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Cheap flights from Ontario to Oregon from C$ 233

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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — PDX
28 Aug — 4 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Oregon

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Oregon
Explore the most affordable flight options available from Ontario to Oregon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 July 2026.

Tue 13/107:30 a.m.
YUL
-
PDX
1 stop10h 21m
Air Canada
Sat 17/1010:10 a.m.
PDX
-
YUL
1 stop7h 41m
Air Canada
Deal found 24/7C$ 401
Fri 2/106:35 p.m.
YUL
-
PDX
1 stop8h 59m
United Airlines
Sat 17/107:02 a.m.
PDX
-
YUL
1 stop7h 28m
United Airlines
Deal found 25/7C$ 418
Fri 2/107:30 a.m.
YUL
-
PDX
1 stop10h 21m
Air Canada
Sat 17/1010:10 a.m.
PDX
-
YUL
1 stop7h 41m
Air Canada
Deal found 24/7C$ 419
Tue 13/106:35 p.m.
YUL
-
PDX
1 stop18h 40m
United Airlines
Sat 17/102:27 p.m.
PDX
-
YUL
1 stop17h 13m
United Airlines
Deal found 28/7C$ 422
Fri 11/96:30 a.m.
YYZ
-
BOI
1 stop10h 01m
American Airlines
Fri 18/93:21 p.m.
BOI
-
YYZ
1 stop19h 14m
American Airlines
Deal found 28/7C$ 423
Thu 27/87:30 a.m.
YUL
-
PDX
1 stop10h 21m
Air Canada
Sat 5/97:45 p.m.
PDX
-
YUL
1 stop7h 30m
Air Canada
Deal found 26/7C$ 426
Tue 25/812:47 p.m.
YUL
-
PDX
2 stops14h 09m
Delta
Sat 12/96:00 a.m.
PDX
-
YUL
2 stops14h 50m
Delta
Deal found 29/7C$ 428
Tue 22/96:30 a.m.
YYZ
-
BOI
1 stop11h 01m
United Airlines
Sat 26/96:25 a.m.
BOI
-
YYZ
1 stop6h 49m
United Airlines
Deal found 27/7C$ 429
Tue 22/912:48 p.m.
YUL
-
PDX
2 stops13h 52m
Delta
Tue 29/96:00 a.m.
PDX
-
YUL
2 stops14h 27m
Delta
Deal found 24/7C$ 429
Fri 21/87:29 a.m.
YUL
-
PDX
1 stop15h 19m
American Airlines
Sat 5/911:34 p.m.
PDX
-
YUL
1 stop9h 09m
American Airlines
Deal found 29/7C$ 430
Fri 21/89:45 a.m.
YUL
-
PDX
1 stop12h 08m
United Airlines
Sat 5/98:25 a.m.
PDX
-
YUL
1 stop8h 20m
United Airlines
Deal found 28/7C$ 432
Sun 6/96:00 a.m.
YUL
-
PDX
2 stops14h 34m
Delta
Sat 19/96:00 a.m.
PDX
-
YUL
2 stops14h 50m
Delta
Deal found 28/7C$ 436

Find flight deals from Ontario to Oregon

Keep the following information in mind while searching for Ontario to Oregon flight deals. Data was last updated 29 July 2026.

Round-trip from

C$ 401

One-way from

C$ 233

Popular in

July

Cheapest in

March

Average price

C$ 633
Air Canada
  • Air Canada
  • 13/10-17/10
  • 2 total stops
  • 18h 02m total
  • Ontario to Oregon
Search Deals
Air Canada
  • Air Canada
  • 5/9
  • 1 total stop
  • 8h 26m total
  • Ontario to Oregon
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Oregon 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 29 July 2026.
Use the filters below to find and compare flights from Ontario to Oregon that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Fri 2/10

6:35 p.m.-12:34 a.m.

1 stop8h 59m

Portland

Sat 17/10

7:02 a.m.-5:30 p.m.

1 stop7h 28m

C$ 418

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Tue 25/8

6:00 a.m.-10:03 p.m.

1 stop19h 03m

Portland

Sat 12/9

7:27 p.m.-8:16 a.m.

1 stop9h 49m

C$ 422

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Tue 25/8

12:47 p.m.-11:56 p.m.

2 stops14h 09m

Portland

Sat 12/9

6:00 a.m.-11:50 p.m.

2 stops14h 50m

C$ 428

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Sat 7/11

12:50 p.m.-11:44 p.m.

2 stops13h 54m

Portland

Tue 10/11

11:20 p.m.-11:57 a.m.

1 stop9h 37m

C$ 428

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Tue 13/10

9:45 a.m.-9:10 p.m.

2 stops14h 25m

Portland

Sat 17/10

5:00 a.m.-10:06 p.m.

2 stops14h 06m

C$ 428

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Sat 22/8

6:00 a.m.-10:03 p.m.

1 stop19h 03m

Portland

Sat 5/9

11:18 p.m.-4:10 p.m.

1 stop13h 52m

C$ 428

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Tue 22/9

6:30 a.m.-3:31 p.m.

1 stop11h 01m

Boise Air Term. Gowen Fld

Sat 26/9

6:25 a.m.-3:14 p.m.

1 stop6h 49m

C$ 429

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Sat 3/10

6:00 a.m.-9:27 p.m.

1 stop18h 27m

Portland

Fri 9/10

11:30 p.m.-5:30 p.m.

1 stop15h 00m

C$ 432

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Fri 21/8

9:45 a.m.-10:52 p.m.

1 stop16h 07m

Portland

Sat 29/8

11:02 p.m.-10:40 a.m.

1 stop8h 38m

C$ 432

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Mon 24/8

6:35 p.m.-12:37 a.m.

1 stop9h 02m

Portland

Sat 29/8

11:15 a.m.-8:16 a.m.

1 stop18h 01m

C$ 432

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/7

Showing 1-10 of 60 resultsSorted by cheapest first
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2
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6

Best time to book a flight from Ontario to Oregon

Have a flexible travel schedule? Discover the best time to fly to Oregon 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 Oregon

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

Currently, September is the cheapest month in which you can book a flight from Region of Ontario to Oregon (average of C$ 483). Flying from Region of Ontario to Oregon in March is currently the most expensive (average of C$ 633). 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 OR?

Find hourly flight availability from Ontario to Oregon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 July 2026.

When flying from Region of Ontario to Oregon, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Region of Ontario to Oregon?

Airfare is typical for this route at the moment.
Region of Ontario to Oregon flights typically cost between C$ 293 and C$ 523 in September.
The cheapest round-trip price found within the last 5 days was C$ 439 on Air Canada (1 Sep-7 Sep).

How far ahead should I book a flight from Region of Ontario to Oregon?

The price you pay for your flight from Region of Ontario to Oregon may vary depending on when you book. For the best chance of a lower fare, look to book 82 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Oregon

Get insights into the airlines that provide service to Oregon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Oregon. Reviews last updated 29 July 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andWestJet from Ontario to Oregon by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,486 reviews
Check prices

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
Delta
7.8
Good
8,486 reviews
Delta
7.8
Good
8,486 reviews
Check prices

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
United Airlines
7.4
Good
10,052 reviews
Delta
7.8
Good
8,486 reviews
Check prices

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
WestJet
7.2
Good
3,415 reviews
Delta
7.8
Good
8,486 reviews
Check prices

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
American Airlines
7.1
Good
11,839 reviews
Delta
7.8
Good
8,486 reviews
Check prices

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
Air Canada
7.1
Good
11,405 reviews
Delta
7.8
Good
8,486 reviews
Check prices

Entertainment

7.8

Food

7.2

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,

Related info for your journey

Find useful and relevant information for your journey from Ontario to Oregon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    A quick flight from Region of Ontario to Oregon can take about 8h 59m. United Airlines provides one of the quickest options available for as low as C$ 418. The distance between Region of Ontario and Oregon is about 3742 km. This flight may include one or multiple stops.

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

    The cheapest airlines for a one-way flight from Region of Ontario to Oregon are WestJet (C$ 173), Air Canada (C$ 203), and Delta (C$ 245).

  • Can I find deals for flights from Ontario to Oregon that include hotel bookings?

    Yes. In addition to deals on Ontario to Oregon flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Oregon?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Oregon.

  • Can I find deals for business class flights from Ontario to Oregon?

    Yes. Cheapflights offers flight deals from Ontario to Oregon 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 Oregon?

    Currently, September is the cheapest month in which you can book a flight from Region of Ontario to Oregon (average of C$ 483). Flying from Region of Ontario to Oregon in March is currently the most expensive (average of C$ 633). 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

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Alternative routes for Ontario to Oregon

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Ontario to Oregon

Discover the top 5 airlines that operate flights from Ontario to Oregon. 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 29 July 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 204AverageC$ 486FlexibilityNo cancel feeOn-time60%
Search WestJet flights
DeltaCheapestC$ 216AverageC$ 489FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 253AverageC$ 445FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 368AverageC$ 700FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 378AverageC$ 793FlexibilityNo cancel feeOn-time69%
Search United Airlines 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 Oregon?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Oregon from Ontario today with Cheapflights!

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ontario to Oregon for you. Better yet — we are completely free to use.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ontario to Oregon flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Ontario to Oregon become cheaper?

Not ready to book yet? You can track prices for flights from Ontario to Oregon on Cheapflights with our Price Alert feature and get notified when better prices are available.

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