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 Toronto and flying into Seattle (one of the most popular routes), then the duration is 8h 24m on average. Another popular route from Region of Ontario to State of Washington is flying from Ottawa to Seattle, which will take roughly 8h 25m. Keep in mind that layovers or delays could extend your travel time.

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

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

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

31 flights are operational weekly from Region of Ontario to State of Washington as of March 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.

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

As of March 2026, 4 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 4:00p.m., with 51% of daily flights taking off in the afternoon.

Which airlines fly to State of Washington?

Alaska Airlines, Air Canada and WestJet are the top three most popular airlines that fly to State of Washington from Region of Ontario according to our data. Alaska Airlines is the first choice among our users, with 34% of people opting to fly with this airline when travelling to State of Washington. Keep in mind that there are 6 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

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 7 operators available for flights from Ontario to Washington as of March 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$ 164 Cheap Flights from Ontario to Washington in 2026

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Find the cheapest flights from Ontario to Washington

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:45 a.m. - 2:19 p.m.

YYZ

SEA

9h 34m

1 stop

3:20 p.m. - 5:58 a.m.

SEA

YYZ

11h 38m

2 stops

C$ 262WestJet

Wed, 15 Apr - Sat, 18 Apr

8:00 a.m. - 3:01 p.m.

YYZ

SEA

10h 01m

1 stop

8:00 a.m. - 3:43 p.m.

SEA

YYZ

4h 43mdirect

C$ 281Air Canada

Thu, 19 Mar - Thu, 26 Mar

7:45 a.m. - 2:19 p.m.

YYZ

SEA

9h 34m

1 stop

3:20 p.m. - 6:13 a.m.

SEA

YYZ

11h 53m

1 stop

C$ 289WestJet

Wed, 15 Apr - Sat, 18 Apr

6:15 p.m. - 10:56 p.m.

YYZ

SEA

7h 41m

1 stop

7:55 a.m. - 3:35 p.m.

SEA

YYZ

4h 40mdirect

C$ 290Multiple Airlines

Fri, 20 Mar - Sat, 28 Mar

6:15 p.m. - 10:57 p.m.

YYZ

SEA

7h 42m

1 stop

8:00 a.m. - 3:43 p.m.

SEA

YYZ

4h 43mdirect

C$ 297Air Canada

Tue, 17 Mar - Tue, 24 Mar

10:45 a.m. - 9:14 p.m.

YYZ

PDX

13h 29m

1 stop

11:59 p.m. - 11:49 a.m.

PDX

YYZ

8h 50m

1 stop

C$ 367United Airlines

Wed, 15 Apr - Wed, 15 Apr

7:00 a.m. - 11:46 a.m.

YYZ

PDX

7h 46m

1 stop

11:59 p.m. - 11:49 a.m.

PDX

YYZ

8h 50m

1 stop

C$ 374United Airlines

Tue, 14 Apr - Wed, 15 Apr

9:15 a.m. - 8:42 p.m.

YUL

PDX

14h 27m

1 stop

11:59 p.m. - 9:26 p.m.

PDX

YUL

18h 27m

1 stop

C$ 415Lufthansa

Sat, 11 Apr - Fri, 17 Apr

12:55 p.m. - 9:42 p.m.

YUL

PDX

11h 47m

1 stop

1:55 p.m. - 11:26 p.m.

PDX

YUL

6h 31m

1 stop

C$ 426Delta

Tue, 14 Apr - Sat, 18 Apr

6:00 a.m. - 4:56 p.m.

YUL

PDX

13h 56m

2 stops

7:32 p.m. - 11:59 a.m.

PDX

YUL

13h 27m

2 stops

C$ 427Delta

Sat, 11 Apr - Fri, 17 Apr

Delta flights from Region of Ontario to State of Washington

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

Delta

23 Mar

YYZ12:25 p.m.Toronto Pearson Intl

12h 40m

1 stop

SEA10:05 p.m.Seattle/Tacoma Intl

29 Mar

SEA11:15 p.m.Seattle/Tacoma Intl

6h 50m

1 stop

YYZ9:05 a.m.Toronto Pearson Intl

C$ 380

Delta

19 Mar

YYZ3:59 p.m.Toronto Pearson Intl

8h 54m

1 stop

PDX9:53 p.m.Portland

29 Mar

PDX11:15 p.m.Portland

6h 50m

1 stop

YYZ9:05 a.m.Toronto Pearson Intl

C$ 402

Delta

10 Mar

YYZ3:59 p.m.Toronto Pearson Intl

9h 16m

1 stop

SEA10:15 p.m.Seattle/Tacoma Intl

12 Mar

SEA11:45 a.m.Seattle/Tacoma Intl

9h 12m

1 stop

YYZ11:57 p.m.Toronto Pearson Intl

C$ 411

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

17 Mar

YYZ6:15 p.m.Toronto Pearson Intl

7h 42m

1 stop

SEA10:57 p.m.Seattle/Tacoma Intl

24 Mar

SEA8:00 a.m.Seattle/Tacoma Intl

4h 43m

YYZ3:43 p.m.Toronto Pearson Intl

C$ 297

Air Canada

20 Mar

YYZ6:15 p.m.Toronto Pearson Intl

7h 41m

1 stop

SEA10:56 p.m.Seattle/Tacoma Intl

28 Mar

SEA5:40 a.m.Seattle/Tacoma Intl

14h 57m

1 stop

YYZ11:37 p.m.Toronto Pearson Intl

C$ 304

Air Canada

1 Apr

YYZ7:30 p.m.Toronto Pearson Intl

5h 23m

SEA9:53 p.m.Seattle/Tacoma Intl

8 Apr

SEA5:40 a.m.Seattle/Tacoma Intl

10h 27m

2 stops

YYZ7:07 p.m.Toronto Pearson Intl

C$ 305

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

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Wed 15/4

7:45 a.m.-2:19 p.m.

1 stop9h 34m

Seattle/Tacoma Intl

Sat 18/4

3:20 p.m.-5:58 a.m.

2 stops11h 38m

C$ 262

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 19/3

8:00 a.m.-3:01 p.m.

1 stop10h 01m

Seattle/Tacoma Intl

Thu 26/3

8:00 a.m.-3:43 p.m.

Nonstop4h 43m

C$ 281

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Wed 15/4

7:45 a.m.-2:19 p.m.

1 stop9h 34m

Seattle/Tacoma Intl

Sat 18/4

3:20 p.m.-6:13 a.m.

1 stop11h 53m

C$ 289

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Fri 20/3

6:15 p.m.-10:56 p.m.

1 stop7h 41m

Seattle/Tacoma Intl

Sat 28/3

7:55 a.m.-3:35 p.m.

Nonstop4h 40m

C$ 290

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Tue 17/3

6:15 p.m.-10:57 p.m.

1 stop7h 42m

Seattle/Tacoma Intl

Tue 24/3

8:00 a.m.-3:43 p.m.

Nonstop4h 43m

C$ 297

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Wed 15/4

10:45 a.m.-9:14 p.m.

1 stop13h 29m

Portland

Wed 15/4

11:59 p.m.-11:49 a.m.

1 stop8h 50m

C$ 367

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Tue 14/4

7:00 a.m.-11:46 a.m.

1 stop7h 46m

Portland

Wed 15/4

11:59 p.m.-11:49 a.m.

1 stop8h 50m

C$ 374

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Sat 11/4

9:15 a.m.-8:42 p.m.

1 stop14h 27m

Portland

Fri 17/4

11:59 p.m.-9:26 p.m.

1 stop18h 27m

C$ 415

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Tue 14/4

12:55 p.m.-9:42 p.m.

1 stop11h 47m

Portland

Sat 18/4

1:55 p.m.-11:26 p.m.

1 stop6h 31m

C$ 426

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Sat 11/4

6:00 a.m.-4:56 p.m.

2 stops13h 56m

Portland

Fri 17/4

7:32 p.m.-11:59 a.m.

2 stops13h 27m

C$ 427

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$ 355. If you’re not able to fly to State of Washington in February, then November is your next best option. Flight prices from Region of Ontario to State of Washington during November average around C$ 419.

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 Thursday. momondo users have found tickets for Thursday departures for as low as C$ 539. 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$ 817.

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 afternoon. momondo users have found flights departing from Region of Ontario to State of Washington in the afternoon for as low as C$ 524. 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$ 844 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 to State of 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$ 466 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$ 406 on momondo.

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

There are 4 cabin classes available to choose from on Ontario to 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?

You could potentially save up to 36% on your flight if you consider stops on a Region of Ontario to State of Washington flight.

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$ 281
Fastest flight time	5h 19m
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$ 281. The best round-trip flight deal from Region of Ontario to State of Washington found on momondo in the last 72 hours is C$ 389.

The fastest flight from Region of Ontario to State of Washington takes 5h 19m

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

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 7 operators available for flights from Ontario to Washington as of March 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 Airbus A220-300, representing 58.92% of all bookings. The subsequent popular models are Airbus A320-100/200 at 9.87%, Boeing 737 MAX 8 at 4.25%, and Embraer 195 E2 at 3.93%.

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
WestJet	PriceFrom C$ 126	Free Cancellation	Rating 7.2 3,279 reviews	Search WestJet flights
Delta	PriceFrom C$ 250	Free Cancellation	Rating 7.9 8,239 reviews	Search Delta flights
United Airlines	PriceFrom C$ 262	Free Cancellation	Rating 7.4 9,377 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom C$ 270	Free Cancellation	Rating 8.0 11,978 reviews	Search Alaska Airlines flights
Air Canada	PriceFrom C$ 313	Free Cancellation	Rating 7.1 10,770 reviews	Search Air Canada flights
Hawaiian Airlines	PriceFrom C$ 406	Free Cancellation	Rating 7.8 2,836 reviews	Search Hawaiian Airlines 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$ 176

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 28/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Region of Ontario to State of Washington

Our best Delta 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

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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 to State of Washington?

What cabin class options are available on Ontario to 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

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

Best price found

Fastest flight time

Direct flights

Airports in State of Washington

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

Why use momondo?

An easier way to manage your State of Washington 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 Washington

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