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Portland

$232+ 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 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — PWM
Jun 2 — Jun 91
Tue 6/2
Tue 6/9
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 May 3, 2026.

This Delta deal was found by Cheapflights users on 4/28. 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.
Wed 5/2710:00 am
YYZ
-
PWM
1 stop13h 18m
Delta
Sun 6/76:00 am
PWM
-
YYZ
1 stop17h 40m
Delta
Deal found 4/28$381
This Delta deal was found by Cheapflights users on 4/29. 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.
Wed 5/272:30 pm
YYZ
-
PWM
1 stop8h 48m
Delta
Sat 5/306:02 am
PWM
-
YYZ
1 stop7h 38m
Delta
Deal found 4/29$387
This Delta deal was found by Cheapflights users on 4/28. 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 5/3012:05 pm
YYZ
-
PWM
1 stop12h 38m
Delta
Fri 6/51:18 pm
PWM
-
YYZ
1 stop10h 23m
Delta
Deal found 4/28$389
This American Airlines deal was found by Cheapflights users on 4/29. 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.
Tue 5/267:25 pm
YYZ
-
PWM
1 stop13h 28m
American Airlines
Tue 6/21:34 pm
PWM
-
YYZ
1 stop9h 31m
American Airlines
Deal found 4/29$390
This American Airlines deal was found by Cheapflights users on 5/1. 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.
Tue 6/93:18 pm
YYZ
-
PWM
1 stop17h 35m
American Airlines
Sat 6/1310:24 am
PWM
-
YYZ
1 stop8h 24m
American Airlines
Deal found 5/1$392
This Delta deal was found by Cheapflights users on 4/28. 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 6/26:00 am
YYZ
-
PWM
1 stop4h 23m
Delta
Wed 6/311:03 am
PWM
-
YYZ
1 stop12h 38m
Delta
Deal found 4/28$407
This Delta deal was found by Cheapflights users on 4/28. 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.
Thu 5/282:29 pm
YUL
-
PWM
1 stop8h 49m
Delta
Thu 6/41:18 pm
PWM
-
YUL
1 stop5h 35m
Delta
Deal found 4/28$411
This Delta deal was found by Cheapflights users on 4/29. 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.
Thu 5/282:30 pm
YYZ
-
PWM
1 stop8h 48m
Delta
Thu 6/45:51 pm
PWM
-
YYZ
1 stop5h 50m
Delta
Deal found 4/29$412
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/314:50 pm
YYZ
-
PWM
1 stop16h 22m
Multiple Airlines
Tue 6/94:44 pm
PWM
-
YYZ
2 stops27h 21m
Multiple Airlines
Deal found 4/28$414
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/294:50 pm
YYZ
-
PWM
1 stop16h 22m
Multiple Airlines
Tue 6/94:44 pm
PWM
-
YYZ
2 stops27h 21m
Multiple Airlines
Deal found 4/28$419
This Delta deal was found by Cheapflights users on 5/2. 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 6/62:29 pm
YUL
-
PWM
1 stop20h 04m
Delta
Tue 6/96:00 am
PWM
-
YUL
1 stop12h 54m
Delta
Deal found 5/2$422
This Delta deal was found by Cheapflights users on 5/2. 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.
Fri 5/227:44 pm
YUL
-
PWM
1 stop25h 04m
Delta
Tue 5/265:51 pm
PWM
-
YUL
1 stop14h 48m
Delta
Deal found 5/2$426

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 May 3, 2026.

Round-trip from

$381
(Delta)

One-way from

$232
(Delta)
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 May 3, 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

Fri 6/5

12:05 pm-12:43 am

1 stop12h 38m

Portland

Fri 6/12

1:12 pm-9:10 am

1 stop19h 58m

$381

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Fri 5/29

6:00 am-12:43 am

1 stop18h 43m

Portland

Thu 6/4

5:51 pm-9:10 am

1 stop15h 19m

$381

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Wed 5/27

12:05 pm-12:43 am

1 stop12h 38m

Portland

Sat 5/30

6:02 am-1:40 pm

1 stop7h 38m

$388

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Tue 7/7

6:00 am-4:50 pm

1 stop10h 50m

Portland

Wed 7/15

6:25 am-11:44 pm

1 stop17h 19m

$388

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Sat 5/30

12:05 pm-12:43 am

1 stop12h 38m

Portland

Sat 6/6

12:50 pm-5:21 pm

1 stop4h 31m

$407

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Thu 5/28

2:30 pm-11:18 pm

1 stop8h 48m

Portland

Thu 6/4

5:51 pm-11:41 pm

1 stop5h 50m

$412

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Sat 6/6

2:29 pm-10:33 am

1 stop20h 04m

Portland

Tue 6/9

6:00 am-6:54 pm

1 stop12h 54m

$422

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Wed 5/27

6:00 am-1:58 pm

1 stop7h 58m

Portland

Mon 6/8

1:12 pm-11:40 pm

1 stop10h 28m

$425

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Fri 5/22

7:44 pm-8:48 pm

1 stop25h 04m

Portland

Tue 5/26

5:51 pm-8:39 am

1 stop14h 48m

$426

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Thu 5/21

10:30 am-8:53 am

1 stop22h 23m

Portland

Sat 5/23

10:24 am-9:56 am

1 stop23h 32m

$428

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 45 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 8h 20m. There are 288 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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