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Cheap flights from Ontario to Portland, ME from C$ 224

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 14/6. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — PWM
27 Apr — 4 May1
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 22 April 2025.

Round-trip from

C$ 403

One-way from

C$ 224

Popular in

February

Cheapest in

August

Average price

C$ 687
Delta
  • Delta
  • 5/5-11/5
  • 2 total stops
  • 11h 00m total
  • Ontario to Portland
14/6
  • 14/6
  • 1 total stop
  • 11h 15m total
  • Ontario to Portland
Highest demand for flights based on searches. 8% potential increase in price (C$ 72 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease (C$ 24 potential savings vs. average RT price).
Average for round-trip flights in April 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 22 April 2025.

Mon 5/55:00 p.m.YYZ - PWM
1 stop6h 15mDelta
Sun 11/56:35 a.m.PWM - YYZ
1 stop4h 45mDelta
Deal found 21/4C$ 403
Wed 25/65:30 p.m.YYZ - PWM
1 stop5h 57mUnited Airlines
Sun 29/66:10 a.m.PWM - YYZ
1 stop5h 39mUnited Airlines
Deal found 21/4C$ 405
Mon 5/510:00 a.m.YYZ - PWM
2 stops13h 27mAir Canada
Sun 11/56:00 a.m.PWM - YYZ
1 stop5h 44mAir Canada
Deal found 21/4C$ 463
Thu 12/610:35 a.m.YUL - PWM
1 stop9h 38mAmerican Airlines
Thu 19/61:38 p.m.PWM - YUL
1 stop20h 07mAmerican Airlines
Deal found 21/4C$ 575
Wed 21/56:05 a.m.YUL - PWM
1 stop6h 52mDelta
Wed 28/51:40 p.m.PWM - YUL
1 stop7h 29mDelta
Deal found 21/4C$ 602
Tue 3/66:20 p.m.YUL - PWM
1 stop5h 07mAir Canada
Tue 10/66:20 a.m.PWM - YUL
2 stops8h 01mAir Canada
Deal found 21/4C$ 635
Mon 20/1010:20 a.m.YYZ - PWM
1 stop4h 01mWestJet
Thu 23/103:15 p.m.PWM - YYZ
1 stop5h 14mWestJet
Deal found 21/4C$ 641
Wed 21/56:20 p.m.YUL - PWM
1 stop5h 07mMultiple Airlines
Wed 28/54:04 p.m.PWM - YUL
2 stops9h 47mMultiple Airlines
Deal found 21/4C$ 675
Wed 21/56:45 a.m.YUL - PWM
2 stops9h 18mWestJet
Wed 28/51:40 p.m.PWM - YUL
2 stops10h 57mWestJet
Deal found 21/4C$ 706
Tue 3/68:05 a.m.YUL - PWM
2 stops9h 38mUnited Airlines
Tue 10/66:00 a.m.PWM - YUL
2 stops15h 47mUnited Airlines
Deal found 21/4C$ 734

Cheapflights Fare Finder

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 22 April 2025.
Use the filters below to find and compare flights from Ontario to Portland that are best for you.

Fly from

Ontario

Fly to

Portland

Route

Depart

Return

Price

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Mon 5/5

5:00 p.m.-11:15 p.m.

1 stop6h 15m

Portland

Sun 11/5

6:35 a.m.-11:20 a.m.

1 stop4h 45m

C$ 403

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Wed 25/6

5:30 p.m.-11:27 p.m.

1 stop5h 57m

Portland

Sun 29/6

6:10 a.m.-11:49 a.m.

1 stop5h 39m

C$ 405

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Mon 5/5

10:00 a.m.-11:27 p.m.

2 stops13h 27m

Portland

Sun 11/5

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

1 stop5h 44m

C$ 463

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Thu 12/6

10:35 a.m.-8:13 p.m.

1 stop9h 38m

Portland

Thu 19/6

1:38 p.m.-9:45 a.m.

1 stop20h 07m

C$ 575

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Wed 21/5

6:05 a.m.-12:57 p.m.

1 stop6h 52m

Portland

Wed 28/5

1:40 p.m.-9:09 p.m.

1 stop7h 29m

C$ 602

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Tue 3/6

6:20 p.m.-11:27 p.m.

1 stop5h 07m

Portland

Tue 10/6

6:20 a.m.-2:21 p.m.

2 stops8h 01m

C$ 635

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Wed 21/5

6:20 p.m.-11:27 p.m.

1 stop5h 07m

Portland

Wed 28/5

4:04 p.m.-1:51 a.m.

2 stops9h 47m

C$ 675

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Thu 10/7

6:00 a.m.-12:01 p.m.

1 stop6h 01m

Portland

Sun 20/7

6:00 a.m.-6:52 a.m.

2 stops24h 52m

C$ 695

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Wed 21/5

6:45 a.m.-4:03 p.m.

2 stops9h 18m

Portland

Wed 28/5

1:40 p.m.-12:37 a.m.

2 stops10h 57m

C$ 706

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Tue 3/6

8:05 a.m.-5:43 p.m.

2 stops9h 38m

Portland

Tue 10/6

6:00 a.m.-9:47 p.m.

2 stops15h 47m

C$ 734

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/4

Showing 1-10 of 19 results
1
2

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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Portland

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 22 April 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 22 April 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.

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

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

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

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

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

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

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

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

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

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

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

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$ 240), Air Canada (C$ 242), and American Airlines (C$ 274).

  • 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

Browse thousands of different options on Cheapflights for your next trip

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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 22 April 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 326AverageC$ 666FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 382AverageC$ 469FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 500AverageC$ 651FlexibilityNo 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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Yes! Cheapflights helps users easily find flights from Ontario to Portland with no change fees.

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