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Cheap flights from Ontario to Portland, ME from C$ 314

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 16/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — PWM
1 Sep — 8 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Portland

Enter your travel dates to find the best prices.

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 2 August 2026.

Tue 8/96:59 p.m.
YYZ
-
PWM
1 stop4h 18m
Delta
Wed 16/91:59 p.m.
PWM
-
YYZ
1 stop4h 10m
Delta
Deal found 28/7C$ 546
Tue 8/96:10 a.m.
YYZ
-
PWM
1 stop9h 29m
Delta
Fri 11/91:59 p.m.
PWM
-
YYZ
1 stop7h 18m
Delta
Deal found 29/7C$ 565
Tue 11/811:01 a.m.
YYZ
-
PWM
1 stop12h 46m
American Airlines
Fri 14/86:46 p.m.
PWM
-
YYZ
1 stop5h 00m
American Airlines
Deal found 28/7C$ 570
Sun 30/87:29 a.m.
YYZ
-
PWM
1 stop5h 11m
American Airlines
Tue 1/98:08 a.m.
PWM
-
YYZ
1 stop15h 38m
American Airlines
Deal found 29/7C$ 577
Fri 11/96:04 p.m.
YYZ
-
PWM
1 stop5h 32m
American Airlines
Fri 18/94:41 p.m.
PWM
-
YYZ
1 stop6h 19m
American Airlines
Deal found 29/7C$ 588
Fri 11/910:15 a.m.
YYZ
-
PWM
1 stop11h 08m
United Airlines
Fri 18/96:00 a.m.
PWM
-
YYZ
1 stop14h 44m
United Airlines
Deal found 28/7C$ 593
Fri 11/96:59 p.m.
YYZ
-
PWM
1 stop26h 16m
WestJet
Fri 18/95:29 p.m.
PWM
-
YYZ
1 stop24h 40m
WestJet
Deal found 30/7C$ 609
Tue 8/96:59 p.m.
YYZ
-
PWM
1 stop4h 18m
WestJet
Wed 16/911:50 a.m.
PWM
-
YYZ
2 stops13h 15m
WestJet
Deal found 28/7C$ 619
Tue 25/85:05 p.m.
YYZ
-
PWM
1 stop17h 16m
WestJet
Sat 5/96:10 a.m.
PWM
-
YYZ
2 stops24h 45m
WestJet
Deal found 1/8C$ 621
Tue 8/96:00 a.m.
YYZ
-
PWM
2 stops31h 16m
WestJet
Fri 11/96:30 a.m.
PWM
-
YYZ
2 stops24h 25m
WestJet
Deal found 29/7C$ 626
Tue 20/109:44 a.m.
YYZ
-
PWM
1 stop4h 54m
United Airlines
Sat 24/109:50 a.m.
PWM
-
YYZ
1 stop4h 29m
United Airlines
Deal found 31/7C$ 628
Sat 5/94:10 p.m.
YYZ
-
PWM
1 stop19h 52m
WestJet
Fri 11/94:45 p.m.
PWM
-
YYZ
1 stop6h 14m
WestJet
Deal found 1/8C$ 635

Find flight deals from Ontario to Portland

Keep the following information in mind while searching for Ontario to Portland flight deals. Data was last updated 2 August 2026.

Round-trip from

C$ 546

One-way from

C$ 314
Delta
  • Delta
  • 8/9-16/9
  • 2 total stops
  • 8h 28m total
  • Ontario to Portland
Search Deals
United Airlines
  • United Airlines
  • 16/9
  • 1 total stop
  • 8h 23m total
  • Ontario to Portland
Search Deals

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 2 August 2026.
Use the filters below to find and compare flights from Ontario to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Tue 8/9

6:59 p.m.-11:17 p.m.

1 stop4h 18m

Portland

Wed 16/9

1:59 p.m.-6:09 p.m.

1 stop4h 10m

C$ 546

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Tue 8/9

6:10 a.m.-3:39 p.m.

1 stop9h 29m

Portland

Fri 11/9

1:59 p.m.-9:17 p.m.

1 stop7h 18m

C$ 565

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Tue 5/1

5:00 p.m.-11:06 p.m.

1 stop6h 06m

Portland

Fri 8/1

11:25 a.m.-8:28 p.m.

1 stop9h 03m

C$ 565

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Tue 11/8

11:01 a.m.-11:47 p.m.

1 stop12h 46m

Portland

Fri 14/8

6:46 p.m.-11:46 p.m.

1 stop5h 00m

C$ 570

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Sun 30/8

7:29 a.m.-12:40 p.m.

1 stop5h 11m

Portland

Tue 1/9

8:08 a.m.-11:46 p.m.

1 stop15h 38m

C$ 577

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Tue 5/1

3:00 p.m.-9:27 p.m.

1 stop6h 27m

Portland

Fri 8/1

9:45 a.m.-7:34 p.m.

1 stop9h 49m

C$ 586

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Fri 11/9

10:15 a.m.-9:23 p.m.

1 stop11h 08m

Portland

Fri 18/9

6:00 a.m.-8:44 p.m.

1 stop14h 44m

C$ 593

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Tue 8/9

6:00 a.m.-1:16 p.m.

2 stops31h 16m

Portland

Fri 11/9

6:30 a.m.-6:55 a.m.

2 stops24h 25m

C$ 626

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Tue 20/10

9:44 a.m.-2:38 p.m.

1 stop4h 54m

Portland

Sat 24/10

9:50 a.m.-2:19 p.m.

1 stop4h 29m

C$ 628

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Tue 25/8

1:00 p.m.-9:23 p.m.

1 stop8h 23m

Portland

Sat 5/9

3:45 p.m.-10:23 p.m.

1 stop6h 38m

C$ 628

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/7

Showing 1-10 of 36 resultsSorted by cheapest first
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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.

Cheapflights Insights

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

No data available for this route at this time. Please check back soon.

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.

  • How long is the flight from Region of Ontario to Portland, Maine?

    A quick flight from Region of Ontario to Portland, Maine can take about 4h 18m. Delta provides one of the quickest options available for as low as C$ 546. The distance between Region of Ontario and Portland, Maine is about 748 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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 Portland?

Book flights to Portland 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 airline flying from Ontario to Portland

Discover the top airline 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 2 August 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 492AverageC$ 868FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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?

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

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