C$ 152 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 21/10. 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

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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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Best Ontario Flight Deals from Portland

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Ottawa
Ottawa1 stopC$ 418
Ottawa
Ottawa1 stopC$ 418

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, 16 Oct - Wed, 22 Oct
Air Canada Logo
3:25 p.m. - 7:10 a.m.PDX-YUL
12h 45m2 stops
Air Canada Logo
1:30 p.m. - 11:01 p.m.YUL-PDX
12h 31m2 stops
C$ 397Air Canada
Find Deal
Sat, 18 Oct - Fri, 24 Oct
United Airlines Logo
12:53 p.m. - 10:48 p.m.PDX-YYZ
6h 55m1 stop
United Airlines Logo
6:10 a.m. - 7:13 p.m.YYZ-PDX
16h 03m1 stop
C$ 400United Airlines
Find Deal
Thu, 16 Oct - Wed, 22 Oct
Air Canada Logo
3:25 p.m. - 7:10 a.m.PDX-YUL
12h 45m2 stops
Air Canada Logo
7:30 a.m. - 2:46 p.m.YUL-PDX
10h 16m1 stop
C$ 407Air Canada
Find Deal
Sat, 4 Oct - Tue, 7 Oct
Multiple Airlines Logo
1:45 p.m. - 12:22 a.m.PDX-YYZ
7h 37m1 stop
Multiple Airlines Logo
2:00 p.m. - 9:41 a.m.YYZ-PDX
22h 41m2 stops
C$ 427Multiple Airlines
Find Deal
Wed, 15 Oct - Wed, 22 Oct
Multiple Airlines Logo
5:55 p.m. - 7:58 p.m.PDX-YYZ
23h 03m1 stop
Multiple Airlines Logo
9:45 a.m. - 9:41 a.m.YYZ-PDX
26h 56m1 stop
C$ 434Multiple Airlines
Find Deal
Fri, 17 Oct - Thu, 23 Oct
American Airlines Logo
11:58 p.m. - 12:35 p.m.PDX-YYZ
9h 37m1 stop
American Airlines Logo
3:45 p.m. - 9:04 p.m.YYZ-PDX
8h 19m1 stop
C$ 443American Airlines
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Wed, 1 Oct - Sat, 4 Oct
American Airlines Logo
6:07 a.m. - 4:33 p.m.PDX-YUL
7h 26m1 stop
American Airlines Logo
7:25 a.m. - 8:37 p.m.YUL-PDX
16h 12m1 stop
C$ 447American Airlines
Find Deal
Fri, 3 Oct - Sat, 18 Oct
Delta Logo
12:45 a.m. - 11:38 a.m.PDX-YYZ
7h 53m1 stop
Delta Logo
6:00 a.m. - 12:06 p.m.YYZ-PDX
9h 06m1 stop
C$ 470Delta
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Tue, 21 Oct - Thu, 30 Oct
Delta Logo
12:40 a.m. - 11:47 a.m.PDX-YYZ
8h 07m1 stop
Delta Logo
6:00 a.m. - 11:56 a.m.YYZ-PDX
8h 56m1 stop
C$ 477Delta
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Wed, 1 Oct - Sat, 4 Oct
WestJet Logo
11:08 a.m. - 12:40 a.m.PDX-YOW
10h 32m2 stops
WestJet Logo
6:00 a.m. - 1:05 p.m.YOW-PDX
10h 05m1 stop
C$ 815WestJet
Find Deal
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?

What is the cheapest Portland to Ontario flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Ontario from Portland found in the last 72 hours was to Toronto, at C$ 578 round-trip. The most popular route is from Portland (PDX) to Toronto Pearson Intl Airport (YYZ), and the cheapest round-trip airline ticket found on this route in the last 72 hours was C$ 578.

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 August, when tickets cost C$ 494 (return) on average. On the other hand, the most expensive months are March and February, when the average cost of round-trip tickets is C$ 772 and C$ 684 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 3 weeks before departure, which saves you about 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flightC$ 152
Best time to beat the crowds but there is an average 5% increase in price.
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.

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

    The cheapest time of day to fly to Ontario is generally at night, when round-trip flights cost C$ 117 on average. The most expensive time of day to fly to Ontario is generally in the afternoon, which is peak travel time and where the average cost of a ticket is C$ 314.

Reviews of the top airlines 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 3095 reviews
7.1Comfort
7.9Crew
6.1Entertainment
6.2Food
7.4Boarding
Airline reviews

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

8.0 ExcellentAnonymous, Aug 2025YEG - YYZ
Read more WestJet reviews

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

Smooth flight Staff were courteous and welcoming upon entering and exiting the plane Pilot and crew provided frequent updates Leg space was not pleasant but manageable

Everything was good except I was a bit disappointed that I had to pay US $150 for bags.

Flight itself good .Landing at terminal3 and connections to terminal1,it is connections nightmare,specially for disable person

The seats very Uncomfortable, no meal and no entertainment for a 4Hours flight. Smooth Flight, Great Take off and landing. Superb crew!

The flight attendants were super! They created a cosy and warm flight atmosphere!

West Jet flight was cancelled and I was not notified. I found out when I tried to check in on-line. Spent 4 hours on the phone with West Jet and Just Fly trying to figure what happened.

It was good, flight was on time, boarding was smooth and done in zones, food was good too but there was no form of entertainment. Luggage’s were intact. So an overall good flight

Flight was delayed 3 times. Then cancelled due to pilot being timed out. They refused hotel vouchers. Gate attendants were very rude and could not help you at all.

No access to any entertainment No food other than a cookie or pretzels even tho flight was over the supper hour Seats very close together and very little leg room Staff was very good

Short flight. Everything was fine except the flight was delayed twice for a total of an hour.

I found the boarding easy and my seat was very comfortable as I had a lot of leg room. I am not too happy that I no longer have lounge access even though I used to get it with my TD credit card.

Flight cancelled. Major disruption to our travel. Do not use Air Canada from KC. To few flights.

There labor disputes cancelled my flight less than 24 hours before my boarding time but there customer service/website was easy enough to navigate and they rebooked me for no upcharge.

Re luggage I carried a backpack only. I did not check any bags in. However there were other passengers with carry on luggage going in the plane. My question is why are others allowed to have a carry on luggage inside the plane? Shouldn’t they have dropped it off at the gate? I’m asking because I could have brought the same thing instead of a backpack only. Please clarify for future reference. Thank you.

Like the service. Very hard to communicate or contact when have problems

Check in staff was incredibly rude and condescending. When I arrived at the gate I had been charged $125 for a checked back. I did have or check a bag. When I brought this to the attention of the staff member who checked me in, she said that she made a mistake and there was nothing she could do about it. I asked her to remove the charge and refund credit card, she said she could not and that I had to call my credit card company to contest the charge. I called Air Canada customer support, was put on hold, after 43 minutes a received a messages stating customer service was overwhelmed with calls and was then hung up on.

Refreshments and Air Hostess was good. Issues with customs in Toronto caused flight to depart and left me behind twice. Vouchers for delayed flight needs to increase.

Long wait to check in at the priority counter in Toronto

I had no communication, receipt etc from Air Canada until hours before flight

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

Information on your arrival and departure airports

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