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$127+ Cheap flights from Portland (PDX) to Ontario

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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — YYZ
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
1 adult, Economy
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Cheap flight deals from Portland to Ontario

Cheapest flights from Portland to Ontario
Explore the most affordable flight options available from Portland to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 12, 2025.

This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/267:00 pmPDX - YYZ
1 stop7h 59mAir Canada
vie. 1/98:15 amYYZ - PDX
2 stops9h 25mAir Canada
Deal found 12/10$332
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/247:00 pmPDX - YYZ
2 stops13h 40mAir Canada
jue. 1/88:15 amYYZ - PDX
2 stops9h 25mAir Canada
Deal found 12/10$337
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.
jue. 12/257:45 pmPDX - YYZ
1 stop8h 45mUnited Airlines
mar. 1/69:00 pmYYZ - PDX
1 stop17h 57mUnited Airlines
Deal found 12/11$341
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/243:15 pmPDX - YYZ
2 stops11h 23mAir Canada
vie. 1/99:00 amYYZ - PDX
1 stop12h 30mAir Canada
Deal found 12/10$351
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/267:00 pmPDX - YYZ
1 stop7h 59mAir Canada
mar. 1/69:50 pmYYZ - PDX
2 stops14h 25mAir Canada
Deal found 12/10$358
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/243:15 pmPDX - YYZ
2 stops11h 23mAir Canada
mar. 1/69:50 pmYYZ - PDX
2 stops14h 25mAir Canada
Deal found 12/10$363
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/217:00 pmPDX - YYZ
1 stop7h 59mAir Canada
jue. 1/88:15 amYYZ - PDX
2 stops9h 25mAir Canada
Deal found 12/10$375
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/287:00 pmPDX - YYZ
1 stop15h 05mAir Canada
mié. 1/79:50 pmYYZ - PDX
2 stops14h 25mAir Canada
Deal found 12/11$377
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/313:02 pmPDX - YYZ
1 stop16h 54mAmerican Airlines
mié. 1/76:14 amYYZ - PDX
1 stop19h 03mAmerican Airlines
Deal found 12/11$380
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.
mar. 12/167:00 amPDX - YYZ
1 stop9h 45mUnited Airlines
lun. 1/510:00 amYYZ - PDX
1 stop13h 45mUnited Airlines
Deal found 12/10$384
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.
mié. 12/3110:52 pmPDX - YUL
1 stop17h 56mUnited Airlines
mar. 1/203:00 pmYUL - PDX
1 stop9h 49mUnited Airlines
Deal found 12/10$402
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/189:50 amPDX - YUL
1 stop8h 10mAir Canada
jue. 1/159:00 amYUL - PDX
1 stop8h 40mAir Canada
Deal found 12/10$514

Find flight deals from Portland to Ontario

Keep the following information in mind while searching for Portland to Ontario flight deals. Data was last updated diciembre 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$279
(Mytrip)

One-way from

$127
(Alaska Airlines)

Popular in

December

Cheapest in

August

Average price

$580
Provider with most accurate pricing for Portland-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Toronto (YTO) flights.
Search Deals
From Portland to Ontario
Search Deals
One-way flight from Portland to Ontario
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($13 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 Portland 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 2,558,603 searches. Data last updated diciembre 12, 2025.
Use the filters below to find and compare flights from Portland to Ontario that are best for you.

Fly from

Portland

Fly to

Ontario

Route

Depart

Return

Price

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

lun. 2/23

6:00 am-3:35 pm

1 stop6h 35m

Toronto Pearson Intl

vie. 2/27

4:45 pm-10:41 pm

1 stop8h 56m

$309

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

jue. 1/8

2:38 pm-3:35 pm

1 stop21h 57m

Toronto Pearson Intl

sáb. 1/17

4:45 pm-10:46 pm

1 stop9h 01m

$309

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

lun. 1/5

10:52 pm-6:57 pm

1 stop17h 05m

Toronto Pearson Intl

mar. 1/6

9:00 pm-11:57 am

1 stop17h 57m

$317

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

lun. 2/23

7:05 pm-6:29 am

1 stop8h 24m

Toronto Pearson Intl

vie. 2/27

8:15 am-2:40 pm

2 stops9h 25m

$332

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

lun. 1/5

10:52 pm-2:14 pm

1 stop12h 22m

Toronto Pearson Intl

jue. 1/8

3:45 pm-10:53 pm

1 stop10h 08m

$341

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

lun. 1/5

10:52 pm-2:14 pm

1 stop12h 22m

Toronto Pearson Intl

mié. 1/7

9:00 am-6:56 pm

1 stop12h 56m

$341

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

mié. 1/7

5:00 am-3:02 pm

1 stop7h 02m

Toronto Pearson Intl

vie. 1/9

9:00 am-6:56 pm

1 stop12h 56m

$341

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

lun. 1/5

10:52 pm-2:14 pm

1 stop12h 22m

Toronto Pearson Intl

lun. 1/12

5:30 pm-10:32 pm

1 stop8h 02m

$341

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

sáb. 1/10

11:05 pm-11:48 am

1 stop9h 43m

Toronto Pearson Intl

jue. 1/15

12:45 pm-9:49 pm

1 stop12h 04m

$341

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

lun. 1/5

10:52 pm-6:57 pm

1 stop17h 05m

Toronto Pearson Intl

sáb. 1/10

3:45 pm-10:53 pm

1 stop10h 08m

$341

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 59 results
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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
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 Portland to Ontario

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

Currently, December is the cheapest month in which you can book a flight from Portland to Region of Ontario (average of $90). Flying from Portland to Region of Ontario in February is currently the most expensive (average of $377). 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 PDX to ON?

Find hourly flight availability from Portland to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated diciembre 12, 2025.

One of the essential ways to save on airfare from Portland to Region of Ontario is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 36% on airfare.

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

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

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

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated diciembre 12, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Portland to Ontario have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,007 reviews

Overall

7.9

Boarding

8.1

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,007 reviews
Delta
7.9
Good
8,007 reviews

Overall

7.9

Boarding

8.1

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,095 reviews
Delta
7.9
Good
8,007 reviews

Overall

7.9

Boarding

8.1

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,050 reviews
Delta
7.9
Good
8,007 reviews

Overall

7.9

Boarding

8.1

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
WestJet
7.2
Good
3,195 reviews
Delta
7.9
Good
8,007 reviews

Overall

7.9

Boarding

8.1

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Canada
7.1
Good
10,516 reviews
Delta
7.9
Good
8,007 reviews

Overall

7.9

Boarding

8.1

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Portland to Ontario. 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 from for flights from Portland to Ontario?

    Located just 6.0 mi from the city center, Portland (PDX) is the airport most travelers will use when flying to Ontario from Portland.

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

    Alaska Airlines, United Airlines, and Air Canada can get you from Portland to Region of Ontario in just under 6h 35m. Your travel time can differ by up to 10h 30m. There are 2090 mi between Portland and Region of Ontario. This flight may include one or multiple stops.

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

    $90 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on WestJet and United Airlines, with prices starting from $105 and $117, respectively.

  • 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, December is the cheapest month in which you can book a flight from Portland to Region of Ontario (average of $90). Flying from Portland to Region of Ontario in February is currently the most expensive (average of $377). 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 Portland to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Eugene to Ottawa flights
Boise to Halifax flights
Portland to Williams Lake flights
Medford to Hamilton flights
Boise to Québec City flights
Yakima to Edmonton flights

Top 6 airlines flying from Portland to Ontario

Discover the top 6 airlines that operate flights from Portland to Ontario. 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 diciembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$180Average$426FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$214Average$363FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$240Average$620FlexibilityNo cancel feeOn-time67%
Alaska AirlinesCheapest$308Average$447FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$321Average$557FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$321Average$576FlexibilityNo cancel feeOn-time69%

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