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Cheap flights from Ontario to Portland (ONT - PWM) from $130

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 5/26. 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.
ONT — PWM
May 4 — May 111
From?
To?
Sat 5/4
Sat 5/11
1 adult, Economy
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Cheap flight deals from Ontario to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Portland (PWM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 29, 2024.

Popular in

July

Cheapest in

February

Average price

$694

Round-trip from

$293
High demand for flights, 34% potential price rise
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Best time to find cheap flights, 42% potential price drop
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Average for round-trip flights in April 2024
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From Ontario to Portland
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What is the cheapest day to fly round-trip from Ontario to Portland, Maine?

It’s generally more expensive to depart on a Friday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from Ontario to Portland, Maine?

To save on the cost of your flight from Ontario to Portland, Maine, book at least 55 days before your planned departure. Booking around this time can save you about 74% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $462 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $656.

What is the cheapest month to fly from Ontario to Portland, Maine?

January is one of the best times of the year to fly to Portland, Maine from Ontario. Prices for January average $524 per person but you can even find prices for as low as $240. The most expensive prices can be found in the month of December. Opting for a January flight can save you 31% on your journey compared to booking in December

When is the cheapest time to fly from Ontario to Portland, Maine (ONT - PWM)?

A simple way to save on the total cost of your ticket is to fly from Ontario to Portland, Maine at noon. If you’re flexible enough to do this you can expect to save up to 13% on your trip compared to booking a flight in the morning.

Cheap Delta flights from Ontario to Portland

Explore cheap flight options specifically provided by Delta for the route between Ontario and Portland. 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 2,948,547 searches. Data last updated April 29, 2024.
Take a look at some of the lowest-priced Delta flights heading from Ontario to Portland. Make sure to double check the flight details before booking.
Sat 8/2412:45 pmONT - PWM
1 stop7h 54mDelta
Wed 8/286:05 amPWM - ONT
1 stop8h 05mDelta
Deal found 4/27$296
Sat 8/247:00 amONT - PWM
2 stops13h 50mDelta
Wed 8/286:05 amPWM - ONT
1 stop8h 05mDelta
Deal found 4/27$301
Sat 8/2412:45 pmONT - PWM
1 stop7h 54mDelta
Wed 8/286:05 amPWM - ONT
1 stop8h 05mDelta
Deal found 4/28$317
Sat 8/247:00 amONT - PWM
2 stops13h 50mDelta
Wed 8/286:05 amPWM - ONT
1 stop8h 05mDelta
Deal found 4/28$341
Thu 8/2912:45 pmONT - PWM
1 stop7h 54mDelta
Wed 9/46:05 amPWM - ONT
1 stop8h 05mDelta
Deal found 4/28$365
Sat 8/247:00 amONT - PWM
2 stops13h 50mDelta
Wed 8/2811:25 amPWM - ONT
2 stops13h 47mDelta
Deal found 4/27$376
Sat 8/247:00 amONT - PWM
2 stops13h 50mDelta
Wed 8/2811:25 amPWM - ONT
2 stops13h 47mDelta
Deal found 4/28$416
Thu 8/2912:45 pmONT - PWM
1 stop7h 54mDelta
Wed 9/411:25 amPWM - ONT
2 stops13h 47mDelta
Deal found 4/28$440

Cheap United Airlines flights from Ontario to Portland

Explore cheap flight options specifically provided by United Airlines for the route between Ontario and Portland. 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 2,948,547 searches. Data last updated April 29, 2024.
Some of the lowest-priced United Airlines flights we've found at this time heading from Ontario to Portland. Deals are refreshing constantly so come back soon for more options.
Wed 9/46:25 pmONT - PWM
2 stops13h 06mUnited Airlines
Thu 9/53:45 pmPWM - ONT
1 stop8h 17mUnited Airlines
Deal found 4/28$461
Wed 9/46:25 pmONT - PWM
2 stops13h 06mUnited Airlines
Thu 9/53:45 pmPWM - ONT
2 stops12h 00mUnited Airlines
Deal found 4/28$497
Wed 9/45:15 amONT - PWM
1 stop7h 31mUnited Airlines
Thu 9/53:45 pmPWM - ONT
1 stop8h 17mUnited Airlines
Deal found 4/28$551
Mon 5/275:15 amONT - PWM
1 stop7h 24mUnited Airlines
Mon 1/2711:17 amPWM - ONT
2 stops13h 04mUnited Airlines
Deal found 4/28$565
Thu 9/56:00 amONT - PWM
2 stops14h 59mUnited Airlines
Sat 9/145:30 amPWM - ONT
2 stops19h 01mUnited Airlines
Deal found 4/28$603
Wed 6/125:15 amONT - PWM
1 stop7h 24mUnited Airlines
Fri 8/93:20 pmPWM - ONT
1 stop8h 28mUnited Airlines
Deal found 4/28$746
Tue 6/115:15 amONT - PWM
1 stop7h 24mUnited Airlines
Tue 6/253:20 pmPWM - ONT
1 stop8h 28mUnited Airlines
Deal found 4/28$788
Tue 7/95:20 amONT - PWM
1 stop7h 23mUnited Airlines
Wed 7/173:20 pmPWM - ONT
1 stop8h 28mUnited Airlines
Deal found 4/28$830
Fri 7/126:00 amONT - PWM
2 stops14h 53mUnited Airlines
Mon 7/155:30 amPWM - ONT
2 stops18h 41mUnited Airlines
Deal found 4/28$850

Cheap Ontario to Portland flights in April & May 2024

Find cheap flight options from Ontario to Portland specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,948,547 searches. Prices were last updated on April 29, 2024.
Listed are some of the best fares we've found on flights departing from Ontario to Portland in 2024. More deals are always being added, so be sure to check back regularly.
Tue 5/2811:40 pmONT - PWM
1 stop10h 49mJetBlue
Tue 6/42:24 pmPWM - ONT
1 stop10h 45mJetBlue
Deal found 4/28$248
Mon 5/2711:40 pmONT - PWM
1 stop10h 49mJetBlue
Mon 6/32:24 pmPWM - ONT
1 stop10h 45mJetBlue
Deal found 4/27$361
Sun 5/2611:40 pmONT - PWM
1 stop10h 49mJetBlue
Sun 6/22:24 pmPWM - ONT
1 stop10h 45mJetBlue
Deal found 4/28$447
Mon 5/611:59 pmONT - PWM
2 stops11h 00mAmerican Airlines
Fri 5/1012:21 pmPWM - ONT
1 stop9h 38mAmerican Airlines
Deal found 4/28$563
Mon 5/275:15 amONT - PWM
1 stop7h 24mUnited Airlines
Mon 1/2711:17 amPWM - ONT
2 stops13h 04mUnited Airlines
Deal found 4/28$565
Mon 5/67:40 pmONT - PWM
2 stops13h 08mAmerican Airlines
Fri 5/1012:21 pmPWM - ONT
2 stops14h 35mAmerican Airlines
Deal found 4/28$568
Fri 5/2410:29 pmONT - PWM
1 stop10h 18mAmerican Airlines
Mon 5/2712:59 pmPWM - ONT
2 stops12h 30mAmerican Airlines
Deal found 4/28$580
Mon 5/611:40 pmONT - PWM
1 stop10h 44mJetBlue
Thu 5/92:19 pmPWM - ONT
1 stop10h 50mJetBlue
Deal found 4/28$598
Mon 5/611:40 pmONT - PWM
1 stop10h 44mJetBlue
Thu 5/92:19 pmPWM - ONT
1 stop10h 50mJetBlue
Deal found 4/28$646

Ontario to Portland 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Portland in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,948,547 searches. Data last updated April 29, 2024.
Listed are some of the best fares we've found on flights departing from Ontario to Portland in 2024. More deals are always being added, so be sure to check back regularly.
Tue 5/2811:40 pmONT - PWM
1 stop10h 49mJetBlue
Tue 6/42:24 pmPWM - ONT
1 stop10h 45mJetBlue
Deal found 4/28$248
Sat 9/1411:00 pmONT - PWM
1 stop9h 24mAmerican Airlines
Tue 9/172:12 pmPWM - ONT
2 stops12h 14mAmerican Airlines
Deal found 4/27$290
Sat 8/2412:45 pmONT - PWM
1 stop7h 54mDelta
Wed 8/286:05 amPWM - ONT
1 stop8h 05mDelta
Deal found 4/27$296
Sat 9/149:50 amONT - PWM
2 stops11h 52mAmerican Airlines
Tue 9/172:12 pmPWM - ONT
2 stops12h 14mAmerican Airlines
Deal found 4/27$297
Mon 9/1611:49 pmONT - PWM
1 stop9h 26mJetBlue
Mon 9/231:10 pmPWM - ONT
1 stop12h 17mJetBlue
Deal found 4/28$300
Sat 8/247:00 amONT - PWM
2 stops13h 50mDelta
Wed 8/286:05 amPWM - ONT
1 stop8h 05mDelta
Deal found 4/27$301
Sat 8/2412:45 pmONT - PWM
1 stop7h 54mDelta
Wed 8/286:05 amPWM - ONT
1 stop8h 05mDelta
Deal found 4/28$317
Sat 8/247:00 amONT - PWM
2 stops13h 50mDelta
Wed 8/286:05 amPWM - ONT
1 stop8h 05mDelta
Deal found 4/28$341
Thu 9/511:49 pmONT - PWM
1 stop9h 26mJetBlue
Sat 9/211:10 pmPWM - ONT
1 stop12h 17mJetBlue
Deal found 4/28$343

Ontario to Portland flights leaving soon

Find last-minute flight options from Ontario to Portland 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 2,948,547 searches. Data last updated April 29, 2024.
Check out these flights departing soon from Ontario to Portland. Users should examine the flight details to ensure there are no surprises.
Mon 5/611:59 pmONT - PWM
2 stops11h 00mAmerican Airlines
Fri 5/1012:21 pmPWM - ONT
1 stop9h 38mAmerican Airlines
Deal found 4/28$563
Mon 5/67:40 pmONT - PWM
2 stops13h 08mAmerican Airlines
Fri 5/1012:21 pmPWM - ONT
2 stops14h 35mAmerican Airlines
Deal found 4/28$568
Mon 5/611:40 pmONT - PWM
1 stop10h 44mJetBlue
Thu 5/92:19 pmPWM - ONT
1 stop10h 50mJetBlue
Deal found 4/28$598
Mon 5/611:40 pmONT - PWM
1 stop10h 44mJetBlue
Thu 5/92:19 pmPWM - ONT
1 stop10h 50mJetBlue
Deal found 4/28$646
Mon 5/66:00 amONT - PWM
2 stops13h 44mAmerican Airlines
Thu 5/912:21 pmPWM - ONT
1 stop9h 38mAmerican Airlines
Deal found 4/28$855
Mon 5/610:29 pmONT - PWM
1 stop10h 18mAmerican Airlines
Thu 5/912:21 pmPWM - ONT
1 stop9h 38mAmerican Airlines
Deal found 4/28$1,985

One-way flights to Portland from Ontario

Search for one-way flight options from Ontario to Portland. 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 2,948,547 searches. Data last updated April 29, 2024.
If you're seeking multiple options on one-way flights from Ontario to Portland, be sure to check out these deals, which are updated often. Users needing a return flight from Ontario to Portland should utilize the search form above.
Sun 5/2611:40 pmONT - PWM
1 stop10h 49mJetBlue
Deal found 4/28$130
Sun 9/112:45 pmONT - PWM
1 stop7h 54mDelta
Deal found 4/28$148
Fri 9/611:49 pmONT - PWM
1 stop9h 26mJetBlue
Deal found 4/28$150
Wed 9/411:49 pmONT - PWM
1 stop9h 26mJetBlue
Deal found 4/28$193
Sat 8/3112:45 pmONT - PWM
1 stop7h 54mDelta
Deal found 4/28$258
Tue 9/312:45 pmONT - PWM
1 stop7h 54mDelta
Deal found 4/28$283
Sat 7/1310:00 pmONT - PWM
2 stops11h 10mDelta
Deal found 4/28$304
Tue 5/711:40 pmONT - PWM
1 stop10h 44mJetBlue
Deal found 4/28$329
Thu 8/16:00 amONT - PWM
2 stops14h 53mUnited Airlines
Deal found 4/28$359

Find flights from Ontario to Portland within your budget

Customize your flight search to find flights from Ontario to Portland 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 2,948,547 searches. Data last updated April 29, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$248 - $461

Route

Depart

Return

Price

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Tue 5/28

1 stop10h 49m

Portland

Tue 6/4

1 stop10h 45m

$248

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Sat 9/14

1 stop9h 24m

Portland

Tue 9/17

2 stops12h 14m

$290

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Sat 8/24

1 stop7h 54m

Portland

Wed 8/28

1 stop8h 05m

$296

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Sat 9/14

2 stops11h 52m

Portland

Tue 9/17

2 stops12h 14m

$297

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Mon 9/16

1 stop9h 26m

Portland

Mon 9/23

1 stop12h 17m

$300

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Sat 8/24

2 stops13h 50m

Portland

Wed 8/28

1 stop8h 05m

$301

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Sat 8/24

1 stop7h 54m

Portland

Wed 8/28

1 stop8h 05m

$317

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Thu 9/5

1 stop9h 26m

Portland

Sat 9/21

1 stop12h 17m

$343

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Wed 9/4

2 stops13h 06m

Portland

Thu 9/5

1 stop8h 17m

$461

Flights are sorted by cheapest first

Deals found on 4/28

When is the cheapest time to fly from Ontario to Portland, Maine?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Portland. Price data was last updated on April 28, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ontario to Portland, Maine flight should consider departing on Tuesday evenings when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Portland by month

Plan your trip from Ontario to Portland by taking into account the cheapest months to travel. The average price of a one-way flight from Ontario to Portland is currently $239 while a round-trip flight costs $317. Price data was last updated on April 21, 2024.

Currently, January is the cheapest month in which you can book a flight from Ontario to Portland, Maine (average of $293). Flying from Ontario to Portland, Maine in April is currently the most expensive (average of $497). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$293

February

$332

March

$414

April

$497

May

$431

June

$413

July

$448

August

$360

September

$340

October

$323

November

$333

December

$333

Temperature and rainfall in Portland by month

Plan your trip to Portland by taking into account the average temperature and rainfall totals by month.

PWM

Temperature

23 - 68 °F

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated April 29, 2024.
Read reviews from past customers who have flown Delta, United Airlines and JetBlue from Ontario to Portland. 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
9,116 reviews
Check prices

Entertainment

7.3

Food

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Comfort

7.9

Reviews

1 / 10

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

Alaska Airlines
8.1
Very good
9,116 reviews
Alaska Airlines
8.1
Very good
9,116 reviews
Check prices

Entertainment

7.3

Food

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Comfort

7.9

Reviews

1 / 10

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

Delta
8.1
Very good
10,913 reviews
Alaska Airlines
8.1
Very good
9,116 reviews
Check prices

Entertainment

7.3

Food

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Comfort

7.9

Reviews

1 / 10

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

JetBlue
7.6
Good
4,575 reviews
Alaska Airlines
8.1
Very good
9,116 reviews
Check prices

Entertainment

7.3

Food

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Comfort

7.9

Reviews

1 / 10

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

United Airlines
7.4
Good
11,202 reviews
Alaska Airlines
8.1
Very good
9,116 reviews
Check prices

Entertainment

7.3

Food

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Comfort

7.9

Reviews

1 / 10

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

American Airlines
7.3
Good
14,834 reviews
Alaska Airlines
8.1
Very good
9,116 reviews
Check prices

Entertainment

7.3

Food

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Comfort

7.9

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 Ontario to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Ontario to Portland, Maine for under $300 on Cheapflights?

    Yes, there are multiple flights from Ontario to Portland, Maine for under $300. The cheapest flight booked recently is on JetBlue for just $248, but on average you can expect to pay $364.

  • Are there last-minute flights available from Ontario to Portland, Maine for under $600?

    There are currently 6+ open flights from Ontario to Portland, Maine within the next 7 days for less than $600.

  • What are the cheapest airlines flying from Ontario to Portland, Maine round-trip?

    Currently priced at $248, JetBlue will fly you from Ontario to Portland, Maine and back. In addition to JetBlue, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Delta - these airlines can fly you to your destination from $290 and $296, respectively. JetBlue is 54% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Ontario to Portland, Maine one-way?

    $130 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $148 and $359, respectively.

  • What are the most popular airlines that fly from Ontario to Portland, Maine?

    American Airlines, Delta and United Airlines are the most popular airlines when flying from Ontario to Portland, Maine.

  • What does ONT to PWM mean?

    Great question - ONT to PWM just means Ontario Airport to Portland Airport. Now you’ll know what these unique codes when you look for flights!

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

    The amount of baggage you can bring on your Ontario to Portland 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 Ontario to Portland with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Portland 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 Ontario to Portland that include hotel bookings?

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

  • How can I find direct flights from Ontario to Portland?

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

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

    Yes. Cheapflights offers flight deals from Ontario to Portland 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 Ontario to Portland that allow pets onboard?

    Many airlines flying from Ontario to Portland 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 Ontario to Portland?

    Yes, you can often find last-minute deals on Ontario to Portland 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 Ontario to Portland, Maine flight deals updated?

    The Ontario to Portland, Maine flight deals you see on this page were last updated on 4/28.

See more FAQs

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Top 3 airlines flying from Ontario to Portland

Discover the top 3 airlines that operate flights from Ontario to Portland. 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 2,948,547 searches. Data last updated April 29, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$195Average$494FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$304Average$617FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$338Average$546FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
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Search flights from Ontario to Portland by cabin class

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

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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 Ontario to Portland?

When you search for this flight from Ontario to Portland, 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 Ontario to Portland?

Cheapflights simply makes it quick and affordable to book flights from Ontario to Portland by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Need flexible booking options for your flight to Portland from Ontario? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on Ontario to Portland 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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