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Portland

$213+ Cheap flights from Ontario to Portland, ME (PWM)

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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — PWM
Jul 18 — Jul 251
Sat 7/18
Sat 7/25
1 adult, Economy
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Cheap 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 June 18, 2026.

This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/48:45 am
YYZ
-
PWM
1 stop5h 46m
United Airlines
Fri 7/106:00 am
PWM
-
YYZ
1 stop13h 37m
United Airlines
Deal found 6/18$395
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/22:45 pm
YYZ
-
PWM
1 stop6h 56m
United Airlines
Wed 7/86:00 am
PWM
-
YYZ
1 stop5h 49m
United Airlines
Deal found 6/17$396
This United Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/242:45 pm
YYZ
-
PWM
1 stop6h 38m
United Airlines
Fri 8/285:03 pm
PWM
-
YYZ
1 stop7h 10m
United Airlines
Deal found 6/14$399
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/812:05 pm
YYZ
-
PWM
1 stop7h 24m
Delta
Fri 12/115:59 pm
PWM
-
YYZ
1 stop15h 32m
Delta
Deal found 6/15$413
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/157:43 pm
YYZ
-
PWM
1 stop4h 08m
United Airlines
Wed 7/226:00 am
PWM
-
YYZ
1 stop5h 49m
United Airlines
Deal found 6/16$425
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/142:30 pm
YYZ
-
PWM
1 stop4h 57m
United Airlines
Tue 7/216:00 am
PWM
-
YYZ
1 stop5h 49m
United Airlines
Deal found 6/16$426
This American Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/44:18 pm
YYZ
-
PWM
1 stop18h 13m
American Airlines
Fri 7/106:59 pm
PWM
-
YYZ
1 stop4h 51m
American Airlines
Deal found 6/16$431
This American Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1512:39 pm
YYZ
-
PWM
1 stop9h 54m
American Airlines
Wed 7/221:25 pm
PWM
-
YYZ
1 stop5h 20m
American Airlines
Deal found 6/16$434
This Delta deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/612:05 pm
YYZ
-
PWM
1 stop7h 24m
Delta
Thu 12/106:00 am
PWM
-
YYZ
1 stop7h 39m
Delta
Deal found 6/14$438
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:00 am
YYZ
-
PWM
1 stop10h 23m
United Airlines
Sun 9/276:00 am
PWM
-
YYZ
1 stop5h 49m
United Airlines
Deal found 6/17$440
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/59:28 am
YUL
-
PWM
1 stop10h 01m
Delta
Tue 12/88:00 am
PWM
-
YUL
1 stop8h 05m
Delta
Deal found 6/15$453
This American Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2110:31 am
YUL
-
PWM
1 stop28h 36m
American Airlines
Fri 8/281:30 pm
PWM
-
YUL
1 stop20h 16m
American Airlines
Deal found 6/15$476

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 June 18, 2026.

Round-trip from

$395
(United Airlines)

One-way from

$213
(Kiwi.com)
From Ontario to Portland
Search Deals
One-way flight from 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 2,558,603 searches. Data last updated June 18, 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

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Sat 7/4

8:45 am-2:31 pm

1 stop5h 46m

Portland

Fri 7/10

6:00 am-7:37 pm

1 stop13h 37m

$395

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Mon 8/24

7:00 am-2:34 pm

1 stop7h 34m

Portland

Fri 8/28

5:03 pm-12:13 am

1 stop7h 10m

$395
Quickest round-trip

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Wed 7/15

7:43 pm-11:51 pm

1 stop4h 08m

Portland

Wed 7/22

5:15 am-10:04 am

1 stop4h 49m

$426

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Wed 9/23

11:00 am-9:23 pm

1 stop10h 23m

Portland

Sun 9/27

6:00 am-11:49 am

1 stop5h 49m

$440

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Sat 12/5

9:28 am-7:29 pm

1 stop10h 01m

Portland

Tue 12/8

8:00 am-4:05 pm

1 stop8h 05m

$453

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Thu 9/24

6:25 pm-11:59 pm

1 stop5h 34m

Portland

Sun 9/27

6:02 am-11:25 am

1 stop5h 23m

$456

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Tue 7/14

7:43 pm-11:51 pm

1 stop4h 08m

Portland

Sat 7/18

5:15 am-7:02 pm

1 stop13h 47m

$456

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Sat 8/29

6:55 pm-10:04 am

1 stop15h 09m

Portland

Mon 8/31

6:03 am-12:35 pm

1 stop6h 32m

$456

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Thu 10/15

7:00 am-2:38 pm

1 stop7h 38m

Portland

Wed 10/21

5:15 am-11:59 pm

2 stops18h 44m

$482

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Tue 7/14

10:30 am-12:35 pm

1 stop26h 05m

Portland

Tue 7/21

12:01 pm-9:48 am

1 stop21h 47m

$486

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

Showing 1-10 of 43 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?

    Portland (PWM) is the airport you will fly into if you book a flight from Ontario to Portland. It is only a 2.9 mi journey from Portland (PWM) to Portland’s city center.

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

    Departing from Region of Ontario to Portland, Maine will take you 5h 46m. There are 465 mi between Region of Ontario and Portland, Maine. This flight may include one or multiple stops.

  • What are the most popular routes from Region of Ontario to Portland, Maine?

    The most popular flight routes from Region of Ontario to Portland, Maine are Montreal Pierre Elliott Trudeau Intl - Portland, Toronto Pearson Intl - Portland and Ottawa - Portland.

  • 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

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Brunswick
Lewiston
Conway

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