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Cheap flights from Ontario to Portland (ONT - PWM) from $148

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 8/11. 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.
ONT — PWM
Jun 13 — Jun 201
From?
To?
Thu 6/13
Thu 6/20
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 June 8, 2024.

Popular in

April

Cheapest in

January

Round-trip from

$293

One-way from

$193
High demand for flights, 66% potential price rise
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Best time to find cheap flights, 50% potential price drop
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From Ontario to Portland
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One-way flight 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 51 days before your planned departure. Booking around this time can save you about 145% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $450 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $718.

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

September is one of the best times of the year to fly to Portland, Maine from Ontario. Prices for September average $511 per person but you can even find prices for as low as $231. The most expensive prices can be found in the month of December. Opting for a September flight can save you 30% on your journey compared to booking in December

What is the cheapest time of day to fly from ONT to 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 Ontario to Portland flights in June & July 2024

Find cheap flight options from Ontario to Portland specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,045,324 searches. Prices were last updated on June 8, 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.
Wed 6/125:15 amONT - PWM
1 stop7h 24mUnited Airlines
Wed 6/193:20 pmPWM - ONT
1 stop8h 28mUnited Airlines
Deal found 6/8$670
Sun 7/75:10 amONT - PWM
1 stop7h 33mUnited Airlines
Fri 7/126:05 amPWM - ONT
2 stops19h 40mUnited Airlines
Deal found 6/7$800
Mon 6/1011:40 pmONT - PWM
1 stop10h 49mJetBlue
Wed 6/122:24 pmPWM - ONT
1 stop10h 45mJetBlue
Deal found 6/7$851
Thu 7/1810:36 pmONT - PWM
1 stop10h 42mAmerican Airlines
Mon 7/293:59 pmPWM - ONT
1 stop10h 01mAmerican Airlines
Deal found 6/7$856
Tue 7/98:10 amONT - PWM
2 stops12h 36mAmerican Airlines
Thu 7/183:59 pmPWM - ONT
1 stop10h 01mAmerican Airlines
Deal found 6/8$861
Sun 7/711:59 pmONT - PWM
2 stops13h 04mAmerican Airlines
Wed 7/101:08 pmPWM - ONT
2 stops11h 57mAmerican Airlines
Deal found 6/8$866
Mon 6/1710:45 pmONT - PWM
1 stop10h 25mAmerican Airlines
Sat 6/296:32 pmPWM - ONT
1 stop8h 27mAmerican Airlines
Deal found 6/7$877
Mon 6/178:10 amONT - PWM
2 stops13h 42mAmerican Airlines
Sat 6/292:43 pmPWM - ONT
1 stop9h 44mAmerican Airlines
Deal found 6/7$882
Fri 6/710:45 pmONT - PWM
1 stop10h 29mAmerican Airlines
Mon 6/104:00 pmPWM - ONT
1 stop9h 59mAmerican Airlines
Deal found 6/7$898

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 3,045,324 searches. Data last updated June 8, 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.
Fri 9/2011:36 pmONT - PWM
1 stop9h 35mJetBlue
Tue 9/241:06 pmPWM - ONT
1 stop12h 15mJetBlue
Deal found 6/6$274
Tue 10/1511:36 pmONT - PWM
1 stop9h 35mJetBlue
Tue 10/221:06 pmPWM - ONT
1 stop12h 15mJetBlue
Deal found 6/6$300
Fri 10/2511:00 pmONT - PWM
1 stop9h 24mAmerican Airlines
Tue 10/291:18 pmPWM - ONT
1 stop9h 55mAmerican Airlines
Deal found 6/7$322
Fri 10/2511:00 pmONT - PWM
1 stop9h 24mAmerican Airlines
Tue 10/291:14 pmPWM - ONT
2 stops11h 29mAmerican Airlines
Deal found 6/7$327
Wed 10/911:36 pmONT - PWM
1 stop9h 35mJetBlue
Wed 10/161:06 pmPWM - ONT
1 stop11h 59mJetBlue
Deal found 6/6$343
Fri 10/2511:59 pmONT - PWM
2 stops12h 13mAmerican Airlines
Tue 10/291:18 pmPWM - ONT
2 stops11h 25mAmerican Airlines
Deal found 6/7$368
Wed 10/166:00 amONT - PWM
2 stops14h 59mUnited Airlines
Tue 10/223:35 pmPWM - ONT
1 stop7h 57mUnited Airlines
Deal found 6/6$427
Sun 8/117:27 pmONT - PWM
2 stops13h 09mAmerican Airlines
Sun 8/186:04 amPWM - ONT
2 stops13h 07mAmerican Airlines
Deal found 6/7$451
Tue 10/156:00 amONT - PWM
2 stops14h 59mUnited Airlines
Tue 10/223:35 pmPWM - ONT
1 stop7h 57mUnited Airlines
Deal found 6/6$463

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 3,045,324 searches. Data last updated June 8, 2024.
Check out these flights departing soon from Ontario to Portland. Users should examine the flight details to ensure there are no surprises.
Mon 6/1011:40 pmONT - PWM
1 stop10h 49mJetBlue
Wed 6/122:24 pmPWM - ONT
1 stop10h 45mJetBlue
Deal found 6/7$851
Mon 6/1710:45 pmONT - PWM
1 stop10h 25mAmerican Airlines
Sat 6/296:32 pmPWM - ONT
1 stop8h 27mAmerican Airlines
Deal found 6/7$877
Mon 6/178:10 amONT - PWM
2 stops13h 42mAmerican Airlines
Sat 6/292:43 pmPWM - ONT
1 stop9h 44mAmerican Airlines
Deal found 6/7$882
Sat 6/151:29 pmONT - PWM
1 stop23h 10mUnited Airlines
Mon 6/173:20 pmPWM - ONT
1 stop8h 28mUnited Airlines
Deal found 6/7$1,367
Tue 6/185:15 amONT - PWM
1 stop7h 24mUnited Airlines
Tue 6/253:20 pmPWM - ONT
1 stop8h 28mUnited Airlines
Deal found 6/7$1,439
Sun 6/911:40 pmONT - PWM
1 stop10h 49mJetBlue
Tue 6/112:24 pmPWM - ONT
1 stop10h 45mJetBlue
Deal found 6/6$1,452
Tue 6/115:15 amONT - PWM
1 stop7h 24mUnited Airlines
Thu 6/133:20 pmPWM - ONT
1 stop29h 08mUnited Airlines
Deal found 6/7$1,712
Sun 6/94:21 pmONT - PWM
2 stops15h 16mAlaska Airlines
Tue 6/1112:34 pmPWM - ONT
2 stops14h 24mAlaska Airlines
Deal found 6/6$2,355
Mon 6/104:21 pmONT - PWM
2 stops15h 16mAlaska Airlines
Wed 6/1212:34 pmPWM - ONT
2 stops14h 24mAlaska Airlines
Deal found 6/7$3,802

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 3,045,324 searches. Data last updated June 8, 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 8/117:27 pmONT - PWM
2 stops13h 09mAmerican Airlines
Deal found 6/7$148
Sun 8/117:27 pmONT - PWM
2 stops13h 09mAmerican Airlines
Deal found 6/7$184
Sat 7/67:59 pmONT - PWM
2 stops16h 06mFrontier
Deal found 6/6$192
Sat 7/67:59 pmONT - PWM
2 stops16h 06mFrontier
Deal found 6/6$193
Sun 8/410:36 pmONT - PWM
1 stop10h 42mAmerican Airlines
Deal found 6/7$219
Sun 8/47:18 pmONT - PWM
2 stops12h 35mAmerican Airlines
Deal found 6/7$224
Thu 7/46:00 amONT - PWM
2 stops11h 55mUnited Airlines
Deal found 6/7$344
Sun 8/115:10 amONT - PWM
1 stop7h 33mUnited Airlines
Deal found 6/7$364
Wed 6/125:15 amONT - PWM
1 stop7h 24mUnited Airlines
Deal found 6/7$378

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 3,045,324 searches. Data last updated June 8, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$274 - $472

Route

Depart

Return

Price

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Fri 9/20

1 stop9h 35m

Portland

Tue 9/24

1 stop12h 15m

$274

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Tue 10/15

1 stop9h 35m

Portland

Tue 10/22

1 stop12h 15m

$300

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Fri 10/25

1 stop9h 24m

Portland

Tue 10/29

1 stop9h 55m

$322

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Fri 10/25

1 stop9h 24m

Portland

Tue 10/29

2 stops11h 29m

$327

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Wed 10/9

1 stop9h 35m

Portland

Wed 10/16

1 stop11h 59m

$343

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Fri 10/25

2 stops12h 13m

Portland

Tue 10/29

2 stops11h 25m

$368

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Wed 10/16

2 stops14h 59m

Portland

Tue 10/22

1 stop7h 57m

$427

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Tue 10/15

2 stops14h 59m

Portland

Tue 10/22

1 stop7h 57m

$463

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Wed 10/16

2 stops14h 59m

Portland

Tue 10/22

2 stops15h 06m

$472

Flights are sorted by cheapest first

Deals found on 6/6

What is the cheapest day 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 June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ontario to Portland, Maine flight should consider departing on Saturday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Ontario to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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

If weather is an important factor for your trip to Portland, Maine, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 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 June 8, 2024.
Read reviews from past customers who have flown American Airlines, 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.
Delta
8.0
Very good
10,333 reviews

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Boarding

8.2

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Delta
8.0
Very good
10,333 reviews
Delta
8.0
Very good
10,333 reviews

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Boarding

8.2

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

JetBlue
7.6
Good
4,300 reviews
Delta
8.0
Very good
10,333 reviews

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Boarding

8.2

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

United Airlines
7.4
Good
10,686 reviews
Delta
8.0
Very good
10,333 reviews

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Boarding

8.2

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

American Airlines
7.3
Good
14,204 reviews
Delta
8.0
Very good
10,333 reviews

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Boarding

8.2

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Frontier
6.2
Okay
3,976 reviews
Delta
8.0
Very good
10,333 reviews

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Boarding

8.2

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

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 $274, but on average you can expect to pay $532.

  • Are there last-minute flights available from Ontario to Portland, Maine for under $900?

    There are currently 9+ open flights from Ontario to Portland, Maine within the next 7 days for less than $900.

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

    Currently priced at $274, 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 United Airlines - these airlines can fly you to your destination from $322 and $427, respectively. JetBlue is 47% 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?

    $148 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Frontier and United Airlines, with prices starting from $192 and $344, respectively.

  • 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 6/7.

  • 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 is the cheapest month to book a flight from Ontario to Portland, Maine?

    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 $498). 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.

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Alternative routes for Ontario to Portland
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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 3,045,324 searches. Data last updated June 8, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$193Average$459FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$304Average$617FlexibilityNo cancel feeOn-time69%
DeltaCheapest$332Average$523FlexibilityNo cancel feeOn-timeN/A
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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.
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