C$ 134 Find Cheap Flights from Portland to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Ontario departing on 23/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Ontario, as well as popular online travel agencies
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Cheap Flights from Portland to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Ontario

Thu, 27 Aug - Mon, 31 Aug
WestJet Logo
2:30 p.m. - 1:05 a.m.
PDX
-
YYZ
7h 35m
1 stop
WestJet Logo
8:00 a.m. - 1:50 p.m.
YYZ
-
PDX
8h 50m
1 stop
C$ 304WestJet
Wed, 5 Aug - Fri, 7 Aug
WestJet Logo
2:30 p.m. - 1:05 a.m.
PDX
-
YYZ
7h 35m
1 stop
WestJet Logo
9:00 a.m. - 1:50 p.m.
YYZ
-
PDX
7h 50m
1 stop
C$ 313WestJet
Wed, 1 Jul - Tue, 7 Jul
WestJet Logo
2:30 p.m. - 1:05 a.m.
PDX
-
YYZ
7h 35m
1 stop
WestJet Logo
9:00 a.m. - 1:50 p.m.
YYZ
-
PDX
7h 50m
1 stop
C$ 319WestJet
Mon, 3 Aug - Fri, 7 Aug
WestJet Logo
2:30 p.m. - 5:10 a.m.
PDX
-
YYZ
11h 40m
2 stops
WestJet Logo
7:00 a.m. - 1:50 p.m.
YYZ
-
PDX
9h 50m
1 stop
C$ 332WestJet
Sat, 12 Sep - Fri, 18 Sep
Air Canada Logo
11:15 p.m. - 10:06 a.m.
PDX
-
YTZ
7h 51m
1 stop
Air Canada Logo
12:15 p.m. - 6:47 p.m.
YTZ
-
PDX
9h 32m
1 stop
C$ 565Air Canada
Sat, 12 Sep - Fri, 18 Sep
United Airlines Logo
5:00 a.m. - 6:42 p.m.
PDX
-
YTZ
10h 42m
2 stops
United Airlines Logo
12:15 p.m. - 6:47 p.m.
YTZ
-
PDX
9h 32m
1 stop
C$ 572United Airlines
Wed, 19 Aug - Fri, 21 Aug
United Airlines Logo
11:15 p.m. - 10:06 a.m.
PDX
-
YTZ
7h 51m
1 stop
United Airlines Logo
12:15 p.m. - 6:47 p.m.
YTZ
-
PDX
9h 32m
1 stop
C$ 586United Airlines
Sat, 6 Jun - Wed, 10 Jun
Air Canada Logo
10:40 p.m. - 10:06 a.m.
PDX
-
YTZ
8h 26m
1 stop
Air Canada Logo
12:30 p.m. - 10:30 p.m.
YTZ
-
PDX
13h 00m
2 stops
C$ 597Air Canada
Fri, 11 Sep - Thu, 17 Sep
Multiple Airlines Logo
2:00 p.m. - 9:40 a.m.
PDX
-
YTZ
16h 40m
2 stops
Multiple Airlines Logo
8:40 p.m. - 9:28 a.m.
YTZ
-
PDX
15h 48m
1 stop
C$ 757Multiple Airlines
Sat, 12 Sep - Thu, 17 Sep
Multiple Airlines Logo
7:03 a.m. - 6:00 p.m.
PDX
-
YTZ
7h 57m
1 stop
Multiple Airlines Logo
10:05 a.m. - 4:50 p.m.
YTZ
-
PDX
9h 45m
1 stop
C$ 761Multiple Airlines
Booking Insights

KAYAK's insights & trends for Portland to Ontario flights

Get data-powered insights and trends into flights from Portland to Ontario to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Portland to Region of Ontario?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Portland to Region of Ontario departing in August.

What is the cheapest time of day to fly to Ontario?

The average price for all round-trip flights from Portland to Ontario depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Ontario is generally at night, when round-trip flights cost C$ 160 on average. The most expensive time of day to fly to Ontario is generally at night, which is peak travel time and where the average cost of a ticket is C$ 160.

What is the cheapest month to fly from Portland to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portland to Ontario is October, when tickets cost C$ 141 (return) on average. On the other hand, the most expensive months are June and April, when the average cost of round-trip tickets is C$ 204 and C$ 194 respectively.

How far in advance should I book a flight from Portland to Ontario?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Portland to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from Portland to Ontario, you should book around 5 weeks before departure, which saves you about 42% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Find deals

Good to know

Low seasonFebruary
Cheapest flightC$ 134
Best time to beat the crowds (32% less expensive on average)
Most popular time to fly and prices are also 2% lower on average.
Flight from Portland to Toronto

FAQs - booking Ontario flights

  • How does KAYAK find such low prices on flights from Portland to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portland to Ontario is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Portland to Ontario with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Portland to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Portland to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Portland to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
WestJetOverall score based on 3328 reviews
7.4Boarding
6.2Food
6.1Entertainment
7.9Crew
7.0Comfort
Airline reviews

Westjet never disappoint always terrible small plane ,crowded cheap snack if you can call it snack

4.0 OkayMiguel, Apr 2026
MBJ - YYZ
Read more WestJet reviews

Westjet never disappoint always terrible small plane ,crowded cheap snack if you can call it snack

Westjet was late and we missed our connecting flight with Cathay. Had to wait 8 hours. Westjet only allows 1 checked in baggage for international flights- it’s always been 2. Canada allows only 1 sandwhich bag size full off small liquids. Everything else will be tossed. Awful trip. Will never fly west jet or go to Toronto to connect flights!

I didn’t have any food but my Prosecco hit the spot. We left on time and the crew was friendly.

I thought the coffee was excellent! The wait for the luggage was acceptable.. It left and arrived on time. My son found that his device worked very well and he really enjoyed his flight! The stewardess moved him up to the emergency exit and he very much appreciated that!

I wasn’t able to book or pay for a seat and they forgot to check me in for my third flight so I spent 24 hours in Toronto waiting for another one.

Everything was good except for flight delay, but it was because of the snow storm in the arrival airport.

The flight was cancelled less than 24 hours before departure. The alternate flight was a day later going from Grenada to Toronto to Vancouver to Calgary to Montreal. 2 days in the air. Not serious, Very bad service

I like the wider seats, Plus lots of legroom, Lacking entertainment, no tv or screen to play with

Liked in-flight wifi Did not like - nothing to complain, really. All good

The keg from Edmonton to Toronto My wife found it very cold. Other than that great flight.

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

Information on your arrival and departure airports

Portland (PDX)