What is the cheapest airline that flies from Washington to Ontario?

United Airlines, American Airlines, and Alaska Airlines are the most popular carriers operating from Washington to Ontario

Which airlines fly to Region of Ontario?

Alaska Airlines, Air Canada and WestJet are the top three most popular airlines that fly to Region of Ontario from State of Washington according to our data. Alaska Airlines is the first choice among our users, with 48% of people opting to fly with this airline when travelling to Region of Ontario. Keep in mind that there are 3 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

How long is the flight from State of Washington to Region of Ontario?

The flight from State of Washington to Region of Ontario depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from Seattle (a popular airport in State of Washington) to Toronto Pearson Intl Airport (the most popular airport in Region of Ontario), then the flight time is 4h 32m on average. If you fly from Spokane (another popular airport in State of Washington) to Toronto Pearson Intl Airport, then the average flight time is 6h 34m.

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

Prices for flights from Washington to Ontario are refreshed on a daily basis.

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

There are 3 operators available for flights from Washington to Ontario as of November 2026.

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 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 Washington to Ontario.

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

The necessary travel and health documents for your Ontario trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

C$ 241 Cheap Flights from Washington to Ontario in 2026/27

Q: How many flights depart from State of Washington to Region of Ontario on average per day?

As of November 2026, there are 3 flights per day flying from State of Washington to Region of Ontario. The most common time of day flights depart is 7:00a.m., with 96% of flights taking off at noon.

Q: How many flights depart from State of Washington to Region of Ontario on average per week?

The number of flights available between State of Washington and Region of Ontario is 23 per week as of November 2026. The most frequent departure day is Mon, with 22% of weekly flights leaving on this day.

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Find the cheapest flights from Washington to Ontario

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One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:30 p.m. - 5:45 a.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

12h 15m2 stops Calgary Edmonton

7:30 a.m. - 1:40 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

9h 10m1 stop Calgary

C$ 502WestJet

Fri, 15 Jan - Tue, 19 Jan

2:30 p.m. - 5:45 a.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

12h 15m2 stops Calgary Edmonton

7:30 a.m. - 1:40 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

9h 10m1 stop Calgary

C$ 504WestJet

Fri, 15 Jan - Tue, 19 Jan

2:30 p.m. - 5:45 a.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

12h 15m2 stops Calgary Edmonton

7:30 a.m. - 1:40 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

9h 10m1 stop Calgary

C$ 505WestJet

Thu, 3 Dec - Tue, 8 Dec

8:33 a.m. - 4:05 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 32mdirect

5:15 p.m. - 7:56 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 41mdirect

C$ 570Alaska Airlines

Fri, 11 Dec - Tue, 15 Dec

8:33 a.m. - 4:05 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 32mdirect

5:15 p.m. - 7:56 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 41mdirect

C$ 570Alaska Airlines

Fri, 4 Dec - Tue, 8 Dec

8:33 a.m. - 4:05 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 32mdirect

5:15 p.m. - 7:56 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 41mdirect

C$ 570Alaska Airlines

Mon, 7 Dec - Mon, 14 Dec

2:30 p.m. - 5:45 a.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

12h 15m2 stops Calgary Edmonton

5:15 p.m. - 7:56 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 41mdirect

C$ 574Multiple Airlines

Thu, 3 Dec - Tue, 8 Dec

8:33 a.m. - 4:05 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 32mdirect

7:30 a.m. - 1:40 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

9h 10m1 stop Calgary

C$ 574Multiple Airlines

Thu, 3 Dec - Tue, 8 Dec

3:15 p.m. - 6:16 a.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

12h 01m2 stops Vancouver Intl Calgary

8:45 a.m. - 2:37 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

8h 52m1 stop Vancouver Intl

C$ 622Air Canada

Sat, 16 Jan - Sun, 17 Jan

3:15 p.m. - 6:16 a.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

12h 01m2 stops Vancouver Intl Calgary

8:45 a.m. - 2:37 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

8h 52m1 stop Vancouver Intl

C$ 622Air Canada

Sat, 16 Jan - Sun, 17 Jan

Cheap last-minute flights

Enter your travel dates to find the best prices.

2:30 p.m. - 5:00 a.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

11h 30m1 stop Calgary

7:30 a.m. - 1:40 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

9h 10m1 stop Calgary

C$ 886WestJet

Fri, 13 Nov - Wed, 2 Dec

5:00 a.m. - 4:05 p.m.GEG Spokane-YYZ Toronto Pearson Intl

8h 05m1 stop Seattle/Tacoma Intl

5:15 p.m. - 11:54 p.m.YYZ Toronto Pearson Intl-GEG Spokane

9h 39m1 stop Seattle/Tacoma Intl

C$ 907Alaska Airlines

Fri, 13 Nov - Fri, 20 Nov

5:05 p.m. - 4:05 p.m.GEG Spokane-YYZ Toronto Pearson Intl

20h 00m2 stops Boise Air Term. Gowen Fld Seattle/Tacoma Intl

5:15 p.m. - 11:54 p.m.YYZ Toronto Pearson Intl-GEG Spokane

9h 39m1 stop Seattle/Tacoma Intl

C$ 916Alaska Airlines

Fri, 13 Nov - Fri, 20 Nov

7:29 p.m. - 4:05 p.m.GEG Spokane-YYZ Toronto Pearson Intl

17h 36m2 stops Portland Seattle/Tacoma Intl

5:15 p.m. - 9:06 a.m.YYZ Toronto Pearson Intl-GEG Spokane

18h 51m2 stops Seattle/Tacoma Intl Portland

C$ 937Alaska Airlines

Fri, 13 Nov - Fri, 20 Nov

2:30 p.m. - 10:55 a.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

17h 25m1 stop Calgary

6:10 a.m. - 1:40 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

10h 30m1 stop Calgary

C$ 959WestJet

Wed, 11 Nov - Fri, 20 Nov

2:30 p.m. - 5:00 a.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

11h 30m1 stop Calgary

10:50 p.m. - 1:40 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

17h 50m2 stops Winnipeg Calgary

C$ 965WestJet

Fri, 13 Nov - Wed, 2 Dec

2:30 p.m. - 5:00 a.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

11h 30m1 stop Calgary

5:15 p.m. - 7:56 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 41mdirect

C$ 979Multiple Airlines

Fri, 13 Nov - Wed, 2 Dec

9:18 p.m. - 11:21 a.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

11h 03m1 stop Newark

7:30 a.m. - 1:40 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

9h 10m1 stop Calgary

C$ 1,047Multiple Airlines

Mon, 16 Nov - Wed, 25 Nov

7:45 a.m. - 3:25 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 40mdirect

6:25 p.m. - 8:59 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mdirect

C$ 1,165Air Canada

Mon, 16 Nov - Sat, 21 Nov

7:45 a.m. - 3:25 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 40mdirect

8:05 a.m. - 2:37 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

9h 32m1 stop Vancouver Intl

C$ 1,172Air Canada

Mon, 16 Nov - Sat, 21 Nov

Cheap direct flights

Enter your travel dates to find the best prices.

8:33 a.m. - 4:05 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 32mdirect

5:15 p.m. - 7:56 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 41mdirect

C$ 570Alaska Airlines

Fri, 11 Dec - Tue, 15 Dec

8:33 a.m. - 4:05 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 32mdirect

5:15 p.m. - 7:56 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 41mdirect

C$ 570Alaska Airlines

Fri, 4 Dec - Tue, 8 Dec

8:33 a.m. - 4:05 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 32mdirect

5:15 p.m. - 7:56 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 41mdirect

C$ 570Alaska Airlines

Mon, 7 Dec - Mon, 14 Dec

8:33 a.m. - 4:05 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 32mdirect

5:15 p.m. - 7:56 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 41mdirect

C$ 570Alaska Airlines

Tue, 8 Dec - Tue, 15 Dec

7:45 a.m. - 3:25 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 40mdirect

6:25 p.m. - 8:59 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mdirect

C$ 624Air Canada

Sat, 12 Dec - Fri, 18 Dec

7:45 a.m. - 3:25 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 40mdirect

6:25 p.m. - 8:59 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mdirect

C$ 625Air Canada

Sat, 12 Dec - Fri, 18 Dec

7:45 a.m. - 3:25 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 40mdirect

6:25 p.m. - 8:59 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mdirect

C$ 634Air Canada

Sun, 13 Dec - Wed, 16 Dec

7:45 a.m. - 3:25 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 40mdirect

6:25 p.m. - 8:59 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mdirect

C$ 1,130United Airlines

Sat, 28 Nov - Sun, 29 Nov

7:45 a.m. - 3:25 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 40mdirect

6:25 p.m. - 8:59 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mdirect

C$ 1,130United Airlines

Tue, 24 Nov - Sun, 29 Nov

7:45 a.m. - 3:25 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 40mdirect

6:25 p.m. - 8:59 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mdirect

C$ 1,130United Airlines

Fri, 27 Nov - Sun, 29 Nov

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United Airlines flights from State of Washington to Region of Ontario

Our best United Airlines deals on State of Washington to Region of Ontario flight tickets

United Airlines

8 Dec

GEG12:30 p.m.Spokane

16h 00m

1 stop

YYZ7:30 a.m.Toronto Pearson Intl

9 Dec

YYZ10:53 a.m.Toronto Pearson Intl

14h 22m

1 stop

GEG10:15 p.m.Spokane

C$ 605

United Airlines

8 Dec

GEG12:30 p.m.Spokane

16h 00m

1 stop

YYZ7:30 a.m.Toronto Pearson Intl

9 Dec

YYZ9:44 a.m.Toronto Pearson Intl

14h 41m

2 stops

GEG9:25 p.m.Spokane

C$ 619

United Airlines

8 Dec

GEG7:00 a.m.Spokane

6h 47m

1 stop

YYZ4:47 p.m.Toronto Pearson Intl

9 Dec

YYZ3:35 p.m.Toronto Pearson Intl

9h 40m

1 stop

GEG10:15 p.m.Spokane

C$ 639

Alaska Airlines flights from State of Washington to Region of Ontario

Our best Alaska Airlines deals on State of Washington to Region of Ontario flight tickets

Alaska Airlines

23 Nov

SEA8:31 a.m.Seattle/Tacoma Intl

4h 34m

YYZ4:05 p.m.Toronto Pearson Intl

2 Dec

YYZ5:15 p.m.Toronto Pearson Intl

5h 41m

SEA7:56 p.m.Seattle/Tacoma Intl

C$ 570

Alaska Airlines

24 Nov

SEA8:31 a.m.Seattle/Tacoma Intl

4h 34m

YYZ4:05 p.m.Toronto Pearson Intl

2 Dec

YYZ5:15 p.m.Toronto Pearson Intl

5h 41m

SEA7:56 p.m.Seattle/Tacoma Intl

C$ 635

Alaska Airlines

19 Nov

GEG5:00 a.m.Spokane

8h 05m

1 stop

YYZ4:05 p.m.Toronto Pearson Intl

23 Nov

YYZ5:15 p.m.Toronto Pearson Intl

8h 19m

1 stop

GEG10:34 p.m.Spokane

C$ 655

momondo Fare Finder

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

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Fri 15/1

2:30 p.m.-5:45 a.m.

2 stops12h 15m

Toronto Pearson Intl

Tue 19/1

7:30 a.m.-1:40 p.m.

1 stop9h 10m

C$ 502

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Fri 15/1

2:30 p.m.-5:45 a.m.

2 stops12h 15m

Toronto Pearson Intl

Tue 19/1

7:30 a.m.-1:40 p.m.

1 stop9h 10m

C$ 504

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Thu 3/12

2:30 p.m.-5:45 a.m.

2 stops12h 15m

Toronto Pearson Intl

Tue 8/12

7:30 a.m.-1:40 p.m.

1 stop9h 10m

C$ 505

Quickest round-trip

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Fri 11/12

8:33 a.m.-4:05 p.m.

Nonstop4h 32m

Toronto Pearson Intl

Tue 15/12

5:15 p.m.-7:56 p.m.

Nonstop5h 41m

C$ 570

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Fri 4/12

8:33 a.m.-4:05 p.m.

Nonstop4h 32m

Toronto Pearson Intl

Tue 8/12

5:15 p.m.-7:56 p.m.

Nonstop5h 41m

C$ 570

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Mon 7/12

8:33 a.m.-4:05 p.m.

Nonstop4h 32m

Toronto Pearson Intl

Mon 14/12

5:15 p.m.-7:56 p.m.

Nonstop5h 41m

C$ 570

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Thu 3/12

2:30 p.m.-5:45 a.m.

2 stops12h 15m

Toronto Pearson Intl

Tue 8/12

5:15 p.m.-7:56 p.m.

Nonstop5h 41m

C$ 574

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Thu 3/12

8:33 a.m.-4:05 p.m.

Nonstop4h 32m

Toronto Pearson Intl

Tue 8/12

7:30 a.m.-1:40 p.m.

1 stop9h 10m

C$ 574

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Sat 16/1

3:15 p.m.-6:16 a.m.

2 stops12h 01m

Toronto Pearson Intl

Sun 17/1

8:45 a.m.-2:37 p.m.

1 stop8h 52m

C$ 622

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Sat 16/1

3:15 p.m.-6:16 a.m.

2 stops12h 01m

Toronto Pearson Intl

Sun 17/1

8:45 a.m.-2:37 p.m.

1 stop8h 52m

C$ 622

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

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

In general, January is the cheapest month to fly from State of Washington to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 391. If you are unable to visit Region of Ontario during the month of January, then departing from State of Washington during the month March is also very affordable. Most momondo users find prices during this month for around C$ 452.

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

The cheapest day to depart from State of Washington to Region of Ontario is on a Thursday. Travellers who choose to depart for Region of Ontario on a Thursday will often find tickets for as low as C$ 761. The most expensive day to fly to Region of Ontario is Monday, with ticket prices averaging around C$ 994.

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 C$ 648 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 C$ 449 on momondo.

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

There are 3 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?

No. A direct flight is the cheapest option for a flight between State of Washington to Region of Ontario.

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	C$ 241
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 C$ 241. The best round-trip flight deal from State of Washington to Region of Ontario found on momondo in the last 72 hours is C$ 502.

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).

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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 are refreshed on a daily basis.
How many operators does momondo search for flights from Washington to Ontario?
There are 3 operators available for flights from Washington to Ontario as of November 2026.
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 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 Washington to Ontario.
What documentation or ID do you need to fly to Ontario?
The necessary travel and health documents for your Ontario trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from State of Washington to Region of Ontario?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from State of Washington to Region of Ontario is Airbus A220-300 (14.07% of total bookings). The next most popular plane models are Airbus A330-200 (11.41%), Boeing 787-10 Dreamliner (8.37%), and Boeing 737 MAX 8 (6.84%).

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
Alaska Airlines	PriceFrom C$ 319	Free Cancellation	Rating 7.9 13,159 reviews	Search Alaska Airlines flights
WestJet	PriceFrom C$ 358	Free Cancellation	Rating 7.2 3,435 reviews	Search WestJet flights
Air Canada	PriceFrom C$ 372	Free Cancellation	Rating 7.1 11,880 reviews	Search Air Canada 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?

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ontario from Washington.

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

Of course. momondo tracks the price of Washington to Ontario 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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Popular Cities in Ontario

Flights to Torontofrom C$ 155

Flights to Vancouverfrom C$ 107

Flights to Calgaryfrom C$ 82

Flights to Montrealfrom C$ 268

Flights to Winnipegfrom C$ 159

Flights to Halifaxfrom C$ 169

Flights to Ottawafrom C$ 217

Flights to Kelownafrom C$ 131

Flights to Saskatoonfrom C$ 247

Flights to St. John'sfrom C$ 308

Flights to Reginafrom C$ 313

Flights to Québec Cityfrom C$ 302

Cheap flights from Washington to Ontario from C$ 241

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 25/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Washington to Ontario

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

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Big names, great deals

Big names, great deals

Filter for what you want

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United Airlines flights from State of Washington to Region of Ontario

Our best United Airlines deals on State of Washington to Region of Ontario flight tickets

Alaska Airlines flights from State of Washington to Region of Ontario

Our best Alaska Airlines deals on State of Washington to Region of Ontario flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Washington to Ontario that are best for you.

See travel insights to Ontario from

How to get the cheapest flight ticket from State of Washington to Region of Ontario

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

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

What is the cheapest Washington to Ontario flight route?

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

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

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

What is the cheapest airline that flies from Washington to Ontario?

Which airlines fly to Region of Ontario?

How many flights depart from State of Washington to Region of Ontario on average per day?

How many flights depart from State of Washington to Region of Ontario on average per week?

How long is the flight from State of Washington to Region of Ontario?

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

Best price found

Fastest flight time

Direct flights

Airports in Region of Ontario

Frequently asked questions about flying from Washington to 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

Why use momondo?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Ontario

Popular Cities in Ontario

Popular flights according to clicks in the last 7 days on momondo

State of Washington flight routes

According to popular flight searches on momondo this year

Region of Ontario flight routes

According to popular flight searches on momondo this year

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According to popular flight searches on momondo this year