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Cheap flights from Oregon to Ontario from C$ 188

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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — YYZ
30 Aug — 6 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Oregon to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Oregon to Ontario
Explore the most affordable flight options available from Oregon to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2026.

Sat 29/810:10 a.m.
PDX
-
YYZ
2 stops11h 48m
Air Canada
Sat 5/97:45 a.m.
YYZ
-
PDX
2 stops10h 06m
Air Canada
Deal found 30/7C$ 464
Fri 18/97:45 p.m.
PDX
-
YYZ
1 stop8h 45m
Air Canada
Fri 25/98:00 a.m.
YYZ
-
PDX
2 stops14h 11m
Air Canada
Deal found 26/7C$ 470
Sat 26/910:43 a.m.
PDX
-
YYZ
1 stop7h 01m
United Airlines
Wed 30/94:18 p.m.
YYZ
-
PDX
1 stop7h 52m
United Airlines
Deal found 28/7C$ 481
Wed 16/910:10 a.m.
PDX
-
YUL
1 stop7h 35m
Air Canada
Tue 29/97:30 a.m.
YUL
-
PDX
1 stop10h 16m
Air Canada
Deal found 30/7C$ 483
Sat 12/95:00 a.m.
PDX
-
YYZ
1 stop7h 14m
United Airlines
Sat 19/910:45 a.m.
YYZ
-
PDX
1 stop7h 20m
United Airlines
Deal found 29/7C$ 487
Tue 25/85:00 a.m.
PDX
-
YYZ
1 stop7h 14m
United Airlines
Tue 1/910:45 a.m.
YYZ
-
PDX
2 stops10h 34m
United Airlines
Deal found 26/7C$ 488
Wed 26/87:16 a.m.
PDX
-
YYZ
1 stop10h 28m
Multiple Airlines
Wed 2/97:30 a.m.
YYZ
-
PDX
1 stop10h 21m
Multiple Airlines
Deal found 27/7C$ 490
Sat 29/811:34 p.m.
PDX
-
YYZ
2 stops10h 52m
American Airlines
Sat 5/91:15 p.m.
YYZ
-
PDX
1 stop7h 45m
American Airlines
Deal found 29/7C$ 495
Wed 9/97:15 p.m.
PDX
-
YUL
1 stop10h 01m
United Airlines
Thu 10/911:23 a.m.
YUL
-
PDX
2 stops12h 42m
United Airlines
Deal found 25/7C$ 497
Thu 12/117:10 p.m.
PDX
-
YYZ
1 stop8h 52m
Air Canada
Tue 17/112:30 p.m.
YYZ
-
PDX
1 stop9h 16m
Air Canada
Deal found 30/7C$ 498
Sat 10/1010:10 a.m.
PDX
-
YUL
1 stop7h 41m
Air Canada
Sat 17/108:30 a.m.
YUL
-
PDX
1 stop9h 21m
Air Canada
Deal found 30/7C$ 498
Thu 13/811:02 p.m.
PDX
-
YYZ
1 stop13h 44m
United Airlines
Tue 18/88:00 p.m.
YYZ
-
PDX
1 stop16h 50m
United Airlines
Deal found 27/7C$ 500

Find flight deals from Oregon to Ontario

Keep the following information in mind while searching for Oregon to Ontario flight deals. Data was last updated 31 July 2026.

Round-trip from

C$ 464

One-way from

C$ 188

Popular in

December

Cheapest in

August

Average price

C$ 568
Air Canada
  • Air Canada
  • 18/9-25/9
  • 4 total stops
  • 26h 22m total
  • Oregon to Ontario
Search Deals
WestJet
  • WestJet
  • 12/9
  • 1 total stop
  • 7h 35m total
  • Oregon to Ontario
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 59 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 40 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 Oregon to Ontario 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 31 July 2026.
Use the filters below to find and compare flights from Oregon to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Wed 9/9

11:02 p.m.-11:49 a.m.

1 stop9h 47m

Toronto Pearson Intl

Sat 12/9

3:00 p.m.-10:03 p.m.

1 stop10h 03m

C$ 481

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Sat 29/8

11:02 p.m.-11:49 a.m.

1 stop9h 47m

Toronto Pearson Intl

Sat 5/9

4:18 p.m.-9:05 p.m.

1 stop7h 47m

C$ 483

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Sat 10/10

7:29 p.m.-8:16 a.m.

1 stop9h 47m

Montreal Pierre Elliott Trudeau Intl

Sat 17/10

8:00 a.m.-2:51 p.m.

2 stops9h 51m

C$ 497

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Thu 13/8

11:02 p.m.-3:46 p.m.

1 stop13h 44m

Toronto Pearson Intl

Tue 18/8

8:00 p.m.-9:50 a.m.

1 stop16h 50m

C$ 500

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Thu 13/8

11:20 p.m.-1:34 p.m.

1 stop11h 14m

Toronto Pearson Intl

Tue 18/8

6:15 a.m.-1:36 p.m.

1 stop10h 21m

C$ 501

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Mon 31/8

11:02 p.m.-3:46 p.m.

1 stop13h 44m

Toronto Pearson Intl

Wed 9/9

8:30 a.m.-2:46 p.m.

1 stop9h 16m

C$ 509

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Wed 30/9

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

1 stop15h 00m

Montreal Pierre Elliott Trudeau Intl

Mon 5/10

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

1 stop8h 59m

C$ 511

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Sat 31/10

10:47 a.m.-9:17 p.m.

1 stop7h 30m

Montreal Pierre Elliott Trudeau Intl

Wed 4/11

9:15 a.m.-8:15 p.m.

1 stop14h 00m

C$ 512

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Tue 25/8

5:00 a.m.-3:14 p.m.

1 stop8h 14m

Toronto Pearson Intl

Mon 31/8

6:30 a.m.-7:24 p.m.

1 stop14h 54m

C$ 515

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Sat 29/8

12:24 p.m.-11:59 p.m.

1 stop9h 35m

Toronto Pearson Intl

Tue 1/9

10:45 a.m.-5:58 p.m.

1 stop9h 13m

C$ 515

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/7

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Oregon to Ontario

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

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

Currently, January is the cheapest month in which you can book a flight from Oregon to Region of Ontario (average of C$ 518). Flying from Oregon to Region of Ontario in December is currently the most expensive (average of C$ 860). 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.

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

Airfare is typical for this route at the moment.
Oregon to Region of Ontario flights typically cost between C$ 443 and C$ 782 in August.
The cheapest round-trip price found within the last 5 days was C$ 464 on Air Canada (29 Aug-5 Sep).

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

The best time to book flights from Oregon to Region of Ontario is 87 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Related info for your journey

Find useful and relevant information for your journey from Oregon to Ontario. 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 Oregon to Region of Ontario?

    For as low as C$ 481, United Airlines can have you in Region of Ontario from Oregon in 9h 47m. Oregon and Region of Ontario are separated by a distance of 3364 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    The cheapest airlines for a one-way flight from Oregon to Region of Ontario are WestJet (C$ 136), United Airlines (C$ 190), and Delta (C$ 200).

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Oregon to Region of Ontario (average of C$ 518). Flying from Oregon to Region of Ontario in December is currently the most expensive (average of C$ 860). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Oregon to Ontario

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Fly with Cheapflights

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How does Cheapflights help users find flights from Oregon to Ontario?

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

Cheapflights helps you find that perfect flight to Ontario from Oregon by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Oregon to Ontario, users can toggle the no change fees filter when performing a flight search.

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

Yes! Start tracking prices for Oregon to Ontario flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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