Find flights
When to book
FAQs

Cheap flights from Portland to Ontario from C$ 223

PDX — YYZ
23 Nov — 30 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portland to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Portland to Ontario

Sun 8/115:05 a.m. -
1 stop8h 00m
Mon 16/115:15 p.m. -
1 stop8h 45m
Deal found 22/10C$ 489
Thu 12/116:08 a.m. -
1 stop6h 57m
Wed 9/125:15 p.m. -
1 stop7h 37m
Deal found 21/10C$ 527
Fri 13/115:05 a.m. -
1 stop8h 00m
Tue 17/115:15 p.m. -
1 stop9h 39m
Deal found 24/10C$ 529
Thu 19/1112:02 p.m. -
2 stops27h 08m
Thu 26/119:50 a.m. -
1 stop9h 50m
Deal found 22/10C$ 555
Tue 27/107:05 a.m. -
2 stops9h 32m
Sat 31/108:30 a.m. -
2 stops13h 01m
Deal found 20/10C$ 563
Mon 16/113:15 p.m. -
1 stop7h 09m
Wed 18/118:00 a.m. -
2 stops9h 41m
Deal found 22/10C$ 570
Thu 26/111:52 p.m. -
2 stops20h 48m
Wed 2/129:50 a.m. -
1 stop9h 32m
Deal found 21/10C$ 571
Wed 28/107:00 a.m. -
1 stop6h 47m
Sun 1/116:15 a.m. -
2 stops11h 26m
Deal found 21/10C$ 577
Mon 9/117:10 p.m. -
1 stop8h 42m
Thu 19/1110:00 a.m. -
2 stops11h 31m
Deal found 22/10C$ 578
Wed 9/127:00 a.m. -
1 stop11h 42m
Mon 11/16:30 a.m. -
2 stops35h 33m
Deal found 21/10C$ 580
Wed 25/112:34 p.m. -
1 stop6h 25m
Tue 1/126:30 a.m. -
1 stop19h 15m
Deal found 21/10C$ 583
Sat 31/108:30 a.m. -
1 stop12h 22m
Wed 4/114:10 p.m. -
1 stop8h 03m
Deal found 22/10C$ 584

Find flight deals from Portland to Ontario

Round-trip from

C$ 489

One-way from

C$ 223

Popular in

December

Cheapest in

February

Average price

C$ 583
Alaska Airlines
  • Alaska Airlines
  • 8/11-16/11
  • 2 total stops
  • 16h 45m total
  • Portland to Ontario
Search Deals
Air Canada
  • Air Canada
  • 30/11-31/12
  • 1 total stop
  • 7h 09m total
  • Portland to Ontario
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 121 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Portland to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandToronto

PDX Portland - YYZ Toronto Pearson Intl

PDXYYZ

Portland

Wed 11/11

5:00 a.m.-4:15 p.m.

1 stop8h 15m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 251
Quickest round-trip

PortlandToronto

PDX Portland - YYZ Toronto Pearson Intl

PDXYYZ

Portland

Thu 5/11

5:30 a.m.-4:08 p.m.

1 stop7h 38m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 251

PortlandToronto

PDX Portland - YYZ Toronto Pearson Intl

PDXYYZ

Portland

Fri 30/10

7:37 p.m.-4:05 p.m.

1 stop17h 28m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 251

PortlandToronto

PDX Portland - YYZ Toronto Pearson Intl

PDXYYZ

Portland

Sun 6/12

11:13 p.m.-1:04 p.m.

2 stops10h 51m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 255

PortlandToronto

PDX Portland - YYZ Toronto Pearson Intl

PDXYYZ

Portland

Wed 11/11

7:35 p.m.-8:55 a.m.

2 stops10h 20m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 259

PortlandToronto

PDX Portland - YYZ Toronto Pearson Intl

PDXYYZ

Portland

Wed 4/11

9:00 a.m.-11:59 p.m.

2 stops11h 59m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 259

PortlandToronto

PDX Portland - YYZ Toronto Pearson Intl

PDXYYZ

Portland

Fri 18/12

5:45 a.m.-11:07 p.m.

2 stops14h 22m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 266

PortlandOttawa

PDX Portland - YOW Ottawa

PDXYOW

Portland

Wed 9/12

1:57 p.m.-11:33 a.m.

3 stops18h 36m

Ottawa

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 413

PortlandOttawa

PDX Portland - YOW Ottawa

PDXYOW

Portland

Wed 9/12

11:39 p.m.-5:56 p.m.

2 stops15h 17m

Ottawa

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 468

PortlandOttawa

PDX Portland - YOW Ottawa

PDXYOW

Portland

Wed 9/12

7:00 a.m.-9:16 p.m.

1 stop11h 16m

Ottawa

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 546

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/10

Showing 1-10 of 46 resultsSorted by cheapest first
1
2
3
...
5

Best time to book a flight from Portland to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Portland with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Portland to Ontario

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

Currently, August is the cheapest month in which you can book a flight from Portland to Region of Ontario (average of C$ 538). Flying from Portland to Region of Ontario in December is currently the most expensive (average of C$ 835). 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 Portland to Region of Ontario?

Airfare is typical for this route at the moment.
Portland to Region of Ontario flights typically cost between C$ 380 and C$ 826 in November.
The cheapest round-trip price found within the last 5 days was C$ 489 on Alaska Airlines (8 Nov-16 Nov).

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

The price you pay for your flight from Portland to Region of Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 85 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Related info for your journey

  • What airport do you fly from for flights from Portland to Ontario?

    Most people fly from Portland (PDX) if they book a flight from Portland to Ontario. Portland is conveniently located just 9.7 km from Portland’s city centre.

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

    United Airlines, American Airlines, and Delta can get you from Portland to Region of Ontario in just under 7h 17m. Your travel time can differ by up to 3h 35m. Portland and Region of Ontario are separated by a distance of 3364 km. Both multi-stop and direct flights can be found to your destination and back.

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

    The cheapest airlines for a one-way flight from Portland to Region of Ontario are WestJet (C$ 136), United Airlines (C$ 190), and Alaska Airlines (C$ 320).

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

    While some choose either Portland - Montreal Pierre Elliott Trudeau Intl or Portland - Toronto Island, Portland - Toronto Pearson Intl is the most popular route from Portland to Region of Ontario.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Portland to Region of Ontario (average of C$ 538). Flying from Portland to Region of Ontario in December is currently the most expensive (average of C$ 835). 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

Fly with Cheapflights

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

Cheapflights makes it easy to find Portland to Ontario 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 Portland to Ontario?

Cheapflights helps you find that perfect flight to Ontario from Portland 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 Portland to Ontario with no change fees?

Certainly. Search results for flights to Ontario from Portland shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

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

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.