Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Washington to Ontario from $132

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Ontario departing on 10/7. 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 Washington to Ontario

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
10:10 am - 8:29 pmPDX  Portland-YYZ Toronto Pearson Intl
7h 19m1 stop Vancouver Intl
Air Canada Logo
8:00 am - 2:51 pmYYZ  Toronto Pearson Intl-PDX Portland
9h 51m1 stop Vancouver Intl
$316Air Canada
mié., oct. 14 - mié., oct. 21
Air Canada Logo
10:00 am - 8:33 pmPDX  Portland-YUL Montreal Pierre Elliott Trudeau Intl
7h 33m1 stop Vancouver Intl
Air Canada Logo
8:45 am - 2:41 pmYUL  Montreal Pierre Elliott Trudeau Intl-PDX Portland
8h 56m1 stop Vancouver Intl
$327Air Canada
mar., dic. 1 - mar., dic. 8
Delta Logo
5:40 am - 4:44 pmPDX  Portland-YYZ Toronto Pearson Intl
8h 04m1 stop Salt Lake City
Delta Logo
6:00 am - 10:24 amYYZ  Toronto Pearson Intl-PDX Portland
7h 24m1 stop Detroit Metropolitan Wayne County
$343Delta
mar., sep. 15 - sáb., sep. 26
Delta Logo
10:35 pm - 11:25 amPDX  Portland-YYZ Toronto Pearson Intl
9h 50m1 stop New York John F Kennedy Intl
Delta Logo
1:34 pm - 9:47 pmYYZ  Toronto Pearson Intl-PDX Portland
11h 13m1 stop Atlanta Hartsfield-Jackson
$343Delta
mar., sep. 1 - mar., sep. 15
American Airlines Logo
11:34 pm - 10:59 amPDX  Portland-YYZ Toronto Pearson Intl
8h 25m1 stop Chicago O'Hare Intl
American Airlines Logo
6:00 am - 11:50 amYYZ  Toronto Pearson Intl-PDX Portland
8h 50m1 stop Philadelphia
$343American Airlines
mar., ago. 25 - mié., sep. 2
American Airlines Logo
12:50 pm - 11:46 pmPDX  Portland-YYZ Toronto Pearson Intl
7h 56m1 stop Philadelphia
American Airlines Logo
11:39 am - 6:00 pmYYZ  Toronto Pearson Intl-PDX Portland
9h 21m1 stop Chicago O'Hare Intl
$343American Airlines
mié., ago. 26 - mié., sep. 2
WestJet Logo
7:35 pm - 5:35 amSEA  Seattle/Tacoma Intl-YOW Ottawa
7h 00m1 stop Calgary
WestJet Logo
1:20 pm - 6:45 pmYOW  Ottawa-SEA Seattle/Tacoma Intl
8h 25m1 stop Calgary
$363WestJet
jue., sep. 24 - mié., sep. 30
WestJet Logo
7:35 pm - 5:35 amSEA  Seattle/Tacoma Intl-YOW Ottawa
7h 00m1 stop Calgary
WestJet Logo
4:15 pm - 9:40 amYOW  Ottawa-SEA Seattle/Tacoma Intl
20h 25m1 stop Calgary
$365WestJet
mié., sep. 16 - mié., sep. 23
United Airlines Logo
7:15 pm - 8:16 amPDX  Portland-YUL Montreal Pierre Elliott Trudeau Intl
10h 01m1 stop San Francisco
United Airlines Logo
11:23 am - 10:03 pmYUL  Montreal Pierre Elliott Trudeau Intl-PDX Portland
13h 40m1 stop Newark
$370United Airlines
mar., ago. 25 - mié., ago. 26
United Airlines Logo
11:02 pm - 10:40 amPDX  Portland-YUL Montreal Pierre Elliott Trudeau Intl
8h 38m1 stop Chicago O'Hare Intl
United Airlines Logo
2:20 pm - 8:10 pmYUL  Montreal Pierre Elliott Trudeau Intl-PDX Portland
8h 50m1 stop Washington, D.C. Dulles Intl
$370United Airlines
mar., ago. 25 - mié., ago. 26

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Air Canada flights from State of Washington to Region of Ontario

Our best Air Canada deals on State of Washington to Region of Ontario flight tickets
Air Canada
Oct 14
PDX10:10 amPortland
7h 19m
1 stop
YYZ8:29 pmToronto Pearson Intl
Oct 21
YYZ8:00 amToronto Pearson Intl
9h 51m
1 stop
PDX2:51 pmPortland
$316
Air Canada
Dec 1
PDX10:00 amPortland
7h 33m
1 stop
YUL8:33 pmMontreal Pierre Elliott Trudeau Intl
Dec 8
YUL8:45 amMontreal Pierre Elliott Trudeau Intl
8h 56m
1 stop
PDX2:41 pmPortland
$327
Air Canada
Oct 14
PDX10:10 amPortland
7h 50m
1 stop
YYZ9:00 pmToronto Pearson Intl
Oct 22
YYZ8:00 amToronto Pearson Intl
9h 51m
1 stop
PDX2:51 pmPortland
$328

Delta flights from State of Washington to Region of Ontario

Our best Delta deals on State of Washington to Region of Ontario flight tickets
Delta
Aug 25
PDX6:00 amPortland
9h 34m
1 stop
YYZ6:34 pmToronto Pearson Intl
Sep 2
YYZ5:50 pmToronto Pearson Intl
7h 48m
1 stop
PDX10:38 pmPortland
$343
Delta
Aug 25
PDX6:00 amPortland
9h 34m
1 stop
YYZ6:34 pmToronto Pearson Intl
Aug 31
YYZ6:15 amToronto Pearson Intl
10h 23m
1 stop
PDX1:38 pmPortland
$354
Delta
Sep 17
PDX11:10 pmPortland
11h 24m
1 stop
YYZ1:34 pmToronto Pearson Intl
Sep 20
YYZ12:25 pmToronto Pearson Intl
10h 51m
1 stop
PDX8:16 pmPortland
$365

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington 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 agosto 9, 2026.
Use the filters below to find and compare flights from Washington to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandToronto

PDX Portland - YYZ Toronto Pearson Intl

PDXYYZ

Portland

mié. 10/14

10:10 am-8:29 pm

1 stop7h 19m

Toronto Pearson Intl

mié. 10/21

8:00 am-2:51 pm

1 stop9h 51m

$316

PortlandMontreal

PDX Portland - YUL Montreal Pierre Elliott Trudeau Intl

PDXYUL

Portland

mar. 12/1

10:00 am-8:33 pm

1 stop7h 33m

Montreal Pierre Elliott Trudeau Intl

mar. 12/8

8:45 am-2:41 pm

1 stop8h 56m

$327

PortlandToronto

PDX Portland - YYZ Toronto Pearson Intl

PDXYYZ

Portland

mar. 9/15

5:40 am-4:44 pm

1 stop8h 04m

Toronto Pearson Intl

sáb. 9/26

6:00 am-10:24 am

1 stop7h 24m

$343

PortlandToronto

PDX Portland - YYZ Toronto Pearson Intl

PDXYYZ

Portland

mar. 9/1

10:35 pm-11:25 am

1 stop9h 50m

Toronto Pearson Intl

mar. 9/15

1:34 pm-9:47 pm

1 stop11h 13m

$343

PortlandToronto

PDX Portland - YYZ Toronto Pearson Intl

PDXYYZ

Portland

mar. 8/25

11:34 pm-10:59 am

1 stop8h 25m

Toronto Pearson Intl

mié. 9/2

6:00 am-11:50 am

1 stop8h 50m

$343

PortlandToronto

PDX Portland - YYZ Toronto Pearson Intl

PDXYYZ

Portland

mié. 8/26

12:50 pm-11:46 pm

1 stop7h 56m

Toronto Pearson Intl

mié. 9/2

11:39 am-6:00 pm

1 stop9h 21m

$343
Quickest round-trip

SeattleOttawa

SEA Seattle/Tacoma Intl - YOW Ottawa

SEAYOW

Seattle/Tacoma Intl

jue. 9/24

7:35 pm-5:35 am

1 stop7h 00m

Ottawa

mié. 9/30

1:20 pm-6:45 pm

1 stop8h 25m

$363

SeattleOttawa

SEA Seattle/Tacoma Intl - YOW Ottawa

SEAYOW

Seattle/Tacoma Intl

mié. 9/16

7:35 pm-5:35 am

1 stop7h 00m

Ottawa

mié. 9/23

4:15 pm-9:40 am

1 stop20h 25m

$365

PortlandMontreal

PDX Portland - YUL Montreal Pierre Elliott Trudeau Intl

PDXYUL

Portland

mar. 8/25

7:15 pm-8:16 am

1 stop10h 01m

Montreal Pierre Elliott Trudeau Intl

mié. 8/26

11:23 am-10:03 pm

1 stop13h 40m

$370

PortlandMontreal

PDX Portland - YUL Montreal Pierre Elliott Trudeau Intl

PDXYUL

Portland

mar. 8/25

11:02 pm-10:40 am

1 stop8h 38m

Montreal Pierre Elliott Trudeau Intl

mié. 8/26

2:20 pm-8:10 pm

1 stop8h 50m

$370

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Ontario from

How to get the cheapest flight ticket from State of Washington 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 January is, on average, the cheapest month to fly to Region of Ontario from State of Washington, with most prices found around $278. If you aren’t able to travel during the month of January, then book flights to Region of Ontario from State of Washington during November instead. Flights to Region of Ontario in November, while not as cheap as those in January, still average around $298.

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

According to our data, Tuesday is the cheapest day to fly to Region of Ontario from State of Washington. The lowest ticket price found for a Tuesday departure recently was $519. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from State of Washington to Region of Ontario on a Sunday will generally be more expensive and average around $788. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest Washington to Ontario flight route?

Fly from Seattle/Tacoma Intl to Toronto Pearson Intl for the best Washington - Ontario flight prices

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

You are more likely to see cheaper flights to Region of Ontario from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around $388 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 State of Washington for as low as $318 on momondo.

What cabin class options are available on State of Washington to Region of Ontario flights?

There are 4 cabin classes available to choose from on State of Washington to Region of 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 State of Washington to Region of Ontario flights?

You could potentially save up to 38% on your flight if you consider stops on a State of Washington to Region of Ontario flight.

Cheap State of Washington to Region of Ontario flight deals and tips

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

Best Price Found

$316

Fastest flight time

4h 32m

Direct flights

Every day

Airports in Region of Ontario

125 airports
The best one-way flight to Region of Ontario from State of Washington in the past 72 hours is $316. The best round-trip flight deal from State of Washington to Region of Ontario found on momondo in the last 72 hours is $496.
The fastest flight from State of Washington to Region of Ontario takes 4h 32m
Direct flights go from State of Washington to Region of Ontario every day.
There are 125 airports in Region of Ontario. From State of Washington there are direct flights to Toronto Pearson Intl (YYZ).
Search flight deals

Frequently asked questions about flying from Washington to Ontario

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

    Prices for flights from Washington to Ontario refresh daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Ontario.

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

    The required travel and health documents for your Ontario trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from State of Washington to Region of Ontario

Compare and see reviews for airlines that fly from State of Washington to Region of Ontario with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $132Free CancellationRating
7.1
11,456 reviews
Search Air Canada flights
DeltaPriceFrom $142Free CancellationRating
7.8
8,497 reviews
Search Delta flights
WestJetPriceFrom $226Free CancellationRating
7.2
3,430 reviews
Search WestJet flights
Alaska AirlinesPriceFrom $250Free CancellationRating
7.9
12,790 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $277Free CancellationRating
7.4
10,099 reviews
Search United Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Washington.

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

Flights from Washington to Ontario with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential Washington to Ontario flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from Washington to Ontario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ontario and let you know when they change.

An easier way to manage your Region of Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
mar. 9/8
mar. 9/15
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ontario

Popular cities in Ontario

Popular flights according to clicks in the last 7 days on momondo
Flights to Torontofrom $153
Flights to Vancouverfrom $133
Flights to Montrealfrom $184
Flights to Calgaryfrom $147
Flights to Ottawafrom $181
Flights to Halifaxfrom $258
Flights to Winnipegfrom $278
Flights to Québec Cityfrom $295
Flights to Kelownafrom $233
Flights to St. John'sfrom $405
Flights to Saskatoonfrom $267
Flights to Reginafrom $267