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$75+ 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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — YYZ
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Portland to Ontario

Keep the following information in mind while searching for Portland to Ontario flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$187
(Kiwi.com)

One-way from

$75
(Kiwi.com)

Popular in

March

Cheapest in

May

Average price

$516
Provider with most accurate pricing for Portland-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for Portland-Toronto (YTO) flights.
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From Portland to Ontario
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One-way flight from Portland to Ontario
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($98 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find 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 February 20, 2025.

This Kiwi.com deal was found by Cheapflights users on 2/20. 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.
Tue 4/86:13 pmPDX - YYZ
1 stop9h 30mMultiple Airlines
Tue 4/228:00 pmYYZ - PDX
1 stop15h 22mMultiple Airlines
Deal found 2/20$187
This Mytrip deal was found by Cheapflights users on 2/20. 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.
Mon 3/38:28 pmPDX - YTZ
2 stops20h 22mMultiple Airlines
Tue 3/113:25 pmYTZ - PDX
2 stops25h 13mMultiple Airlines
Deal found 2/20$295
This Kiwi.com deal was found by Cheapflights users on 2/20. 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.
Sun 4/69:27 pmPDX - YOW
2 stops31h 53mMultiple Airlines
Sun 4/136:10 pmYOW - PDX
1 stop17h 12mMultiple Airlines
Deal found 2/20$338
This Mytrip deal was found by Cheapflights users on 2/18. 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.
Tue 4/111:15 amPDX - YUL
2 stops24h 40mMultiple Airlines
Wed 4/162:35 pmYUL - PDX
2 stops20h 47mMultiple Airlines
Deal found 2/18$349
This Delta deal was found by Cheapflights users on 2/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/135:40 amPDX - YYZ
1 stop7h 14mDelta
Wed 3/1912:15 pmYYZ - PDX
1 stop13h 17mDelta
Deal found 2/20$364
This Mytrip deal was found by Cheapflights users on 2/20. 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.
Fri 5/21:45 pmPDX - YYZ
1 stop7h 39mWestJet
Sun 5/48:00 amYYZ - PDX
1 stop7h 52mWestJet
Deal found 2/20$365
This American Airlines deal was found by Cheapflights users on 2/20. 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.
Tue 5/63:13 pmPDX - YYZ
1 stop16h 38mAmerican Airlines
Sat 5/173:10 pmYYZ - PDX
2 stops11h 48mAmerican Airlines
Deal found 2/20$400
This Kissandfly.com deal was found by Cheapflights users on 2/20. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/135:57 pmPDX - YYZ
2 stops12h 53mBritish Airways
Wed 3/196:11 amYYZ - PDX
1 stop18h 03mBritish Airways
Deal found 2/20$416
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/174:00 pmPDX - YYZ
1 stop19h 55mAlaska Airlines
Fri 3/214:20 pmYYZ - PDX
1 stop20h 31mAlaska Airlines
Deal found 2/19$418
This Gotogate deal was found by Cheapflights users on 2/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/56:00 amPDX - YUL
1 stop8h 03mAir Canada
Mon 3/102:20 pmYUL - PDX
2 stops10h 49mAir Canada
Deal found 2/20$442
This Justfly.com deal was found by Cheapflights users on 2/18. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/51:45 pmPDX - YUL
1 stop7h 58mWestJet
Sat 5/106:45 amYUL - PDX
2 stops33h 07mWestJet
Deal found 2/18$452
This American Airlines deal was found by Cheapflights users on 2/19. 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.
Mon 4/711:52 pmPDX - YUL
1 stop8h 52mAmerican Airlines
Mon 4/143:44 pmYUL - PDX
1 stop10h 03mAmerican Airlines
Deal found 2/19$469

Find flights from Portland to Ontario within your budget

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 February 20, 2025.

Fly from

Portland

Fly to

Ontario

Route

Depart

Return

Price

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Tue 4/8

6:13 pm-6:43 am

1 stop9h 30m

Toronto Pearson Intl

Tue 4/22

8:00 pm-8:22 am

1 stop15h 22m

$187

PortlandToronto

PDX - YTZ

PDXYTZ

Portland

Mon 3/3

8:28 pm-7:50 pm

2 stops20h 22m

Toronto Island

Tue 3/11

3:25 pm-1:38 pm

2 stops25h 13m

$295

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sun 4/6

9:27 pm-8:20 am

2 stops31h 53m

Ottawa

Sun 4/13

6:10 pm-8:22 am

1 stop17h 12m

$338

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Tue 4/1

11:15 am-2:55 pm

2 stops24h 40m

Montreal Pierre Elliott Trudeau Intl

Wed 4/16

2:35 pm-8:22 am

2 stops20h 47m

$349

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Thu 3/13

5:40 am-3:54 pm

1 stop7h 14m

Toronto Pearson Intl

Wed 3/19

12:15 pm-10:32 pm

1 stop13h 17m

$364

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Fri 5/2

1:45 pm-12:24 am

1 stop7h 39m

Toronto Pearson Intl

Sun 5/4

8:00 am-12:52 pm

1 stop7h 52m

$365

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Tue 5/6

3:13 pm-10:51 am

1 stop16h 38m

Toronto Pearson Intl

Sat 5/17

3:10 pm-11:58 pm

2 stops11h 48m

$400

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Thu 3/13

5:57 pm-9:50 am

2 stops12h 53m

Toronto Pearson Intl

Wed 3/19

6:11 am-9:14 pm

1 stop18h 03m

$416

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Mon 3/17

4:00 pm-2:55 pm

1 stop19h 55m

Toronto Pearson Intl

Fri 3/21

4:20 pm-9:51 am

1 stop20h 31m

$418

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Wed 3/5

6:00 am-5:03 pm

1 stop8h 03m

Montreal Pierre Elliott Trudeau Intl

Mon 3/10

2:20 pm-10:09 pm

2 stops10h 49m

$442

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 34 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.

Travel insights for flights from Portland to Ontario

Get recent, data-driven insights about flights from Portland to Ontario including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Portland to Region of Ontario (average of $243). Flying from Portland to Region of Ontario in July is currently the most expensive (average of $359). 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 February 20, 2025.

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

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

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 February 20, 2025.
See what other customers who have flown with Alaska Airlines, Delta and United Airlines from Portland to Ontario have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,692 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,692 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta
8.0
Very good
8,220 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines
7.4
Good
8,766 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

WestJet
7.2
Good
2,801 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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.

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

    $171 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $178 and $211, respectively.

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

    While some choose either Portland - Toronto Pearson Intl or Portland - Toronto Island, Portland - Montreal Pierre Elliott Trudeau 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, January is the cheapest month in which you can book a flight from Portland to Region of Ontario (average of $243). Flying from Portland to Region of Ontario in July is currently the most expensive (average of $359). 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.
Portland to Vancouver Intl flights
Portland to Calgary flights
Portland to Pierre Elliott Trudeau Intl flights
Portland to Pearson Intl flights
Boise to Vancouver Intl flights
Boise to Calgary flights
Portland to Victoria flights
Redmond to Vancouver Intl flights
Eugene to Vancouver Intl flights
Portland to Toronto Island flights
Redmond to Calgary flights
Portland to Québec City flights
Boise to Pearson Intl flights
Portland to St. John's flights
Portland to Edmonton flights
Medford to Vancouver Intl flights
Portland to Halifax flights
Portland to Ottawa flights
Portland to Kelowna flights
Portland to Whitehorse flights
Redmond to Pearson Intl flights
Boise to Halifax flights
Boise to Pierre Elliott Trudeau Intl flights
Eugene to Pearson Intl flights
Portland to Winnipeg flights
Redmond to Halifax flights
Portland to Kamloops flights
Portland to Regina flights
Boise to Victoria flights
Eugene to Pierre Elliott Trudeau Intl flights
Yakima to Vancouver Intl flights
Portland to Fredericton flights
Portland to Yellowknife flights
Boise to Hamilton flights
Medford to Pearson Intl flights
Portland to Comox flights
Medford to Ottawa flights
Portland to Saskatoon flights
Boise to Québec City flights
Yakima to Edmonton flights
Medford to Pierre Elliott Trudeau Intl flights
Eugene to Ottawa flights
Eugene to Edmonton flights
Medford to Hamilton flights
Portland to Williams Lake 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$136Average$548FlexibilityNo cancel feeOn-time67%
WestJetCheapest$213Average$442FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$260Average$614FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$313Average$464FlexibilityNo cancel feeOn-time75%
DeltaCheapest$317Average$474FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$348Average$531FlexibilityNo cancel feeOn-time71%
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