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Cheap flights from Ontario to Portland, ME from C$ 243

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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — PWM
26 Feb — 5 Mar1
1 adult

Cheap flight deals from Ontario to Portland

Keep the following information in mind while searching for Ontario to Portland flight deals. Data was last updated 21 February 2025.

Round-trip from

C$ 408

One-way from

C$ 243

Popular in

February

Cheapest in

September

Average price

C$ 818
United Airlines
  • United Airlines
  • 28/3-31/3
  • 2 total stops
  • 18h 06m total
  • Ontario to Portland
Delta
  • Delta
  • 6/4
  • 1 total stop
  • 8h 28m total
  • Ontario to Portland
Highest demand for flights based on searches. 17% potential increase in price (C$ 173 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease (C$ 34 potential savings vs. average RT price).
Average for round-trip flights in February 2025

Find flight deals from Ontario to Portland

Cheapest flights from Ontario to Portland
Explore the most affordable flight options available from Ontario to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.

Fri 28/39:00 a.m.YYZ - PWM
1 stop12h 22mUnited Airlines
Mon 31/36:00 a.m.PWM - YYZ
1 stop5h 44mUnited Airlines
Deal found 20/2C$ 408
Sat 22/310:55 a.m.YYZ - PWM
1 stop5h 45mAmerican Airlines
Sat 29/35:25 a.m.PWM - YYZ
1 stop6h 26mAmerican Airlines
Deal found 20/2C$ 420
Sat 22/312:20 p.m.YYZ - PWM
2 stops10h 55mAir Canada
Sat 29/36:10 a.m.PWM - YYZ
2 stops14h 40mAir Canada
Deal found 20/2C$ 494
Sun 6/410:20 a.m.YYZ - PWM
1 stop25h 49mWestJet
Sun 13/47:00 a.m.PWM - YYZ
1 stop25h 55mWestJet
Deal found 20/2C$ 540
Sat 1/36:05 p.m.YYZ - PWM
1 stop6h 21mDelta
Mon 3/35:25 p.m.PWM - YYZ
1 stop6h 14mDelta
Deal found 19/2C$ 581
Mon 2/67:45 a.m.YYZ - PWM
2 stops9h 51mMultiple Airlines
Wed 4/612:53 p.m.PWM - YYZ
1 stop10h 54mMultiple Airlines
Deal found 19/2C$ 605
Fri 28/36:00 a.m.YUL - PWM
1 stop9h 49mDelta
Mon 31/36:15 a.m.PWM - YUL
1 stop10h 13mDelta
Deal found 20/2C$ 652
Mon 3/35:35 p.m.YUL - PWM
2 stops18h 12mAmerican Airlines
Sat 8/34:11 p.m.PWM - YUL
2 stops16h 59mAmerican Airlines
Deal found 20/2C$ 835
Fri 28/35:23 p.m.YUL - PWM
1 stop25h 47mWestJet
Mon 31/36:15 a.m.PWM - YUL
2 stops18h 24mWestJet
Deal found 20/2C$ 848
Mon 3/34:10 p.m.YUL - PWM
1 stop7h 05mUnited Airlines
Sat 8/33:55 p.m.PWM - YUL
1 stop5h 47mUnited Airlines
Deal found 20/2C$ 1,102
Mon 3/310:45 a.m.YUL - PWM
2 stops12h 25mMultiple Airlines
Sat 8/312:00 p.m.PWM - YUL
3 stops45h 10mMultiple Airlines
Deal found 20/2C$ 1,608

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 629,999 searches. Data last updated 21 February 2025.

Fly from

Ontario

Fly to

Portland

Route

Depart

Return

Price

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Thu 3/4

3:00 p.m.-11:27 p.m.

1 stop8h 27m

Portland

Tue 8/4

3:28 p.m.-10:23 p.m.

1 stop6h 55m

C$ 361

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Fri 28/3

9:00 a.m.-9:22 p.m.

1 stop12h 22m

Portland

Mon 31/3

6:00 a.m.-11:44 a.m.

1 stop5h 44m

C$ 408

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Sat 22/3

10:55 a.m.-4:40 p.m.

1 stop5h 45m

Portland

Sat 29/3

5:25 a.m.-11:51 a.m.

1 stop6h 26m

C$ 420

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Sun 6/4

10:20 a.m.-12:09 p.m.

1 stop25h 49m

Portland

Sun 13/4

7:00 a.m.-8:55 a.m.

1 stop25h 55m

C$ 540

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Fri 28/3

6:00 a.m.-3:49 p.m.

1 stop9h 49m

Portland

Mon 31/3

6:15 a.m.-4:28 p.m.

1 stop10h 13m

C$ 652

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Mon 2/6

6:30 a.m.-1:01 p.m.

2 stops30h 31m

Portland

Wed 4/6

6:18 p.m.-10:44 p.m.

2 stops28h 26m

C$ 656

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Mon 3/3

5:35 p.m.-11:47 a.m.

2 stops18h 12m

Portland

Sat 8/3

4:11 p.m.-9:10 a.m.

2 stops16h 59m

C$ 835

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Fri 28/3

5:23 p.m.-7:10 p.m.

1 stop25h 47m

Portland

Mon 31/3

6:15 a.m.-12:39 a.m.

2 stops18h 24m

C$ 848

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Mon 3/3

4:10 p.m.-11:15 p.m.

1 stop7h 05m

Portland

Sat 8/3

3:55 p.m.-9:42 p.m.

1 stop5h 47m

C$ 1,102

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Mon 3/3

10:45 a.m.-11:10 p.m.

2 stops12h 25m

Portland

Sat 8/3

12:00 p.m.-9:10 a.m.

3 stops45h 10m

C$ 1,608

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/2

Showing 1-10 of 18 results
1
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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.

Travel insights for flights from Ontario to Portland

Get recent, data-driven insights about flights from Ontario to Portland including ideal travel times, pricing trends, and more.

What is the cheapest time of day to fly from ON to PWM?

Find hourly flight availability from Ontario to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 February 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to Portland, Maine as you normally would.

Rainfall in Portland by month

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

In terms of precipitation, rainfall in Portland, Maine ranges from 73.0 - 115.0 mm per month. November is typically the wettest month, when rainfall can reach 115.0 mm. August is typically the driest time to visit Portland, Maine when rainfall is around 73.0 mm.

Temperature in Portland by month

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

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 20.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

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 21 February 2025.
To help decide which airline to fly from Ontario to Portland, see what other customers have to say about Delta, United Airlines and American 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.

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

8.0
Very good

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.
  • What airport do you fly into for flights to Portland from Ontario?

    For a flight from Ontario to Portland, you will be flying into Portland. Portland (PWM) is just 4.7 km from the centre of the city.

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

    The cheapest airlines for a one-way flight from Region of Ontario to Portland, Maine are Delta (C$ 243), American Airlines (C$ 419), and WestJet (C$ 521).

  • 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.

See more FAQs

Travelling to a place near Ontario?

Book flights to Ontario if you plan to visit one of these locations
North Conway

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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 629,999 searches. Data last updated 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 336AverageC$ 669FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 393AverageC$ 522FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 494AverageC$ 653FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

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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?

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

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

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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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