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$201+ 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — PWM
Sep 4 — Sep 111
Fri 9/4
Fri 9/11
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 August 5, 2026.

This American Airlines deal was found by Cheapflights users on 8/3. 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 9/52:15 pm -
1 stop8h 00m
Fri 9/116:00 am -
1 stop7h 38m
Deal found 8/3$417
This oojo deal was found by Cheapflights users on 8/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/54:10 pm -
1 stop23h 51m
Fri 9/1111:50 am -
2 stops12h 20m
Deal found 8/3$430
This oojo deal was found by Cheapflights users on 8/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:00 am -
1 stop10h 02m
Mon 11/212:42 pm -
1 stop20h 07m
Deal found 8/4$437
This FlightHub deal was found by Cheapflights users on 8/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/255:05 pm -
1 stop17h 16m
Sat 9/56:10 am -
2 stops24h 45m
Deal found 8/1$443
This United Airlines deal was found by Cheapflights users on 8/4. 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 10/202:45 pm -
1 stop7h 09m
Sat 10/248:03 am -
1 stop5h 44m
Deal found 8/4$446
This United Airlines deal was found by Cheapflights users on 8/4. 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 9/199:44 am -
1 stop4h 54m
Sat 9/268:03 am -
1 stop14h 20m
Deal found 8/4$447
This United Airlines deal was found by Cheapflights users on 8/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:00 am -
1 stop10h 23m
Sun 9/136:00 am -
1 stop5h 49m
Deal found 8/1$463
This American Airlines deal was found by Cheapflights users on 7/31. 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 10/95:29 pm -
1 stop6h 17m
Wed 10/146:00 am -
1 stop7h 43m
Deal found 7/31$468
This American Airlines deal was found by Cheapflights users on 7/31. 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.
Thu 9/37:29 am -
1 stop5h 11m
Tue 9/85:30 am -
1 stop11h 48m
Deal found 7/31$469
This American Airlines deal was found by Cheapflights users on 7/31. 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.
Sun 8/3011:01 am -
1 stop12h 46m
Sun 9/66:00 am -
1 stop7h 26m
Deal found 7/31$470
This American Airlines deal was found by Cheapflights users on 7/31. 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 -
2 stops13h 16m
Fri 8/281:30 pm -
1 stop20h 16m
Deal found 7/31$479
This American Airlines deal was found by Cheapflights users on 8/1. 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.
Sat 9/1210:30 am -
2 stops11h 15m
Sat 9/192:51 pm -
1 stop18h 58m
Deal found 8/1$492

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 August 5, 2026.

Round-trip from

$417
(American Airlines)

One-way from

$201
(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 August 5, 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 9/5

4:10 pm-4:01 pm

1 stop23h 51m

Portland

Fri 9/11

11:50 am-12:10 am

2 stops12h 20m

$430

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Tue 10/20

2:45 pm-9:54 pm

1 stop7h 09m

Portland

Sat 10/24

8:03 am-1:47 pm

1 stop5h 44m

$446

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Tue 8/25

1:00 pm-9:23 pm

1 stop8h 23m

Portland

Sat 9/5

3:45 pm-10:23 pm

1 stop6h 38m

$448

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Thu 9/3

7:29 am-12:40 pm

1 stop5h 11m

Portland

Tue 9/8

5:30 am-5:18 pm

1 stop11h 48m

$469

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Fri 9/18

5:27 pm-11:45 pm

1 stop6h 18m

Portland

Fri 9/25

6:00 am-11:59 am

1 stop5h 59m

$478

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Fri 8/21

10:31 am-11:47 pm

2 stops13h 16m

Portland

Fri 8/28

1:30 pm-9:46 am

1 stop20h 16m

$479

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Thu 10/1

6:15 am-9:55 pm

1 stop15h 40m

Portland

Sun 10/4

5:15 am-10:18 am

1 stop5h 03m

$486

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Sat 9/12

10:30 am-9:45 pm

2 stops11h 15m

Portland

Sat 9/19

2:51 pm-9:49 am

1 stop18h 58m

$492

MontrealPortland

YUL - PWM

YULPWM

Montreal Pierre Elliott Trudeau Intl

Tue 9/15

10:30 am-11:59 pm

2 stops13h 29m

Portland

Tue 9/22

6:00 am-9:49 am

2 stops27h 49m

$497

TorontoPortland

YYZ - PWM

YYZPWM

Toronto Pearson Intl

Sat 9/19

7:00 pm-11:32 pm

1 stop4h 32m

Portland

Sat 9/26

5:15 am-11:59 pm

2 stops18h 44m

$506

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/3

Showing 1-10 of 39 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 7h 09m. 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
Lewiston
Brunswick
Conway

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