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 45m on average. If you fly from Bellingham (another popular airport in State of Washington) to Toronto Pearson Intl Airport, then the average flight time is 6h 45m.

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 61% 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.

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

WestJet, Air Canada, and United Airlines are the most popular carriers operating 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 May 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$ 144 Cheap Flights from Washington to Ontario in 2026

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 28 per week as of May 2026. The most frequent departure day is Mon, with 18% of weekly flights leaving on this day.

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

As of May 2026, there are 4 flights per day flying from State of Washington to Region of Ontario. The most common time of day flights depart is 8:00a.m., with 100% of flights taking off at noon.

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Find the cheapest flights from Washington to Ontario

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:30 a.m. - 10:45 p.m.

SEA

YYZ

9h 15m

1 stop

12:00 p.m. - 6:45 p.m.

YYZ

SEA

9h 45m

2 stops

C$ 373WestJet

Wed, 24 Jun - Mon, 29 Jun

10:30 a.m. - 11:59 p.m.

SEA

YYZ

10h 29m

2 stops

3:50 p.m. - 9:00 p.m.

YYZ

SEA

8h 10m

1 stop

C$ 376WestJet

Tue, 9 Jun - Tue, 16 Jun

10:30 a.m. - 9:15 p.m.

SEA

YYZ

7h 45m

1 stop

6:10 a.m. - 6:45 p.m.

YYZ

SEA

15h 35m

2 stops

C$ 377WestJet

Sat, 1 Aug - Sun, 9 Aug

7:35 p.m. - 5:45 a.m.

SEA

YYZ

7h 10m

1 stop

3:50 p.m. - 9:00 p.m.

YYZ

SEA

8h 10m

1 stop

C$ 379WestJet

Thu, 4 Jun - Tue, 16 Jun

5:45 a.m. - 6:22 p.m.

SEA

YTZ

9h 37m

2 stops

8:55 p.m. - 10:05 a.m.

YTZ

SEA

16h 10m

2 stops

C$ 464Air Canada

Sat, 6 Jun - Fri, 12 Jun

7:20 p.m. - 10:57 a.m.

SEA

YTZ

12h 37m

2 stops

12:15 p.m. - 7:05 p.m.

YTZ

SEA

9h 50m

1 stop

C$ 494Air Canada

Sat, 6 Jun - Fri, 12 Jun

2:30 p.m. - 12:40 a.m.

PDX

YOW

7h 10m

1 stop

6:05 p.m. - 9:31 a.m.

YOW

PDX

18h 26m

2 stops

C$ 548Multiple Airlines

Sat, 4 Jul - Mon, 13 Jul

10:30 a.m. - 5:15 p.m.

SEA

YHM

27h 45m

1 stop

8:50 a.m. - 9:00 p.m.

YHM

SEA

15h 10m

2 stops

C$ 580Multiple Airlines

Mon, 8 Jun - Mon, 15 Jun

10:40 p.m. - 10:06 a.m.

PDX

YTZ

8h 26m

1 stop

2:55 p.m. - 9:24 p.m.

YTZ

PDX

9h 29m

1 stop

C$ 644United Airlines

Fri, 5 Jun - Tue, 9 Jun

10:40 p.m. - 10:06 a.m.

PDX

YTZ

8h 26m

1 stop

12:15 p.m. - 6:47 p.m.

YTZ

PDX

9h 32m

1 stop

C$ 650United Airlines

Fri, 12 Jun - Sat, 20 Jun

WestJet flights from State of Washington to Region of Ontario

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

WestJet

3 Sep

SEA10:30 a.m.Seattle/Tacoma Intl

7h 45m

1 stop

YYZ9:15 p.m.Toronto Pearson Intl

7 Sep

YYZ12:00 p.m.Toronto Pearson Intl

9h 45m

1 stop

SEA6:45 p.m.Seattle/Tacoma Intl

C$ 372

WestJet

24 Jun

SEA10:30 a.m.Seattle/Tacoma Intl

9h 15m

1 stop

YYZ10:45 p.m.Toronto Pearson Intl

29 Jun

YYZ12:00 p.m.Toronto Pearson Intl

9h 45m

2 stops

SEA6:45 p.m.Seattle/Tacoma Intl

C$ 373

WestJet

9 Jun

SEA10:30 a.m.Seattle/Tacoma Intl

10h 29m

2 stops

YYZ11:59 p.m.Toronto Pearson Intl

16 Jun

YYZ3:50 p.m.Toronto Pearson Intl

8h 10m

1 stop

SEA9:00 p.m.Seattle/Tacoma Intl

C$ 376

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

26 May

PDX11:12 p.m.Portland

6h 47m

1 stop

YYZ8:59 a.m.Toronto Pearson Intl

1 Jun

YYZ4:04 p.m.Toronto Pearson Intl

8h 58m

1 stop

PDX10:02 p.m.Portland

C$ 500

Delta

21 May

PDX2:30 p.m.Portland

7h 35m

1 stop

YYZ1:05 a.m.Toronto Pearson Intl

26 May

YYZ6:12 p.m.Toronto Pearson Intl

6h 50m

1 stop

PDX10:02 p.m.Portland

C$ 613

Delta

24 May

PDX7:05 a.m.Portland

13h 36m

2 stops

YUL11:41 p.m.Montreal Pierre Elliott Trudeau Intl

2 Jun

YUL12:40 p.m.Montreal Pierre Elliott Trudeau Intl

12h 06m

1 stop

PDX9:46 p.m.Portland

C$ 636

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 - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 24/6

10:30 a.m.-10:45 p.m.

1 stop9h 15m

Toronto Pearson Intl

Mon 29/6

12:00 p.m.-6:45 p.m.

2 stops9h 45m

C$ 373

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 9/6

10:30 a.m.-11:59 p.m.

2 stops10h 29m

Toronto Pearson Intl

Tue 16/6

3:50 p.m.-9:00 p.m.

1 stop8h 10m

C$ 376

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 1/8

10:30 a.m.-9:15 p.m.

1 stop7h 45m

Toronto Pearson Intl

Sun 9/8

6:10 a.m.-6:45 p.m.

2 stops15h 35m

C$ 377

Quickest round-trip

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Thu 4/6

7:35 p.m.-5:45 a.m.

1 stop7h 10m

Toronto Pearson Intl

Tue 16/6

3:50 p.m.-9:00 p.m.

1 stop8h 10m

C$ 379

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 6/6

5:45 a.m.-6:22 p.m.

2 stops9h 37m

Toronto Island

Fri 12/6

8:55 p.m.-10:05 a.m.

2 stops16h 10m

C$ 464

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 6/6

7:20 p.m.-10:57 a.m.

2 stops12h 37m

Toronto Island

Fri 12/6

12:15 p.m.-7:05 p.m.

1 stop9h 50m

C$ 494

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sat 4/7

2:30 p.m.-12:40 a.m.

1 stop7h 10m

Ottawa

Mon 13/7

6:05 p.m.-9:31 a.m.

2 stops18h 26m

C$ 548

SeattleHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Mon 8/6

10:30 a.m.-5:15 p.m.

1 stop27h 45m

Hamilton

Mon 15/6

8:50 a.m.-9:00 p.m.

2 stops15h 10m

C$ 580

PortlandToronto

PDX - YTZ

PDXYTZ

Portland

Fri 5/6

10:40 p.m.-10:06 a.m.

1 stop8h 26m

Toronto Island

Tue 9/6

2:55 p.m.-9:24 p.m.

1 stop9h 29m

C$ 644

PortlandToronto

PDX - YTZ

PDXYTZ

Portland

Fri 12/6

10:40 p.m.-10:06 a.m.

1 stop8h 26m

Toronto Island

Sat 20/6

12:15 p.m.-6:47 p.m.

1 stop9h 32m

C$ 650

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, November 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$ 120. If you are unable to visit Region of Ontario during the month of November, 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$ 127.

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$ 532. The most expensive day to fly to Region of Ontario is Monday, with ticket prices averaging around C$ 964.

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$ 531 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$ 425 on momondo.

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

You could potentially save up to 17% 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	C$ 292
Fastest flight time	4h 45m
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$ 292. The best round-trip flight deal from State of Washington to Region of Ontario found on momondo in the last 72 hours is C$ 452.

The fastest flight from State of Washington to Region of Ontario takes 4h 45m

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 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 May 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 (54.37% of total bookings). The next most popular plane models are Boeing 737 MAX 8 (7.04%), Airbus A330-900neo (5.97%), and Boeing 737-900 Passenger/BBJ3 (winglets) (4.48%).

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 Canada	PriceFrom C$ 256	Free Cancellation	Rating 7.1 11,017 reviews	Search Air Canada flights
WestJet	PriceFrom C$ 282	Free Cancellation	Rating 7.2 3,332 reviews	Search WestJet flights
Alaska Airlines	PriceFrom C$ 302	Free Cancellation	Rating 7.9 12,356 reviews	Search Alaska 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?

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$ 186

Flights to Vancouverfrom C$ 107

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Flights to Halifaxfrom C$ 196

Flights to Kelownafrom C$ 152

Flights to Saskatoonfrom C$ 193

Flights to Reginafrom C$ 165

Flights to St. John'sfrom C$ 280

Flights to Québec Cityfrom C$ 265

Cheap flights from Washington to Ontario from C$ 144

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 6/8. 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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WestJet flights from State of Washington to Region of Ontario

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

Delta flights from State of Washington to Region of Ontario

Our best Delta 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?

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

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

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

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