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Cheap flights from Ontario to Portland from $150

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Portland departing on 11/3. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
9:50 am - 7:11 pm
YUL
-
PDX
12h 21m
2 stops
Air Canada Logo
3:30 pm - 7:10 am
PDX
-
YUL
12h 40m
2 stops
$279Air Canada
Sat, Aug 29 - Sat, Sep 5
Air Canada Logo
9:20 am - 7:11 pm
YUL
-
PDX
12h 51m
2 stops
Air Canada Logo
3:30 pm - 7:10 am
PDX
-
YUL
12h 40m
2 stops
$281Air Canada
Sat, Aug 22 - Sat, Aug 29
Air Canada Logo
9:20 am - 7:11 pm
YUL
-
PDX
12h 51m
2 stops
Air Canada Logo
3:30 pm - 7:10 am
PDX
-
YUL
12h 40m
2 stops
$283Air Canada
Sat, Aug 22 - Sat, Aug 29
Multiple Airlines Logo
6:30 am - 6:31 pm
YYZ
-
PDX
15h 01m
1 stop
Multiple Airlines Logo
7:45 pm - 12:19 pm
PDX
-
YYZ
13h 34m
2 stops
$293Multiple Airlines
Sat, Sep 26 - Sun, Sep 27
Delta Logo
11:40 am - 9:44 pm
YYZ
-
PDX
13h 04m
1 stop
Delta Logo
6:00 am - 6:34 pm
PDX
-
YYZ
9h 34m
1 stop
$294Delta
Tue, Jul 28 - Tue, Aug 11
United Airlines Logo
6:35 pm - 10:15 am
YUL
-
PDX
18h 40m
1 stop
United Airlines Logo
2:27 pm - 10:40 am
PDX
-
YUL
17h 13m
1 stop
$298United Airlines
Tue, Oct 13 - Sat, Oct 17
Delta Logo
11:40 am - 9:44 pm
YYZ
-
PDX
13h 04m
1 stop
Delta Logo
11:20 pm - 1:34 pm
PDX
-
YYZ
11h 14m
1 stop
$302Delta
Tue, Aug 11 - Thu, Aug 13
American Airlines Logo
7:15 pm - 11:34 am
YYZ
-
PDX
19h 19m
1 stop
American Airlines Logo
11:34 pm - 2:33 pm
PDX
-
YYZ
11h 59m
1 stop
$303American Airlines
Fri, Aug 28 - Mon, Aug 31
United Airlines Logo
10:45 am - 5:46 pm
YYZ
-
PDX
10h 01m
1 stop
United Airlines Logo
5:00 am - 9:32 pm
PDX
-
YYZ
13h 32m
1 stop
$315United Airlines
Sat, Sep 26 - Sun, Sep 27
Multiple Airlines Logo
6:00 am - 10:52 pm
YOW
-
PDX
19h 52m
3 stops
Multiple Airlines Logo
7:45 pm - 5:10 pm
PDX
-
YOW
18h 25m
2 stops
$444Multiple Airlines
Sat, Sep 19 - Tue, Sep 29

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Air Canada flights from Region of Ontario to Portland

Our best Air Canada deals on Region of Ontario to Portland flight tickets
Air Canada
Aug 29
YUL9:50 amMontreal Pierre Elliott Trudeau Intl
12h 21m
2 stops
PDX7:11 pmPortland
Sep 5
PDX3:30 pmPortland
12h 40m
2 stops
YUL7:10 amMontreal Pierre Elliott Trudeau Intl
$279
Air Canada
Aug 22
YUL9:20 amMontreal Pierre Elliott Trudeau Intl
12h 51m
2 stops
PDX7:11 pmPortland
Aug 29
PDX3:30 pmPortland
12h 40m
2 stops
YUL7:10 amMontreal Pierre Elliott Trudeau Intl
$281
Air Canada
Aug 22
YUL9:20 amMontreal Pierre Elliott Trudeau Intl
12h 51m
2 stops
PDX7:11 pmPortland
Aug 29
PDX3:30 pmPortland
12h 40m
2 stops
YUL7:10 amMontreal Pierre Elliott Trudeau Intl
$283

United Airlines flights from Region of Ontario to Portland

Our best United Airlines deals on Region of Ontario to Portland flight tickets
United Airlines
Oct 13
YUL6:35 pmMontreal Pierre Elliott Trudeau Intl
18h 40m
1 stop
PDX10:15 amPortland
Oct 17
PDX2:27 pmPortland
17h 13m
1 stop
YUL10:40 amMontreal Pierre Elliott Trudeau Intl
$298
United Airlines
Sep 30
YUL9:15 amMontreal Pierre Elliott Trudeau Intl
13h 55m
1 stop
PDX8:10 pmPortland
Oct 7
PDX1:03 pmPortland
16h 13m
1 stop
YUL8:16 amMontreal Pierre Elliott Trudeau Intl
$307
United Airlines
Sep 26
YYZ10:45 amToronto Pearson Intl
10h 01m
1 stop
PDX5:46 pmPortland
Sep 27
PDX5:00 amPortland
13h 32m
1 stop
YYZ9:32 pmToronto Pearson Intl
$315

momondo Fare Finder

 
Customize your flight search to find flights from Region of Ontario to Portland 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 July 15, 2026.
Use the filters below to find and compare flights from Ontario to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Sat 8/29

9:50 am-7:11 pm

2 stops12h 21m

Portland

Sat 9/5

3:30 pm-7:10 am

2 stops12h 40m

$279

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Sat 8/22

9:20 am-7:11 pm

2 stops12h 51m

Portland

Sat 8/29

3:30 pm-7:10 am

2 stops12h 40m

$281

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Sat 8/22

9:20 am-7:11 pm

2 stops12h 51m

Portland

Sat 8/29

3:30 pm-7:10 am

2 stops12h 40m

$283

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Sat 9/26

6:30 am-6:31 pm

1 stop15h 01m

Portland

Sun 9/27

7:45 pm-12:19 pm

2 stops13h 34m

$293
Quickest round-trip

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Tue 7/28

11:40 am-9:44 pm

1 stop13h 04m

Portland

Tue 8/11

6:00 am-6:34 pm

1 stop9h 34m

$294

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Tue 10/13

6:35 pm-10:15 am

1 stop18h 40m

Portland

Sat 10/17

2:27 pm-10:40 am

1 stop17h 13m

$298

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Tue 8/11

11:40 am-9:44 pm

1 stop13h 04m

Portland

Thu 8/13

11:20 pm-1:34 pm

1 stop11h 14m

$302

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Fri 8/28

7:15 pm-11:34 am

1 stop19h 19m

Portland

Mon 8/31

11:34 pm-2:33 pm

1 stop11h 59m

$303

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Sat 9/26

10:45 am-5:46 pm

1 stop10h 01m

Portland

Sun 9/27

5:00 am-9:32 pm

1 stop13h 32m

$315

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Sat 9/19

6:00 am-10:52 pm

3 stops19h 52m

Portland

Tue 9/29

7:45 pm-5:10 pm

2 stops18h 25m

$444

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 Portland from

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

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 Portland?

The cheapest month to fly to Portland from Region of Ontario is in September. Flight prices, which tend to average around $85, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in September, then you should wait until October to fly from Region of Ontario, when ticket prices are also cheap, with an average price of $99.

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

You are more likely to see cheaper flights to Portland from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland for around $378 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from Region of Ontario for as low as $258 on momondo.

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

You could potentially save up to 11% on your flight if you consider stops on a Region of Ontario to Portland flight.

Cheap Region of Ontario to Portland flight deals and tips

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

Fastest flight time

6h 55m

Direct flights

Sun

Airports in Portland

1 airport
The fastest flight from Region of Ontario to Portland takes 6h 55m
Direct flights go from Region of Ontario to Portland on Sunday. There are no airlines offering direct flights.
There is 1 airport in Portland. From Region of Ontario there are direct flights to Portland (PDX).
Search flight deals

Frequently asked questions about flying from Ontario to Portland

  • When did momondo last update prices for flights from Ontario to Portland Airport?

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

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

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

    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 Ontario to Portland Airport.

  • What documentation or ID do you need to fly to Portland Airport?

    The travel and health documents you'll need for your trip to Portland Airport 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 Portland Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Region of Ontario to Portland

Compare and see reviews for airlines that fly from Region of Ontario to Portland with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $149Free CancellationRating
7.1
11,341 reviews
Search Air Canada flights
DeltaPriceFrom $176Free CancellationRating
7.8
8,471 reviews
Search Delta flights
United AirlinesPriceFrom $284Free CancellationRating
7.4
9,990 reviews
Search United Airlines flights

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Lincoln City
Seaside
Vancouver
Cannon Beach
Salem
Astoria
Long Beach
Beaverton
Rockaway Beach
Hillsboro
Depoe Bay
Tigard
Longview
Hood River
Clackamas
Newberg
Troutdale
Gresham
McMinnville
Kelso

Why use momondo?

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

It is quick and easy to find Ontario to Portland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Portland that suits you.

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

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

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

momondo helps you find the best flight between Ontario and Portland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Ontario to Portland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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