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$138+ Cheap flights from Ontario to Portland (PDX)

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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — PDX
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
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 December 12, 2025.

This Air Canada deal was found by Cheapflights users on 12/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/241:15 pmYUL - PDX
2 stops23h 00mAir Canada
Wed 12/317:00 pmPDX - YUL
1 stop8h 44mAir Canada
Deal found 12/9$462
This United Airlines deal was found by Cheapflights users on 12/11. 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 12/236:10 amYYZ - PDX
1 stop16h 33mUnited Airlines
Tue 12/307:45 pmPDX - YYZ
1 stop18h 07mUnited Airlines
Deal found 12/11$483
This United Airlines deal was found by Cheapflights users on 12/9. 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 12/248:25 amYUL - PDX
1 stop15h 23mUnited Airlines
Wed 12/3110:52 pmPDX - YUL
1 stop13h 24mUnited Airlines
Deal found 12/9$562
This United Airlines deal was found by Cheapflights users on 12/10. 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 12/156:30 amYYZ - PDX
1 stop15h 11mUnited Airlines
Mon 12/2211:59 pmPDX - YYZ
1 stop11h 21mUnited Airlines
Deal found 12/10$568
This United Airlines deal was found by Cheapflights users on 12/9. 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 12/235:40 pmYUL - PDX
1 stop19h 21mUnited Airlines
Wed 12/3110:52 pmPDX - YUL
1 stop13h 24mUnited Airlines
Deal found 12/9$605
This United Airlines deal was found by Cheapflights users on 12/9. 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 12/221:10 pmYUL - PDX
1 stop12h 30mUnited Airlines
Wed 12/3110:52 pmPDX - YUL
1 stop9h 46mUnited Airlines
Deal found 12/9$643
This Delta deal was found by Cheapflights users on 12/9. 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.
Mon 12/227:00 amYUL - PDX
2 stops16h 34mDelta
Wed 12/315:15 pmPDX - YUL
2 stops15h 43mDelta
Deal found 12/9$718
This United Airlines deal was found by Cheapflights users on 12/10. 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 12/114:10 pmYYZ - PDX
2 stops21h 53mUnited Airlines
Thu 12/187:00 amPDX - YYZ
1 stop12h 37mUnited Airlines
Deal found 12/10$725
This United Airlines deal was found by Cheapflights users on 12/9. 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.
Fri 12/1912:05 pmYYZ - PDX
2 stops13h 54mUnited Airlines
Sun 12/212:35 pmPDX - YYZ
1 stop17h 45mUnited Airlines
Deal found 12/9$738
This Air Canada deal was found by Cheapflights users on 12/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:30 amYUL - PDX
1 stop10h 10mAir Canada
Thu 1/19:50 amPDX - YUL
1 stop8h 05mAir Canada
Deal found 12/9$750
This FlightHub deal was found by Cheapflights users on 12/10. 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.
Thu 12/186:00 amYOW - PDX
2 stops15h 50mWestJet
Thu 12/2512:29 pmPDX - YOW
2 stops25h 24mWestJet
Deal found 12/10$762
This United Airlines deal was found by Cheapflights users on 12/9. 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 12/239:25 amYUL - PDX
2 stops16h 34mUnited Airlines
Thu 1/13:54 pmPDX - YUL
2 stops15h 26mUnited Airlines
Deal found 12/9$763

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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$243
(Kiwi.com)

One-way from

$138
(Kiwi.com)

Popular in

December

Cheapest in

July

Average price

$508
Provider with most accurate pricing for Toronto (YTO)-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Toronto (YTO)-Portland flights.
Search Deals
From Ontario to Portland
Search Deals
One-way flight from Ontario to Portland
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 12, 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 - PDX

YYZPDX

Toronto Pearson Intl

Fri 1/9

7:55 pm-4:31 pm

1 stop23h 36m

Portland

Mon 1/12

6:34 pm-7:55 pm

1 stop22h 21m

$267

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Sun 1/25

7:55 pm-11:18 am

1 stop18h 23m

Portland

Sun 2/1

11:09 am-6:43 am

1 stop16h 34m

$274

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Wed 1/14

4:45 pm-10:46 pm

1 stop9h 01m

Portland

Mon 1/19

6:19 pm-6:47 am

1 stop9h 28m

$277

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Tue 3/3

3:45 pm-12:38 pm

2 stops23h 53m

Portland

Wed 3/4

3:50 pm-7:30 am

1 stop12h 40m

$282

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Wed 1/21

4:45 pm-10:46 pm

1 stop9h 01m

Portland

Sat 1/24

1:38 pm-3:35 pm

1 stop22h 57m

$283

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Fri 1/23

6:00 am-8:24 pm

1 stop17h 24m

Portland

Fri 1/30

6:00 am-4:03 pm

1 stop7h 03m

$283

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Fri 1/23

3:45 pm-10:53 pm

1 stop10h 08m

Portland

Mon 1/26

11:05 pm-11:48 am

1 stop9h 43m

$283

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Fri 1/23

6:00 am-8:24 pm

1 stop17h 24m

Portland

Sat 1/31

10:15 pm-11:08 am

1 stop9h 53m

$283

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Wed 1/7

12:45 pm-9:49 pm

1 stop12h 04m

Portland

Wed 1/14

7:00 am-11:59 pm

1 stop13h 59m

$283

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Thu 1/22

3:45 pm-10:53 pm

1 stop10h 08m

Portland

Sun 1/25

11:05 pm-11:48 am

1 stop9h 43m

$284

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 60 results
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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

What is the cheapest month to book a flight from Region of Ontario to Portland?

Currently, September is the cheapest month in which you can book a flight from Region of Ontario to Portland (average of $157). Flying from Region of Ontario to Portland in December is currently the most expensive (average of $284). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ON to PDX?

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 December 12, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 58% on flights from Region of Ontario to Portland by exploring options for tickets in the evening.

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 (PDX) is just 6.0 mi from the center of the city.

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

    Departing from Region of Ontario to Portland will take you 10h 10m. There are 2325 mi between Region of Ontario and Portland. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Region of Ontario to Portland one-way?

    $158 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on Alaska Airlines and American Airlines, with prices starting from $165 and $166, respectively.

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

    When deciding which route to take from Region of Ontario to Portland consider Montreal Pierre Elliott Trudeau Intl - Portland, Toronto Pearson Intl - Portland or Toronto Island - Portland as they are the most popular.

  • 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.

  • What is the cheapest month to book a flight from Region of Ontario to Portland?

    Currently, September is the cheapest month in which you can book a flight from Region of Ontario to Portland (average of $157). Flying from Region of Ontario to Portland in December is currently the most expensive (average of $284). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Vancouver
Seaside
Clackamas
Lincoln City
Lake Oswego
Beaverton
McMinnville
Hillsboro
Troutdale
Cannon Beach
Long Beach
Longview
Tigard
The Dalles
Depoe Bay
Stevenson
Wilsonville
Pacific City
Tillamook
Gresham

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Portland

See prices for flight routes from nearby airports that may be better suited for you.
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Pierre Elliott Trudeau Intl to Portland flights
Pearson Intl to Portland flights
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Pierre Elliott Trudeau Intl to Boise flights
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London to Portland flights

Top 5 airlines flying from Ontario to Portland

Discover the top 5 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 2,558,603 searches. Data last updated December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$150Average$430FlexibilityNo cancel feeOn-time67%
DeltaCheapest$170Average$419FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$282Average$396FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$284Average$387FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$286Average$388FlexibilityNo cancel feeOn-time75%

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