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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 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — YYZ
avr. 9 — avr. 161
jeu. 4/9
jeu. 4/16
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 mars 10, 2026.

This Trip.com deal was found by Cheapflights users on 3/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/262:30 pm
PDX
-
YYZ
1 stop7h 35m
WestJet
mar. 6/29:00 am
YYZ
-
PDX
1 stop7h 50m
WestJet
Deal found 3/5$267
This Trip.com deal was found by Cheapflights users on 3/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 6/42:30 pm
PDX
-
YYZ
1 stop7h 35m
WestJet
mar. 6/97:00 am
YYZ
-
PDX
1 stop9h 50m
WestJet
Deal found 3/5$270
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/112:30 pm
PDX
-
YYZ
1 stop7h 35m
WestJet
mar. 5/197:00 am
YYZ
-
PDX
1 stop9h 50m
WestJet
Deal found 3/5$273
This FlightHub deal was found by Cheapflights users on 3/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 5/132:30 pm
PDX
-
YYZ
2 stops11h 40m
WestJet
dim. 5/176:10 am
YYZ
-
PDX
2 stops10h 40m
WestJet
Deal found 3/5$276
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 7/32:30 pm
PDX
-
YYZ
1 stop7h 35m
WestJet
mar. 7/219:00 am
YYZ
-
PDX
1 stop7h 50m
WestJet
Deal found 3/5$281
This FlightHub deal was found by Cheapflights users on 3/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/22:30 pm
PDX
-
YYZ
2 stops11h 40m
WestJet
mer. 6/107:00 am
YYZ
-
PDX
1 stop9h 50m
WestJet
Deal found 3/5$288
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 6/52:30 pm
PDX
-
YYZ
1 stop7h 35m
WestJet
ven. 6/125:20 pm
YYZ
-
PDX
2 stops23h 30m
WestJet
Deal found 3/6$296
This United Airlines deal was found by Cheapflights users on 3/6. 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.
lun. 4/611:15 pm
PDX
-
YUL
1 stop10h 54m
United Airlines
mar. 4/75:00 pm
YUL
-
PDX
1 stop8h 34m
United Airlines
Deal found 3/6$345
This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 4/247:05 pm
PDX
-
YTZ
2 stops12h 20m
Air Canada
ven. 5/13:35 pm
YTZ
-
PDX
2 stops10h 03m
Air Canada
Deal found 3/9$352
This FlightHub deal was found by Cheapflights users on 3/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 6/42:30 pm
PDX
-
YOW
1 stop12h 05m
WestJet
mar. 6/96:55 am
YOW
-
PDX
2 stops9h 55m
WestJet
Deal found 3/5$369
This American Airlines deal was found by Cheapflights users on 3/5. 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.
ven. 4/243:16 pm
PDX
-
YUL
1 stop17h 28m
American Airlines
lun. 4/2712:30 pm
YUL
-
PDX
1 stop14h 27m
American Airlines
Deal found 3/5$369
This United Airlines deal was found by Cheapflights users on 3/5. 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.
dim. 4/2611:59 pm
PDX
-
YUL
1 stop18h 27m
United Airlines
ven. 5/19:15 am
YUL
-
PDX
1 stop14h 27m
United Airlines
Deal found 3/5$379

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 mars 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$296
(Kiwi.com)

One-way from

$127
(CheapOair)

Popular in

December

Cheapest in

August

Average price

$541
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
Highest demand for flights based on searches. 0% potential increase in price ($4 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 mars 10, 2026.
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 - YYZ

PDXYYZ

Portland

lun. 7/6

11:40 pm-9:54 am

1 stop7h 14m

Toronto Pearson Intl

sam. 7/18

1:00 pm-11:53 pm

1 stop13h 53m

$344

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

jeu. 5/14

9:39 pm-12:19 pm

1 stop11h 40m

Toronto Pearson Intl

dim. 5/17

2:20 pm-9:52 pm

1 stop10h 32m

$344

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

jeu. 4/2

7:05 pm-3:14 pm

1 stop17h 09m

Toronto Pearson Intl

mer. 4/15

1:00 pm-6:34 pm

1 stop8h 34m

$344

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

lun. 4/13

11:15 pm-11:43 am

1 stop9h 28m

Toronto Pearson Intl

mer. 4/15

6:10 am-12:34 pm

1 stop9h 24m

$344

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

sam. 3/28

11:59 pm-11:49 am

1 stop8h 50m

Toronto Pearson Intl

mar. 4/7

10:45 am-6:07 pm

2 stops10h 22m

$350

PortlandToronto

PDX - YTZ

PDXYTZ

Portland

ven. 4/24

7:05 pm-10:25 am

2 stops12h 20m

Toronto Island

ven. 5/1

3:35 pm-10:38 pm

2 stops10h 03m

$352

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

sam. 5/23

5:00 am-9:32 pm

1 stop13h 32m

Toronto Pearson Intl

mer. 6/10

5:15 pm-11:53 pm

1 stop9h 38m

$366

PortlandOttawa

PDX - YOW

PDXYOW

Portland

jeu. 6/4

2:30 pm-5:35 am

1 stop12h 05m

Ottawa

mar. 6/9

6:55 am-1:50 pm

2 stops9h 55m

$369

PortlandMontreal

PDX - YUL

PDXYUL

Portland

dim. 4/26

11:59 pm-9:26 pm

1 stop18h 27m

Montreal Pierre Elliott Trudeau Intl

ven. 5/1

9:15 am-8:42 pm

1 stop14h 27m

$379

PortlandToronto

PDX - YTZ

PDXYTZ

Portland

mar. 4/28

7:05 pm-10:25 am

2 stops12h 20m

Toronto Island

ven. 5/1

6:55 pm-2:45 pm

2 stops22h 50m

$386

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/5

Showing 1-10 of 60 resultsSorted by cheapest first
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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, July is the cheapest month in which you can book a flight from Portland to Region of Ontario (average of $144). Flying from Portland to Region of Ontario in February is currently the most expensive (average of $342). 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.

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 mars 10, 2026.
See what other customers who have flown with Delta,United Airlines, andWestJet 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
8,276 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

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
8,276 reviews
Delta
7.9
Good
8,276 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

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
9,409 reviews
Delta
7.9
Good
8,276 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

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
3,288 reviews
Delta
7.9
Good
8,276 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

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
7.1
Good
11,415 reviews
Delta
7.9
Good
8,276 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

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
10,800 reviews
Delta
7.9
Good
8,276 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

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?

    United Airlines, Delta, and Air Canada can get you from Portland to Region of Ontario in just under 7h 14m. Your travel time can differ by up to 5h 06m. 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, July is the cheapest month in which you can book a flight from Portland to Region of Ontario (average of $144). Flying from Portland to Region of Ontario in February is currently the most expensive (average of $342). 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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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 mars 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$140Average$589FlexibilityNo cancel feeOn-time67%
DeltaCheapest$144Average$405FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$148Average$573FlexibilityNo cancel feeOn-time69%
WestJetCheapest$173Average$288FlexibilityNo cancel feeOn-time60%
American AirlinesCheapest$343Average$546FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$344Average$545FlexibilityNo cancel feeOn-time75%

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