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

17 flights are operational weekly from Region of Ontario to State of Washington as of October 2026. The most popular departure day for this route is Mon, with 24% of flights per week taking off on this day.

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

Flight times from Region of Ontario to State of Washington vary, but if you’re flying out of Hamilton and flying into Seattle (one of the most popular routes), then the duration is 8h 52m on average. Another popular route from Region of Ontario to State of Washington is flying from Ottawa to Seattle, which will take roughly 9h 31m. Keep in mind that layovers or delays could extend your travel time.

Which airlines fly to State of Washington?

WestJet, Air Canada and Alaska Airlines are the top three most popular airlines that fly to State of Washington from Region of Ontario according to our data. WestJet is the first choice among our users, with 32% of people opting to fly with this airline when travelling to State of Washington. Keep in mind that there are 5 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

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

As of October 2026, 2 flights take off from Region of Ontario and land in State of Washington each day. The most common flight departure time for this route is 6:00p.m., with 75% of daily flights taking off in the evening.

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

Delta, United Airlines, and WestJet are the most popular carriers operating from Ontario to Washington

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

Prices for flights from Ontario to Washington are updated daily.

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

There are 5 operators available for flights from Ontario to Washington as of October 2026.

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

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 Ontario to Washington.

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

The necessary travel and health documents for your Washington 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$ 293 Cheap Flights from Ontario to Washington in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Washington

Round-trip

One-way

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Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

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

9h 10m1 stop Calgary

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

12h 15m2 stops Calgary Edmonton

C$ 445WestJet

Thu, 26 Nov - Thu, 3 Dec

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

9h 10m1 stop Calgary

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

12h 15m2 stops Calgary Edmonton

C$ 448WestJet

Wed, 25 Nov - Mon, 30 Nov

6:45 a.m. - 11:09 a.m.YYZ Toronto Pearson Intl-GEG Spokane

7h 24m1 stop Chicago O'Hare Intl

7:00 a.m. - 9:47 a.m.GEG Spokane-YYZ Toronto Pearson Intl

23h 47m2 stops San Francisco Chicago O'Hare Intl

C$ 502United Airlines

Thu, 29 Oct - Sun, 1 Nov

10:53 a.m. - 6:41 p.m.YYZ Toronto Pearson Intl-GEG Spokane

10h 48m2 stops Chicago O'Hare Intl San Francisco

1:53 p.m. - 10:47 a.m.GEG Spokane-YYZ Toronto Pearson Intl

17h 54m2 stops Denver Intl Chicago O'Hare Intl

C$ 502United Airlines

Wed, 28 Oct - Sat, 31 Oct

12:49 p.m. - 10:11 p.m.YYZ Toronto Pearson Intl-GEG Spokane

12h 22m2 stops Minneapolis St Paul Salt Lake City

7:25 p.m. - 8:49 a.m.GEG Spokane-YYZ Toronto Pearson Intl

10h 24m2 stops Seattle/Tacoma Intl Detroit Metropolitan Wayne County

C$ 502Delta

Sat, 24 Oct - Tue, 27 Oct

6:15 a.m. - 11:50 a.m.YYZ Toronto Pearson Intl-GEG Spokane

8h 35m1 stop Atlanta Hartsfield-Jackson

1:54 p.m. - 11:15 p.m.GEG Spokane-YYZ Toronto Pearson Intl

6h 21m1 stop Minneapolis St Paul

C$ 502Delta

Wed, 28 Oct - Sat, 31 Oct

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

8h 52m1 stop Vancouver Intl

8:40 a.m. - 6:59 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

7h 19m1 stop Vancouver Intl

C$ 556Air Canada

Sat, 31 Oct - Tue, 3 Nov

7:09 a.m. - 1:23 p.m.YYZ Toronto Pearson Intl-GEG Spokane

9h 14m1 stop Chicago O'Hare Intl

2:13 p.m. - 11:46 p.m.GEG Spokane-YYZ Toronto Pearson Intl

6h 33m1 stop Chicago O'Hare Intl

C$ 573American Airlines

Wed, 11 Nov - Wed, 18 Nov

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

8h 52m1 stop Vancouver Intl

7:05 p.m. - 6:52 a.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

8h 47m1 stop Vancouver Intl

C$ 576Air Canada

Fri, 30 Oct - Tue, 3 Nov

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

9h 10m1 stop Calgary

8:29 a.m. - 4:05 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 36mdirect

C$ 581Multiple Airlines

Sun, 13 Dec - Tue, 5 Jan

Cheap last-minute flights

Enter your travel dates to find the best prices.

6:10 p.m. - 9:40 a.m.YHM Hamilton-SEA Seattle/Tacoma Intl

18h 30m1 stop Calgary

2:30 p.m. - 2:25 p.m.SEA Seattle/Tacoma Intl-YHM Hamilton

20h 55m1 stop Calgary

C$ 795WestJet

Tue, 20 Oct - Wed, 9 Dec

12:00 p.m. - 6:45 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

9h 45m1 stop Calgary

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

17h 25m1 stop Calgary

C$ 798WestJet

Tue, 20 Oct - Wed, 9 Dec

6:15 a.m. - 4:16 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

13h 01m1 stop Atlanta Hartsfield-Jackson

7:15 a.m. - 9:56 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

11h 41m2 stops Austin Bergstrom Atlanta Hartsfield-Jackson

C$ 872Delta

Tue, 20 Oct - Wed, 9 Dec

12:15 p.m. - 8:09 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

10h 54m1 stop New York John F Kennedy Intl

10:52 p.m. - 11:19 a.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

9h 27m1 stop New York John F Kennedy Intl

C$ 875Delta

Sat, 17 Oct - Mon, 9 Nov

9:00 a.m. - 6:45 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

12h 45m1 stop Calgary

8:19 a.m. - 4:05 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 46mdirect

C$ 885Multiple Airlines

Mon, 19 Oct - Tue, 17 Nov

9:00 a.m. - 6:45 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

12h 45m1 stop Calgary

8:13 a.m. - 9:52 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

10h 39m1 stop Austin Bergstrom

C$ 895Multiple Airlines

Mon, 19 Oct - Tue, 17 Nov

5:00 a.m. - 10:05 a.m.YOW Ottawa-SEA Seattle/Tacoma Intl

8h 05m1 stop Vancouver Intl

7:15 p.m. - 5:58 a.m.SEA Seattle/Tacoma Intl-YOW Ottawa

7h 43m1 stop Vancouver Intl

C$ 921Air Canada

Sat, 17 Oct - Sat, 24 Oct

11:40 a.m. - 6:00 a.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

21h 20m2 stops Chicago O'Hare Intl Portland

8:00 a.m. - 3:45 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 45mdirect

C$ 992Alaska Airlines

Tue, 20 Oct - Wed, 21 Oct

4:55 p.m. - 7:26 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 31mdirect

9:29 p.m. - 5:24 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

16h 55m2 stops Boise Air Term. Gowen Fld Dallas/Fort Worth

C$ 1,023Alaska Airlines

Fri, 16 Oct - Fri, 16 Oct

5:00 a.m. - 10:05 a.m.YOW Ottawa-SEA Seattle/Tacoma Intl

8h 05m1 stop Vancouver Intl

7:15 p.m. - 10:14 a.m.SEA Seattle/Tacoma Intl-YOW Ottawa

11h 59m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

C$ 1,039Air Canada

Tue, 20 Oct - Fri, 23 Oct

Cheap direct flights

Enter your travel dates to find the best prices.

5:15 p.m. - 7:45 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 30mdirect

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

4h 32mdirect

C$ 693Alaska Airlines

Wed, 11 Nov - Wed, 2 Dec

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

5h 41mdirect

8:29 a.m. - 4:05 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 36mdirect

C$ 693Alaska Airlines

Tue, 15 Dec - Tue, 12 Jan

5:15 p.m. - 7:45 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 30mdirect

8:19 a.m. - 4:05 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 46mdirect

C$ 693Alaska Airlines

Sat, 14 Nov - Wed, 18 Nov

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

5h 34mdirect

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

4h 40mdirect

C$ 713Air Canada

Sun, 1 Nov - Tue, 10 Nov

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

5h 34mdirect

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

4h 40mdirect

C$ 713Air Canada

Wed, 4 Nov - Sun, 8 Nov

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

5h 34mdirect

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

4h 40mdirect

C$ 720Air Canada

Fri, 13 Nov - Thu, 3 Dec

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

5h 34mdirect

8:31 a.m. - 4:05 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 34mdirect

C$ 797Multiple Airlines

Sat, 14 Nov - Sun, 22 Nov

6:10 a.m. - 1:25 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

10h 15mdirect

7:35 p.m. - 7:30 a.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

8h 55mdirect

C$ 916Lufthansa

Sat, 14 Nov - Sun, 22 Nov

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

5h 34mdirect

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

4h 40mdirect

C$ 956United Airlines

Mon, 16 Nov - Fri, 27 Nov

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

5h 34mdirect

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

4h 40mdirect

C$ 1,151United Airlines

Sat, 14 Nov - Sun, 22 Nov

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WestJet flights from Region of Ontario to State of Washington

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

WestJet

26 Nov

YYZ7:30 a.m.Toronto Pearson Intl

9h 10m

1 stop

SEA1:40 p.m.Seattle/Tacoma Intl

3 Dec

SEA2:30 p.m.Seattle/Tacoma Intl

12h 15m

2 stops

YYZ5:45 a.m.Toronto Pearson Intl

C$ 445

WestJet

25 Nov

YYZ7:30 a.m.Toronto Pearson Intl

9h 10m

1 stop

SEA1:40 p.m.Seattle/Tacoma Intl

2 Dec

SEA2:30 p.m.Seattle/Tacoma Intl

12h 15m

2 stops

YYZ5:45 a.m.Toronto Pearson Intl

C$ 452

WestJet

20 Nov

YYZ7:30 a.m.Toronto Pearson Intl

9h 10m

1 stop

SEA1:40 p.m.Seattle/Tacoma Intl

2 Dec

SEA2:30 p.m.Seattle/Tacoma Intl

12h 15m

2 stops

YYZ5:45 a.m.Toronto Pearson Intl

C$ 455

Air Canada flights from Region of Ontario to State of Washington

Our best Air Canada deals on Region of Ontario to State of Washington flight tickets

Air Canada

3 Dec

YOW7:45 a.m.Ottawa

9h 52m

1 stop

SEA2:37 p.m.Seattle/Tacoma Intl

8 Dec

SEA7:45 a.m.Seattle/Tacoma Intl

8h 00m

1 stop

YOW6:45 p.m.Ottawa

C$ 581

Air Canada

31 Oct

YOW2:00 p.m.Ottawa

9h 59m

1 stop

SEA8:59 p.m.Seattle/Tacoma Intl

10 Nov

SEA7:45 a.m.Seattle/Tacoma Intl

9h 00m

1 stop

YOW7:45 p.m.Ottawa

C$ 592

Air Canada

12 Nov

YOW7:45 a.m.Ottawa

9h 52m

1 stop

SEA2:37 p.m.Seattle/Tacoma Intl

22 Nov

SEA8:40 a.m.Seattle/Tacoma Intl

13h 16m

1 stop

YOW12:56 a.m.Ottawa

C$ 602

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Thu 26/11

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

1 stop9h 10m

Seattle/Tacoma Intl

Thu 3/12

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

2 stops12h 15m

C$ 445

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Wed 25/11

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

1 stop9h 10m

Seattle/Tacoma Intl

Mon 30/11

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

2 stops12h 15m

C$ 448

TorontoSpokane

YYZ Toronto Pearson Intl - GEG Spokane

YYZGEG

Toronto Pearson Intl

Thu 29/10

6:45 a.m.-11:09 a.m.

1 stop7h 24m

Spokane

Sun 1/11

7:00 a.m.-9:47 a.m.

2 stops23h 47m

C$ 502

TorontoSpokane

YYZ Toronto Pearson Intl - GEG Spokane

YYZGEG

Toronto Pearson Intl

Wed 28/10

10:53 a.m.-6:41 p.m.

2 stops10h 48m

Spokane

Sat 31/10

1:53 p.m.-10:47 a.m.

2 stops17h 54m

C$ 502

TorontoSpokane

YYZ Toronto Pearson Intl - GEG Spokane

YYZGEG

Toronto Pearson Intl

Sat 24/10

12:49 p.m.-10:11 p.m.

2 stops12h 22m

Spokane

Tue 27/10

7:25 p.m.-8:49 a.m.

2 stops10h 24m

C$ 502

TorontoSpokane

YYZ Toronto Pearson Intl - GEG Spokane

YYZGEG

Toronto Pearson Intl

Wed 28/10

6:15 a.m.-11:50 a.m.

1 stop8h 35m

Spokane

Sat 31/10

1:54 p.m.-11:15 p.m.

1 stop6h 21m

C$ 502

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Sat 31/10

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

1 stop8h 52m

Seattle/Tacoma Intl

Tue 3/11

8:40 a.m.-6:59 p.m.

1 stop7h 19m

C$ 556

TorontoSpokane

YYZ Toronto Pearson Intl - GEG Spokane

YYZGEG

Toronto Pearson Intl

Wed 11/11

7:09 a.m.-1:23 p.m.

1 stop9h 14m

Spokane

Wed 18/11

2:13 p.m.-11:46 p.m.

1 stop6h 33m

C$ 573

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Fri 30/10

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

1 stop8h 52m

Seattle/Tacoma Intl

Tue 3/11

7:05 p.m.-6:52 a.m.

1 stop8h 47m

C$ 576

Quickest round-trip

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Sun 13/12

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

1 stop9h 10m

Seattle/Tacoma Intl

Tue 5/1

8:29 a.m.-4:05 p.m.

Nonstop4h 36m

C$ 581

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 Region of Ontario to State of Washington

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 State of Washington?

In general, February is the cheapest month to fly from Region of Ontario to State of Washington. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 363. If you’re not able to fly to State of Washington in February, then January is your next best option. Flight prices from Region of Ontario to State of Washington during January average around C$ 401.

What is the cheapest day to depart on your flight to State of Washington?

On average, the least expensive day to fly to State of Washington from Region of Ontario is on a Friday. momondo users have found tickets for Friday departures for as low as C$ 559. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to State of Washington on Monday is C$ 1,009.

What is the cheapest time of day to depart on your flight to State of Washington?

According to our data, the cheapest time of day to fly to State of Washington is in the evening. momondo users have found flights departing from Region of Ontario to State of Washington in the evening for as low as C$ 529. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 1,339 on average. Flights to State of Washington from Region of Ontario in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Ontario to Washington flight route?

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

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

You are more likely to see cheaper flights to State of Washington from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around C$ 551 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Region of Ontario for as low as C$ 431 on momondo.

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

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

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

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

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

Best price found	C$ 293
Fastest flight time	5h 23m
Direct flights	Every day
Airports in State of Washington	96 airports

The best one-way flight to State of Washington from Region of Ontario in the past 72 hours is C$ 293. The best round-trip flight deal from Region of Ontario to State of Washington found on momondo in the last 72 hours is C$ 445.

The fastest flight from Region of Ontario to State of Washington takes 5h 23m

Direct flights go from Region of Ontario to State of Washington every day.

There are 96 airports in State of Washington. From Region of Ontario there are direct flights to Seattle/Tacoma Intl (SEA).

Search flight deals

Frequently asked questions about flying from Ontario to Washington

When did momondo last update prices for flights from Ontario to Washington?
Prices for flights from Ontario to Washington are updated daily.
How many operators does momondo search for flights from Ontario to Washington?
There are 5 operators available for flights from Ontario to Washington as of October 2026.
How old do you have to be to fly from Ontario to Washington?
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 Ontario to Washington.
What documentation or ID do you need to fly to Washington?
The necessary travel and health documents for your Washington 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 Region of Ontario to State of Washington?
momondo data reveals that the most frequently booked plane model on the route from Region of Ontario to State of Washington is Boeing 737 MAX 9, representing 32.82% of all bookings. The subsequent popular models are Airbus A220-300 at 20.25%, Boeing 777-300ER at 9.51%, and Boeing 737 MAX 8 at 7.98%.

Best airlines flying from Region of Ontario to State of Washington

Compare and see reviews for airlines that fly from Region of Ontario to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom C$ 230	Free Cancellation	Rating 7.8 8,650 reviews	Search Delta flights
Air Canada	PriceFrom C$ 257	Free Cancellation	Rating 7.1 11,770 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 259	Free Cancellation	Rating 7.4 10,362 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom C$ 275	Free Cancellation	Rating 7.9 13,065 reviews	Search Alaska Airlines flights
WestJet	PriceFrom C$ 304	Free Cancellation	Rating 7.2 3,446 reviews	Search WestJet flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Washington. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Washington from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

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

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

Price alerts on flights to Washington from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from Ontario to Washington from C$ 293

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 Washington departing on 10/11. 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 Ontario to Washington

Cheap round-trip flights

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Cheap last-minute flights

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Big names, great deals

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WestJet flights from Region of Ontario to State of Washington

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

Air Canada flights from Region of Ontario to State of Washington

Our best Air Canada deals on Region of Ontario to State of Washington flight tickets

momondo Fare Finder

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

See travel insights to Washington from

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

What is the cheapest month to fly to State of Washington?

What is the cheapest day to depart on your flight to State of Washington?

What is the cheapest time of day to depart on your flight to State of Washington?

What is the cheapest Ontario to Washington flight route?

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

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

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

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

Which airlines fly to State of Washington?

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

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

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

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

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