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Cheap flights from Portland to Ontario (PWM - ONT) from $228

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 6/21. 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.
PWM — ONT
Jun 3 — Jun 101
From?
To?
Mon 6/3
Mon 6/10
1 adult, Economy
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Cheap flight deals from Portland to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Ontario (ONT). 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 May 29, 2024.

Popular in

November

Cheapest in

September

Average price

$487

Round-trip from

$238
High demand for flights, 48% potential price rise
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Best time to find cheap flights, 32% potential price drop
Search Deals
Average for round-trip flights in May 2024
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From Portland to Ontario
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What is the cheapest day to fly round-trip from Portland, Maine to Ontario?

It’s generally more expensive to depart on a Tuesday, 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 Portland, Maine to Ontario?

Travelers have found it’s best to book a flight 37 days in advance to save up to 116% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 37 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Portland, Maine to Ontario 1-2 weeks in advance for as low as $383, or $715 for flights within the next 24 hours.

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

The best pricing can be found in the month of September. Prices to Ontario from Portland, Maine average $483. You can even find prices in September for less than $483, as users have found deals to Ontario from as low as $252. The month of December appears to be one of the more expensive times to travel to Ontario from Portland, Maine. Flying in the targeted month can save you up to 27%.

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

One of the essential ways to save on airfare from Portland, Maine to Ontario is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 33% on airfare.

Cheap American Airlines flights from Portland to Ontario

Explore cheap flight options specifically provided by American Airlines for the route between Portland 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 2,696,634 searches. Data last updated May 29, 2024.
Take a look at some of the lowest-priced American Airlines flights heading from Portland to Ontario. Make sure to double check the flight details before booking.
Thu 6/276:00 amPWM - ONT
2 stops12h 51mAmerican Airlines
Thu 7/44:31 pmONT - PWM
2 stops16h 03mAmerican Airlines
Deal found 5/28$481
Thu 6/134:00 pmPWM - ONT
1 stop9h 59mAmerican Airlines
Mon 7/17:26 pmONT - PWM
2 stops13h 28mAmerican Airlines
Deal found 5/28$539
Thu 6/131:09 pmPWM - ONT
2 stops11h 31mAmerican Airlines
Mon 7/17:26 pmONT - PWM
2 stops13h 28mAmerican Airlines
Deal found 5/28$545
Sun 6/27:45 amPWM - ONT
2 stops14h 03mAmerican Airlines
Fri 6/711:59 pmONT - PWM
2 stops10h 59mAmerican Airlines
Deal found 5/27$577
Thu 6/274:00 pmPWM - ONT
1 stop9h 59mAmerican Airlines
Thu 7/411:59 pmONT - PWM
1 stop9h 19mAmerican Airlines
Deal found 5/28$590
Sun 6/27:45 amPWM - ONT
2 stops14h 03mAmerican Airlines
Fri 6/710:45 pmONT - PWM
1 stop10h 29mAmerican Airlines
Deal found 5/27$699
Sat 7/66:31 amPWM - ONT
2 stops10h 20mAmerican Airlines
Tue 7/98:10 amONT - PWM
2 stops12h 43mAmerican Airlines
Deal found 5/28$713
Sat 7/61:08 pmPWM - ONT
1 stop11h 07mAmerican Airlines
Tue 7/98:10 amONT - PWM
2 stops12h 43mAmerican Airlines
Deal found 5/28$787
Tue 7/93:59 pmPWM - ONT
1 stop10h 01mAmerican Airlines
Sat 7/1310:36 pmONT - PWM
1 stop10h 42mAmerican Airlines
Deal found 5/27$853

Cheap United Airlines flights from Portland to Ontario

Explore cheap flight options specifically provided by United Airlines for the route between Portland 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 2,696,634 searches. Data last updated May 29, 2024.
To aid your search, here are some of the cheapest United Airlines flights we've found from Portland to Ontario. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Sat 6/811:55 amPWM - ONT
2 stops13h 32mUnited Airlines
Mon 6/176:25 pmONT - PWM
2 stops10h 59mUnited Airlines
Deal found 5/28$592
Wed 6/511:55 amPWM - ONT
2 stops13h 32mUnited Airlines
Sat 6/85:15 amONT - PWM
2 stops13h 18mUnited Airlines
Deal found 5/28$680
Wed 6/55:30 amPWM - ONT
2 stops14h 58mUnited Airlines
Sat 6/85:15 amONT - PWM
1 stop7h 24mUnited Airlines
Deal found 5/28$736
Thu 6/274:50 pmPWM - ONT
2 stops32h 55mUnited Airlines
Thu 7/41:30 pmONT - PWM
3 stops28h 25mUnited Airlines
Deal found 5/28$771
Thu 6/133:20 pmPWM - ONT
1 stop8h 28mUnited Airlines
Mon 7/15:10 amONT - PWM
1 stop7h 33mUnited Airlines
Deal found 5/28$827
Wed 6/263:20 pmPWM - ONT
1 stop8h 28mUnited Airlines
Wed 7/35:10 amONT - PWM
1 stop7h 33mUnited Airlines
Deal found 5/27$942
Thu 8/153:20 pmPWM - ONT
1 stop8h 28mUnited Airlines
Mon 8/195:15 amONT - PWM
1 stop7h 31mUnited Airlines
Deal found 5/28$1,036
Wed 8/143:20 pmPWM - ONT
1 stop8h 28mUnited Airlines
Mon 8/195:15 amONT - PWM
1 stop7h 31mUnited Airlines
Deal found 5/28$1,145
Thu 8/223:45 pmPWM - ONT
1 stop8h 17mUnited Airlines
Fri 8/305:15 amONT - PWM
1 stop7h 31mUnited Airlines
Deal found 5/27$1,331

Cheap Portland to Ontario flights in May & June 2024

Find cheap flight options from Portland 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 2,696,634 searches. Prices were last updated on May 29, 2024.
These are some of the most attractive deals on flights from Portland to Ontario in 2024. Check back in a little while for more flight options.
Thu 6/271:40 pmPWM - ONT
1 stop9h 02mDelta
Thu 7/47:05 amONT - PWM
2 stops12h 55mDelta
Deal found 5/28$356
Thu 6/276:00 amPWM - ONT
2 stops12h 51mAmerican Airlines
Thu 7/44:31 pmONT - PWM
2 stops16h 03mAmerican Airlines
Deal found 5/28$481
Thu 6/134:00 pmPWM - ONT
1 stop9h 59mAmerican Airlines
Mon 7/17:26 pmONT - PWM
2 stops13h 28mAmerican Airlines
Deal found 5/28$539
Thu 6/131:09 pmPWM - ONT
2 stops11h 31mAmerican Airlines
Mon 7/17:26 pmONT - PWM
2 stops13h 28mAmerican Airlines
Deal found 5/28$545
Sun 6/27:45 amPWM - ONT
2 stops14h 03mAmerican Airlines
Fri 6/711:59 pmONT - PWM
2 stops10h 59mAmerican Airlines
Deal found 5/27$577
Sat 6/81:34 pmPWM - ONT
1 stop9h 08mDelta
Mon 6/1710:00 pmONT - PWM
2 stops23h 24mDelta
Deal found 5/28$581
Thu 6/274:00 pmPWM - ONT
1 stop9h 59mAmerican Airlines
Thu 7/411:59 pmONT - PWM
1 stop9h 19mAmerican Airlines
Deal found 5/28$590
Sat 6/811:55 amPWM - ONT
2 stops13h 32mUnited Airlines
Mon 6/176:25 pmONT - PWM
2 stops10h 59mUnited Airlines
Deal found 5/28$592
Sat 6/82:24 pmPWM - ONT
1 stop10h 45mJetBlue
Mon 6/1711:59 pmONT - PWM
1 stop16h 00mJetBlue
Deal found 5/28$657

Portland to Ontario 2024 flight deals

Discover exclusive flight deals for travel between Portland and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 29, 2024.
These are some of the most attractive deals on flights from Portland to Ontario in 2024. Check back in a little while for more flight options.
Thu 9/261:06 pmPWM - ONT
1 stop12h 15mJetBlue
Sat 9/2811:36 pmONT - PWM
1 stop9h 35mJetBlue
Deal found 5/28$300
Thu 6/271:40 pmPWM - ONT
1 stop9h 02mDelta
Thu 7/47:05 amONT - PWM
2 stops12h 55mDelta
Deal found 5/28$356
Tue 12/176:00 amPWM - ONT
3 stops18h 21mUnited Airlines
Wed 12/256:02 amONT - PWM
2 stops14h 54mUnited Airlines
Deal found 5/27$401
Tue 12/176:00 amPWM - ONT
3 stops18h 21mUnited Airlines
Wed 12/256:02 amONT - PWM
3 stops14h 54mUnited Airlines
Deal found 5/27$445
Thu 6/276:00 amPWM - ONT
2 stops12h 51mAmerican Airlines
Thu 7/44:31 pmONT - PWM
2 stops16h 03mAmerican Airlines
Deal found 5/28$481
Thu 6/134:00 pmPWM - ONT
1 stop9h 59mAmerican Airlines
Mon 7/17:26 pmONT - PWM
2 stops13h 28mAmerican Airlines
Deal found 5/28$539
Thu 6/131:09 pmPWM - ONT
2 stops11h 31mAmerican Airlines
Mon 7/17:26 pmONT - PWM
2 stops13h 28mAmerican Airlines
Deal found 5/28$545
Sun 6/27:45 amPWM - ONT
2 stops14h 03mAmerican Airlines
Fri 6/711:59 pmONT - PWM
2 stops10h 59mAmerican Airlines
Deal found 5/27$577
Sat 6/81:34 pmPWM - ONT
1 stop9h 08mDelta
Mon 6/1710:00 pmONT - PWM
2 stops23h 24mDelta
Deal found 5/28$581

Portland to Ontario flights leaving soon

Find last-minute flight options from Portland 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 2,696,634 searches. Data last updated May 29, 2024.
Check out these flights departing soon from Portland to Ontario. Users should examine the flight details to ensure there are no surprises.
Sun 6/27:45 amPWM - ONT
2 stops14h 03mAmerican Airlines
Fri 6/711:59 pmONT - PWM
2 stops10h 59mAmerican Airlines
Deal found 5/27$577
Wed 6/511:55 amPWM - ONT
2 stops13h 32mUnited Airlines
Sat 6/85:15 amONT - PWM
2 stops13h 18mUnited Airlines
Deal found 5/28$680
Sun 6/27:45 amPWM - ONT
2 stops14h 03mAmerican Airlines
Fri 6/710:45 pmONT - PWM
1 stop10h 29mAmerican Airlines
Deal found 5/27$699
Wed 6/55:30 amPWM - ONT
2 stops14h 58mUnited Airlines
Sat 6/85:15 amONT - PWM
1 stop7h 24mUnited Airlines
Deal found 5/28$736
Wed 6/52:24 pmPWM - ONT
1 stop10h 45mJetBlue
Sat 6/811:40 pmONT - PWM
1 stop10h 49mJetBlue
Deal found 5/28$766
Sun 6/212:21 pmPWM - ONT
1 stop9h 38mAmerican Airlines
Fri 6/710:45 pmONT - PWM
1 stop10h 29mAmerican Airlines
Deal found 5/27$865
Sun 6/22:32 pmPWM - ONT
2 stops12h 26mAlaska Airlines
Fri 6/74:21 pmONT - PWM
3 stops26h 41mAlaska Airlines
Deal found 5/27$2,300
Sun 6/22:32 pmPWM - ONT
3 stops27h 54mAlaska Airlines
Fri 6/74:21 pmONT - PWM
3 stops26h 41mAlaska Airlines
Deal found 5/27$2,305
Mon 6/32:32 pmPWM - ONT
2 stops12h 26mAlaska Airlines
Fri 6/76:00 amONT - PWM
2 stops13h 35mAlaska Airlines
Deal found 5/28$2,589

One-way flights to Ontario from Portland

Search for one-way flight options from Portland 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 2,696,634 searches. Data last updated May 29, 2024.
Take a look at some of the best available options we've come across on one-way flights from Portland to Ontario. For those needing a return trip from Portland, there is a search form available above.
Fri 6/214:00 pmPWM - ONT
1 stop9h 59mAmerican Airlines
Deal found 5/28$228
Fri 6/211:05 pmPWM - ONT
2 stops11h 35mAmerican Airlines
Deal found 5/28$233
Sat 6/81:34 pmPWM - ONT
1 stop9h 08mDelta
Deal found 5/28$242
Tue 6/46:05 amPWM - ONT
1 stop8h 35mDelta
Deal found 5/28$289
Tue 6/42:32 pmPWM - ONT
2 stops12h 26mAlaska Airlines
Deal found 5/28$297
Thu 8/11:26 pmPWM - ONT
1 stop9h 01mDelta
Deal found 5/28$299
Fri 5/312:24 pmPWM - ONT
1 stop10h 45mJetBlue
Deal found 5/28$323
Fri 5/317:45 amPWM - ONT
2 stops15h 23mAmerican Airlines
Deal found 5/28$332
Tue 8/65:30 amPWM - ONT
2 stops18h 41mUnited Airlines
Deal found 5/28$342

Find flights from Portland to Ontario within your budget

Customize your flight search to find flights from Portland 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 2,696,634 searches. Data last updated May 29, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$356 - $680

Route

Depart

Return

Price

PortlandOntario

PWM - ONT

PWMONT

Portland

Thu 6/27

1 stop9h 02m

Ontario

Thu 7/4

2 stops12h 55m

$356

PortlandOntario

PWM - ONT

PWMONT

Portland

Thu 6/27

2 stops12h 51m

Ontario

Thu 7/4

2 stops16h 03m

$481

PortlandOntario

PWM - ONT

PWMONT

Portland

Thu 6/13

1 stop9h 59m

Ontario

Mon 7/1

2 stops13h 28m

$539

PortlandOntario

PWM - ONT

PWMONT

Portland

Thu 6/13

2 stops11h 31m

Ontario

Mon 7/1

2 stops13h 28m

$545

PortlandOntario

PWM - ONT

PWMONT

Portland

Sun 6/2

2 stops14h 03m

Ontario

Fri 6/7

2 stops10h 59m

$577

PortlandOntario

PWM - ONT

PWMONT

Portland

Sat 6/8

1 stop9h 08m

Ontario

Mon 6/17

2 stops23h 24m

$581

PortlandOntario

PWM - ONT

PWMONT

Portland

Sat 6/8

2 stops13h 32m

Ontario

Mon 6/17

2 stops10h 59m

$592

PortlandOntario

PWM - ONT

PWMONT

Portland

Sat 6/8

1 stop10h 45m

Ontario

Mon 6/17

1 stop16h 00m

$657

PortlandOntario

PWM - ONT

PWMONT

Portland

Wed 6/5

2 stops13h 32m

Ontario

Sat 6/8

2 stops13h 18m

$680

Flights are sorted by cheapest first

Deals found on 5/28

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

Use this chart to determine the cheapest time to fly round-trip from Portland to Ontario. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Portland, Maine to Ontario flight should consider departing on Wednesday 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 Portland to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Portland 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 Ontario by month

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

LAX

Temperature

57.2 - 73.4 °F

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 29, 2024.
To help decide which airline to fly from Portland to Ontario, see what other customers have to say about American Airlines, United Airlines and Alaska Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Boarding

8.2

Entertainment

7.3

Overall

8.1

Food

7.3

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Alaska Airlines
8.1
Very good
9,194 reviews
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Boarding

8.2

Entertainment

7.3

Overall

8.1

Food

7.3

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Delta
8.0
Very good
10,476 reviews
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Boarding

8.2

Entertainment

7.3

Overall

8.1

Food

7.3

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

JetBlue
7.6
Good
4,370 reviews
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Boarding

8.2

Entertainment

7.3

Overall

8.1

Food

7.3

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

United Airlines
7.4
Good
10,799 reviews
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Boarding

8.2

Entertainment

7.3

Overall

8.1

Food

7.3

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

American Airlines
7.3
Good
14,316 reviews
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Boarding

8.2

Entertainment

7.3

Overall

8.1

Food

7.3

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Related info for your journey

Find useful and relevant information for your journey from Portland to Ontario. 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 Portland, Maine to Ontario for under $400 on Cheapflights?

    Yes, there are multiple flights from Portland, Maine to Ontario for under $400. The cheapest flight booked recently is on Delta for just $356, but on average you can expect to pay $673.

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

    There are currently 10+ open flights from Portland, Maine to Ontario within the next 7 days for less than $600.

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

    Delta, at $356, was found to be the cheapest airline from Portland, Maine to Ontario.Alternate airlines to your destination round-trip include American Airlines and United Airlines. Users have found that Delta is 46% cheaper than the other options available to this destination.

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

    The cheapest airlines for a one-way flight from Portland, Maine to Ontario are American Airlines ($228), Delta ($242), and Alaska Airlines ($297).

  • What does PWM to ONT mean?

    Portland Airport is PWM and Ontario Airport is ONT. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

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

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

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

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

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

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

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

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

    Many airlines flying from Portland 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 Portland to Ontario?

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

    The Portland, Maine to Ontario flight deals you see on this page were last updated on 5/28.

  • When is the best time to book a flight from Portland, Maine to Ontario?

    Currently, October is the cheapest month in which you can book a flight from Portland, Maine to Ontario (average of $238). Flying from Portland, Maine to Ontario in July is currently the most expensive (average of $328). 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.

See more FAQs

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

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Top 2 airlines flying from Portland to Ontario

Discover the top 2 airlines that operate flights from Portland 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 2,696,634 searches. Data last updated May 29, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$261Average$533FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$351Average$761FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
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Portland, Maine to Porto flights

Search flights from Portland to Ontario by cabin class

Find flights from Portland 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

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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 Portland to Ontario?

Cheapflights helps you search for flights from Portland to Ontario via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Portland to Ontario.

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

Yes! Cheapflights helps users easily find flights from Portland to Ontario with no change fees.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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