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Cheap flights from Ontario to Portland from C$ 190

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 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — PDX
11 Jan — 18 Jan1
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 12 December 2025.

Wed 24/121:15 p.m.YUL - PDX
2 stops23h 00mAir Canada
Wed 31/127:00 p.m.PDX - YUL
1 stop8h 44mAir Canada
Deal found 9/12C$ 637
Tue 23/126:10 a.m.YYZ - PDX
1 stop16h 33mUnited Airlines
Tue 30/127:45 p.m.PDX - YYZ
1 stop18h 07mUnited Airlines
Deal found 11/12C$ 666
Wed 24/128:25 a.m.YUL - PDX
1 stop15h 23mUnited Airlines
Wed 31/1210:52 p.m.PDX - YUL
1 stop13h 24mUnited Airlines
Deal found 9/12C$ 775
Mon 15/126:30 a.m.YYZ - PDX
1 stop15h 11mUnited Airlines
Mon 22/1211:59 p.m.PDX - YYZ
1 stop11h 21mUnited Airlines
Deal found 10/12C$ 783
Tue 23/125:40 p.m.YUL - PDX
1 stop19h 21mUnited Airlines
Wed 31/1210:52 p.m.PDX - YUL
1 stop13h 24mUnited Airlines
Deal found 9/12C$ 834
Mon 22/121:10 p.m.YUL - PDX
1 stop12h 30mUnited Airlines
Wed 31/1210:52 p.m.PDX - YUL
1 stop9h 46mUnited Airlines
Deal found 9/12C$ 887
Tue 23/127:45 a.m.YOW - PDX
1 stop9h 55mAir Canada
Sun 28/127:00 p.m.PDX - YOW
1 stop8h 43mAir Canada
Deal found 11/12C$ 965
Mon 22/127:00 a.m.YUL - PDX
2 stops16h 34mDelta
Wed 31/125:15 p.m.PDX - YUL
2 stops15h 43mDelta
Deal found 9/12C$ 990
Thu 11/124:10 p.m.YYZ - PDX
2 stops21h 53mUnited Airlines
Thu 18/127:00 a.m.PDX - YYZ
1 stop12h 37mUnited Airlines
Deal found 10/12C$ 1,000
Thu 25/127:45 a.m.YOW - PDX
1 stop9h 55mAir Canada
Sun 28/127:00 p.m.PDX - YOW
1 stop8h 43mAir Canada
Deal found 11/12C$ 1,009
Fri 19/1212:05 p.m.YYZ - PDX
2 stops13h 54mUnited Airlines
Sun 21/122:35 p.m.PDX - YYZ
1 stop17h 45mUnited Airlines
Deal found 9/12C$ 1,018
Thu 25/123:10 p.m.YOW - PDX
1 stop10h 29mUnited Airlines
Tue 30/1211:02 a.m.PDX - YOW
1 stop7h 16mUnited Airlines
Deal found 11/12C$ 1,027

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 12 December 2025.

Round-trip from

C$ 335

One-way from

C$ 190

Popular in

December

Cheapest in

July

Average price

C$ 701
14/1-19/1
  • 14/1-19/1
  • 3 total stops
  • 46h 39m total
  • Ontario to Portland
Search Deals
8/1
  • 8/1
  • 1 total stop
  • 16h 39m total
  • Ontario to Portland
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 23 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 629,999 searches. Data last updated 12 December 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 9/1

7:55 p.m.-4:31 p.m.

1 stop23h 36m

Portland

Mon 12/1

6:34 p.m.-7:55 p.m.

1 stop22h 21m

C$ 368

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Sun 25/1

7:55 p.m.-11:18 a.m.

1 stop18h 23m

Portland

Sun 1/2

11:09 a.m.-7:36 p.m.

2 stops29h 27m

C$ 372

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Wed 14/1

4:45 p.m.-10:46 p.m.

1 stop9h 01m

Portland

Mon 19/1

6:19 p.m.-6:47 a.m.

1 stop9h 28m

C$ 382

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Tue 3/3

3:45 p.m.-12:38 p.m.

2 stops23h 53m

Portland

Wed 4/3

3:50 p.m.-7:30 a.m.

1 stop12h 40m

C$ 389

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Wed 21/1

4:45 p.m.-10:46 p.m.

1 stop9h 01m

Portland

Sat 24/1

1:38 p.m.-3:35 p.m.

1 stop22h 57m

C$ 390

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Fri 23/1

6:00 a.m.-8:24 p.m.

1 stop17h 24m

Portland

Fri 30/1

6:00 a.m.-4:03 p.m.

1 stop7h 03m

C$ 390

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Wed 7/1

12:45 p.m.-9:49 p.m.

1 stop12h 04m

Portland

Wed 14/1

7:00 a.m.-11:59 p.m.

1 stop13h 59m

C$ 390

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Fri 23/1

6:00 a.m.-8:24 p.m.

1 stop17h 24m

Portland

Sat 31/1

10:15 p.m.-11:08 a.m.

1 stop9h 53m

C$ 390

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Thu 15/1

7:30 a.m.-2:40 p.m.

1 stop10h 10m

Portland

Thu 22/1

9:50 a.m.-8:55 p.m.

1 stop8h 05m

C$ 436

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Thu 15/1

8:10 a.m.-6:30 p.m.

2 stops13h 20m

Portland

Mon 19/1

9:50 a.m.-8:55 p.m.

1 stop8h 05m

C$ 450

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

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 C$ 217). Flying from Region of Ontario to Portland in December is currently the most expensive (average of C$ 392). 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 12 December 2025.

A simple way to save on the total cost of your ticket is to fly from Region of Ontario to Portland in the evening. If you’re flexible enough to do this you can expect to save up to 42% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Region of Ontario to Portland?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Portland. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Region of Ontario to Portland flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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?

    Located just 9.7 km from the city centre, Portland (PDX) is the airport most travelers will use when flying to Portland from Ontario.

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

    Departing from Region of Ontario to Portland will take you 10h 10m. Region of Ontario and Portland are separated by a distance of 3742 km. Both multi-stop and direct flights can be found to your destination and back.

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

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as C$ 148. However, be on the lookout for offers from American Airlines and Air Canada, as they are both options that can get you from Region of Ontario to Portland for a low price.

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

    Most travellers choose Montreal Pierre Elliott Trudeau Intl - Portland, Toronto Pearson Intl - Portland or Toronto Island - Portland when deciding on the best route from Region of Ontario to 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.

  • 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 C$ 217). Flying from Region of Ontario to Portland in December is currently the most expensive (average of C$ 392). 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

Travelling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Vancouver
Tillamook
Cannon Beach
Lincoln City

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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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Calgary to North Bend flights
Québec City to Eugene flights
Hamilton to Eugene flights
Region of Waterloo Intl to Eugene flights
Kamloops to Portland flights

Top 6 airlines flying from Ontario to Portland

Discover the top 6 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 629,999 searches. Data last updated 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 250AverageC$ 503FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 299AverageC$ 472FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Alaska AirlinesCheapestC$ 360AverageC$ 452FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
United AirlinesCheapestC$ 375AverageC$ 583FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 385AverageC$ 667FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 386AverageC$ 485FlexibilityNo cancel feeOn-timeN/A
Search Delta 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?

Cheapflights makes it easy to find Ontario to Portland flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Portland?

Millions of users choose and trust Cheapflights to book the best flight deals from Ontario to Portland for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Ontario to Portland with no change fees?

Yes, we can. To see specific flights from Ontario to Portland with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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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