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Cheap flights from Portland to Ontario from $130

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Ontario departing on 3/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
3:15 pm - 6:08 amPDX-YYZ
11h 53m2 stops
Air Canada Logo
8:00 am - 2:40 pmYYZ-PDX
9h 40m2 stops
$326Air Canada
Find Deal
Fri, Dec 5 - Sun, Dec 7
United Airlines Logo
11:59 pm - 9:58 amPDX-YYZ
6h 59m1 stop
United Airlines Logo
12:45 pm - 8:43 pmYYZ-PDX
10h 58m1 stop
$334United Airlines
Find Deal
Tue, Mar 3 - Wed, Mar 4
Air Canada Logo
9:50 am - 12:13 amPDX-YYZ
11h 23m2 stops
Air Canada Logo
12:00 pm - 6:30 pmYYZ-PDX
9h 30m2 stops
$336Air Canada
Find Deal
Wed, Nov 26 - Wed, Dec 3
Air Canada Logo
3:15 pm - 5:38 amPDX-YYZ
11h 23m2 stops
Air Canada Logo
8:00 am - 6:30 pmYYZ-PDX
13h 30m2 stops
$339Air Canada
Find Deal
Tue, Nov 18 - Tue, Nov 25
United Airlines Logo
3:54 pm - 7:30 amPDX-YYZ
12h 36m1 stop
United Airlines Logo
2:57 pm - 10:05 pmYYZ-PDX
10h 08m1 stop
$341United Airlines
Find Deal
Sat, Nov 15 - Mon, Nov 17
Alaska Airlines Logo
6:00 am - 3:35 pmPDX-YYZ
6h 35m1 stop
Alaska Airlines Logo
4:45 pm - 10:21 pmYYZ-PDX
8h 36m1 stop
$349Alaska Airlines
Find Deal
Fri, Feb 20 - Fri, Mar 20
Delta Logo
11:15 pm - 8:57 amPDX-YYZ
6h 42m1 stop
Delta Logo
6:30 am - 11:14 amYYZ-PDX
7h 44m1 stop
$351Delta
Find Deal
Thu, Nov 20 - Wed, Nov 26
Delta Logo
12:19 pm - 11:21 pmPDX-YYZ
8h 02m1 stop
Delta Logo
6:10 pm - 8:31 amYYZ-PDX
17h 21m2 stops
$364Delta
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Wed, Nov 19 - Tue, Nov 25
WestJet Logo
6:00 am - 12:42 amPDX-YOW
15h 42m2 stops
WestJet Logo
5:45 pm - 7:19 pmYOW-PDX
28h 34m2 stops
$888WestJet
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Thu, Nov 13 - Mon, Nov 17
WestJet Logo
6:00 am - 12:40 amPDX-YOW
39h 40m2 stops
WestJet Logo
5:45 pm - 11:14 amYOW-PDX
44h 29m2 stops
$905WestJet
Find Deal
Thu, Nov 13 - Mon, Nov 17

Air Canada flights from Portland to Region of Ontario

Our best Air Canada deals on Portland to Region of Ontario flight tickets
Air Canada
Dec 5
PDX3:15 pmPortland
11h 53m
2 stops
YYZ6:08 amToronto Pearson Intl
Dec 7
YYZ8:00 amToronto Pearson Intl
9h 40m
2 stops
PDX2:40 pmPortland
$326
Find similar
Air Canada
Nov 26
PDX9:50 amPortland
11h 23m
2 stops
YYZ12:13 amToronto Pearson Intl
Dec 3
YYZ12:00 pmToronto Pearson Intl
9h 30m
2 stops
PDX6:30 pmPortland
$336
Find similar
Air Canada
Nov 18
PDX3:15 pmPortland
11h 23m
2 stops
YYZ5:38 amToronto Pearson Intl
Nov 25
YYZ8:00 amToronto Pearson Intl
13h 30m
2 stops
PDX6:30 pmPortland
$339
Find similar

United Airlines flights from Portland to Region of Ontario

Our best United Airlines deals on Portland to Region of Ontario flight tickets
United Airlines
Mar 3
PDX11:59 pmPortland
6h 59m
1 stop
YYZ9:58 amToronto Pearson Intl
Mar 4
YYZ12:45 pmToronto Pearson Intl
10h 58m
1 stop
PDX8:43 pmPortland
$334
Find similar
United Airlines
Nov 15
PDX3:54 pmPortland
12h 36m
1 stop
YYZ7:30 amToronto Pearson Intl
Nov 17
YYZ2:57 pmToronto Pearson Intl
10h 08m
1 stop
PDX10:05 pmPortland
$341
Find similar
United Airlines
Apr 24
PDX11:30 pmPortland
14h 31m
1 stop
YYZ5:01 pmToronto Pearson Intl
Apr 27
YYZ12:45 pmToronto Pearson Intl
9h 46m
1 stop
PDX7:31 pmPortland
$362
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Portland to Region of 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, momondo users made 832,500 searches. Data last updated November 3, 2025.
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

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Fri 12/5

3:15 pm-6:08 am

2 stops11h 53m

Toronto Pearson Intl

Sun 12/7

8:00 am-2:40 pm

2 stops9h 40m

$326

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Tue 3/3

11:59 pm-9:58 am

1 stop6h 59m

Toronto Pearson Intl

Wed 3/4

12:45 pm-8:43 pm

1 stop10h 58m

$334

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Wed 11/26

9:50 am-12:13 am

2 stops11h 23m

Toronto Pearson Intl

Wed 12/3

12:00 pm-6:30 pm

2 stops9h 30m

$336

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Tue 11/18

3:15 pm-5:38 am

2 stops11h 23m

Toronto Pearson Intl

Tue 11/25

8:00 am-6:30 pm

2 stops13h 30m

$339

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Sat 11/15

3:54 pm-7:30 am

1 stop12h 36m

Toronto Pearson Intl

Mon 11/17

2:57 pm-10:05 pm

1 stop10h 08m

$341

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Fri 2/20

6:00 am-3:35 pm

1 stop6h 35m

Toronto Pearson Intl

Fri 3/20

4:45 pm-10:21 pm

1 stop8h 36m

$349

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Thu 11/20

11:15 pm-8:57 am

1 stop6h 42m

Toronto Pearson Intl

Wed 11/26

6:30 am-11:14 am

1 stop7h 44m

$351

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Wed 11/19

12:19 pm-11:21 pm

1 stop8h 02m

Toronto Pearson Intl

Tue 11/25

6:10 pm-8:31 am

2 stops17h 21m

$364

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Thu 11/13

6:00 am-12:42 am

2 stops15h 42m

Ottawa

Mon 11/17

5:45 pm-7:19 pm

2 stops28h 34m

$888

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Thu 11/13

6:00 am-12:40 am

2 stops39h 40m

Ottawa

Mon 11/17

5:45 pm-11:14 am

2 stops44h 29m

$905

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ontario from

How to get the cheapest flight ticket from Portland to Region of Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Region of Ontario?

The month of August is, on average, the cheapest month to fly to Region of Ontario from Portland, with most prices found around $358. If you aren’t able to travel during the month of August, then book flights to Region of Ontario from Portland during October instead. Flights to Region of Ontario in October, while not as cheap as those in August, still average around $359.

What is the cheapest day to depart on your flight to Region of Ontario?

According to our data, Saturday is the cheapest day to fly to Region of Ontario from Portland. The lowest ticket price found for a Saturday departure recently was $1,449. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Portland to Region of Ontario on a Friday will generally be more expensive and average around $1,450. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Region of Ontario?

According to our data, the cheapest time of day to fly to Region of Ontario is in the afternoon. momondo users have found flights departing from Portland to Region of Ontario in the afternoon for as low as $328. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $1,450.

What is the cheapest Portland to Ontario flight route?

Fly from Portland to Toronto Pearson Intl for the best Portland - Ontario flight prices

How far in advance should I book a flight to Region of Ontario?

You are more likely to see cheaper flights to Region of Ontario from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around $462 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from Portland for as low as $287 on momondo.

What cabin class options are available on Portland to Ontario flights?

There is only 1 cabin class available to choose from on Portland to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Portland to Region of Ontario flights?

You could potentially save up to 18% on your flight if you consider stops on a Portland to Region of Ontario flight.

Cheap Portland to Region of Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Region of Ontario

Direct flights

None
There are no direct flights from Portland to Region of Ontario. There are no popular flight routes from Portland to Region of Ontario.
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  • When did momondo last update prices for flights from Portland Airport to Ontario?

    Prices for flights from Portland Airport to Ontario were last updated today.

  • How many operators does momondo search for flights from Portland Airport to Ontario?

  • How old do you have to be to fly from Portland Airport to Ontario?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Ontario.

  • What documentation or ID do you need to fly to Ontario?

    The travel and health documents you'll need for your trip to Ontario may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Portland to Region of Ontario?

Best airlines flying from Portland to Region of Ontario

Compare and see reviews for airlines that fly from Portland to Region of Ontario with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $209Free CancellationRating
7.9
8,001 reviews
Search Delta flights
WestJetPriceFrom $214Free CancellationRating
7.2
3,153 reviews
Search WestJet flights
Air CanadaPriceFrom $276Free CancellationRating
7.1
10,397 reviews
Search Air Canada flights
Alaska AirlinesPriceFrom $313Free CancellationRating
8.0
11,234 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $321Free CancellationRating
7.2
11,033 reviews
Search American Airlines flights
United AirlinesPriceFrom $321Free CancellationRating
7.4
8,996 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Ontario?

Finding the right flight to Ontario from Portland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Ontario quick and easy, saving you time and money.

Can I find flights from Portland to Ontario with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Portland to Ontario flights to just show those with flexible booking policies.

How can momondo help me find flights from Portland to Ontario?

momondo provides multiple filters to help you find the best flight to Ontario from Portland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Portland to Ontario right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Ontario from Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Region of Ontario trip

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