41:55 pmSFO - YYZ
Nonstop5h 05mPorter Airlines
Wed 8/710:30 amYYZ - SFO
Nonstop5h 35mPorter Airlines
Deal found 5/8$395

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 2,752,338 searches. Data last updated May 8, 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.
Fri 5/171:53 pmSFO - YYZ
Nonstop5h 07mMultiple Airlines
Tue 5/288:20 pmYYZ - SFO
1 stop28h 47mMultiple Airlines
Deal found 5/8$308
Mon 5/131:53 pmSFO - YYZ
Nonstop5h 07mMultiple Airlines
Tue 5/218:00 pmYYZ - SFO
1 stop19h 41mMultiple Airlines
Deal found 5/7$313
Tue 5/141:53 pmSFO - YYZ
Nonstop5h 07mMultiple Airlines
Tue 5/218:00 pmYYZ - SFO
1 stop19h 41mMultiple Airlines
Deal found 5/7$319
Tue 5/141:53 pmSFO - YYZ
Nonstop5h 07mMultiple Airlines
Mon 5/208:00 pmYYZ - SFO
1 stop31h 41mMultiple Airlines
Deal found 5/7$322
Mon 5/131:53 pmSFO - YYZ
Nonstop5h 07mMultiple Airlines
Mon 5/208:00 pmYYZ - SFO
1 stop31h 41mMultiple Airlines
Deal found 5/8$325
Tue 5/149:25 pmSFO - YYZ
1 stop30h 17mMultiple Airlines
Mon 5/208:00 pmYYZ - SFO
1 stop31h 41mMultiple Airlines
Deal found 5/6$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
Wed 5/159:41 pmSFO - YYZ
1 stop29h 54mMultiple Airlines
Mon 5/208:00 pmYYZ - SFO
1 stop31h 41mMultiple Airlines
Deal found 5/6$330
Tue 5/149:25 pmSFO - YYZ
1 stop30h 17mMultiple Airlines
Tue 5/218:00 pmYYZ - SFO
1 stop19h 41mMultiple Airlines
Deal found 5/7$331

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 2,752,338 searches. Data last updated May 8, 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 6/1112:22 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Deal found 5/7$80
Tue 6/410:07 amSFO - YYZ
1 stop17h 28mMultiple Airlines
Deal found 5/7$92
Tue 6/412:07 pmSFO - YYZ
1 stop15h 28mMultiple Airlines
Deal found 5/7$93
Wed 6/510:37 amSFO - YYZ
1 stop17h 05mMultiple Airlines
Deal found 5/7$96
Thu 9/196:18 pmSFO - YYZ
1 stop9h 17mMultiple Airlines
Deal found 5/7$107
Wed 9/1812:24 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Deal found 5/7$113
Thu 6/2012:22 pmSFO - YYZ
1 stop15h 13mMultiple Airlines
Deal found 5/6$118
Thu 6/610:17 amSFO - YYZ
1 stop17h 18mMultiple Airlines
Deal found 5/7$120
Wed 5/1510:15 amSFO - YKF
1 stop17h 50mFlair Airlines
Deal found 5/7$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 2,752,338 searches. Data last updated May 8, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$194 - $550

Route

Depart

Return

Price

San FranciscoToronto Pearson Intl

SFO - YYZ

SFOYYZ

San Francisco

Tue 6/11

1 stop15h 13m

Toronto Pearson Intl

Tue 6/18

1 stop18h 09m

$194

San FranciscoToronto Pearson Intl

SFO - YYZ

SFOYYZ

San Francisco

Tue 6/11

1 stop16h 57m

Toronto Pearson Intl

Tue 6/18

1 stop15h 24m

$216

San FranciscoToronto Pearson Intl

SFO - YYZ

SFOYYZ

San Francisco

Tue 6/11

1 stop15h 13m

Toronto Pearson Intl

Tue 7/16

1 stop29h 14m

$225

San FranciscoToronto Pearson Intl

SFO - YYZ

SFOYYZ

San Francisco

Tue 6/11

1 stop15h 13m

Toronto Pearson Intl

Wed 6/19

1 stop18h 05m

$235

San FranciscoToronto Kitchener-Waterloo

SFO - YKF

SFOYKF

San Francisco

Thu 5/30

1 stop17h 45m

Toronto Kitchener-Waterloo

Sun 6/2

1 stop15h 55m

$324

San FranciscoToronto Pearson Intl

SFO - YYZ

SFOYYZ

San Francisco

Mon 7/22

2 stops12h 25m

Toronto Pearson Intl

Wed 7/31

2 stops11h 03m

$383

San FranciscoToronto Pearson Intl

SFO - YYZ

SFOYYZ

San Francisco

Sun 5/19

Nonstop5h 07m

Toronto Pearson Intl

Sun 5/26

Nonstop5h 37m

$399

San FranciscoToronto Island

SFO - YTZ

SFOYTZ

San Francisco

Mon 6/10

1 stop10h 19m

Toronto Island

Sat 6/15

1 stop10h 57m

$446

San FranciscoOttawa

SFO - YOW

SFOYOW

San Francisco

Sun 6/23

1 stop17h 38m

Ottawa

Sat 6/29

1 stop18h 15m

$550

Flights are sorted by cheapest first

Deals found on 5/7

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 8, 2024.
Peruse reviews from past customers who have flown with WestJet, Porter Airlines and Air Canada 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
9,141 reviews
Check prices

Overall

8.1

Food

7.3

Entertainment

7.3

Comfort

7.9

Boarding

8.2

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
9,141 reviews
Alaska Airlines
8.1
Very good
9,141 reviews
Check prices

Overall

8.1

Food

7.3

Entertainment

7.3

Comfort

7.9

Boarding

8.2

Crew

8.6

Reviews

1 / 10

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

Delta
8.1
Very good
10,789 reviews
Alaska Airlines
8.1
Very good
9,141 reviews
Check prices

Overall

8.1

Food

7.3

Entertainment

7.3

Comfort

7.9

Boarding

8.2

Crew

8.6

Reviews

1 / 10

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

WestJet
7.6
Good
2,945 reviews
Alaska Airlines
8.1
Very good
9,141 reviews
Check prices

Overall

8.1

Food

7.3

Entertainment

7.3

Comfort

7.9

Boarding

8.2

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
9,141 reviews
Check prices

Overall

8.1

Food

7.3

Entertainment

7.3

Comfort

7.9

Boarding

8.2

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
11,043 reviews
Alaska Airlines
8.1
Very good
9,141 reviews
Check prices

Overall

8.1

Food

7.3

Entertainment

7.3

Comfort

7.9

Boarding

8.2

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 $200 on Cheapflights?

    Yes, there are multiple flights from San Francisco to Region of Ontario for under $200. The cheapest flight booked recently is on Multiple Airlines for just $194, but on average you can expect to pay $246.

  • 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 $400?

    There are currently 20+ open flights from San Francisco to Region of Ontario within the next 7 days for less than $400.

  • 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 5/7.

See more FAQs

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

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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 2,752,338 searches. Data last updated May 8, 2024.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$165Average$457FlexibilityNo cancel feeOn-time52%
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Lynx AirCheapest$192Average$236FlexibilityNo cancel feeOn-timeN/A
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Air CanadaCheapest$204Average$588FlexibilityNo cancel feeOn-time67%
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American AirlinesCheapest$228Average$311FlexibilityNo cancel feeOn-time71%
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United AirlinesCheapest$229Average$622FlexibilityNo cancel feeOn-time69%
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DeltaCheapest$234Average$485FlexibilityNo cancel feeOn-timeN/A
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Alaska AirlinesCheapest$236Average$467FlexibilityNo cancel feeOn-time75%
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Flair AirlinesCheapest$313Average$537FlexibilityNo cancel feeOn-timeN/A
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WestJetCheapest$328Average$502FlexibilityNo cancel feeOn-time60%
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LufthansaCheapest$427Average$582FlexibilityNo cancel feeOn-time76%
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Find flights from San Francisco to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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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 8, 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
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6 PM

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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.

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