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Cheap flights from Washington to Toronto from C$ 175

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 Toronto departing on 29/3. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
3:10 p.m. - 5:29 a.m.SEA-YKF
11h 19m1 stop
WestJet Logo
6:20 a.m. - 2:19 p.m.YKF-SEA
10h 59m1 stop
C$ 371WestJet
Find Deal
Mon, 6 Apr - Thu, 9 Apr
WestJet Logo
3:10 p.m. - 5:29 a.m.SEA-YKF
11h 19m1 stop
WestJet Logo
7:00 p.m. - 2:19 p.m.YKF-SEA
22h 19m1 stop
C$ 374WestJet
Find Deal
Sun, 22 Feb - Sat, 28 Feb
WestJet Logo
3:10 p.m. - 5:29 a.m.SEA-YKF
11h 19m1 stop
WestJet Logo
6:20 a.m. - 2:19 p.m.YKF-SEA
10h 59m1 stop
C$ 397WestJet
Find Deal
Mon, 16 Feb - Mon, 23 Feb
Multiple Airlines Logo
3:10 p.m. - 5:29 a.m.SEA-YKF
11h 19m1 stop
Multiple Airlines Logo
7:05 a.m. - 2:19 p.m.YKF-SEA
10h 14m1 stop
C$ 472Multiple Airlines
Find Deal
Wed, 25 Mar - Sun, 29 Mar
Multiple Airlines Logo
3:10 p.m. - 5:28 a.m.SEA-YKF
11h 18m1 stop
Multiple Airlines Logo
7:05 a.m. - 2:20 p.m.YKF-SEA
10h 15m1 stop
C$ 484Multiple Airlines
Find Deal
Fri, 28 Nov - Thu, 4 Dec
Multiple Airlines Logo
3:40 p.m. - 4:00 p.m.SEA-YKF
21h 20m2 stops
Multiple Airlines Logo
7:05 a.m. - 2:20 p.m.YKF-SEA
10h 15m1 stop
C$ 500Multiple Airlines
Find Deal
Fri, 28 Nov - Thu, 4 Dec
WestJet Logo
11:55 a.m. - 5:29 a.m.SEA-YKF
14h 34m2 stops
WestJet Logo
7:00 p.m. - 2:19 p.m.YKF-SEA
22h 19m1 stop
C$ 503WestJet
Find Deal
Sun, 22 Feb - Sat, 28 Feb
Multiple Airlines Logo
3:10 p.m. - 5:29 a.m.SEA-YKF
11h 19m1 stop
Multiple Airlines Logo
7:05 a.m. - 10:21 a.m.YKF-SEA
30h 16m2 stops
C$ 511Multiple Airlines
Find Deal
Wed, 25 Mar - Sun, 29 Mar
Multiple Airlines Logo
3:10 p.m. - 5:28 a.m.SEA-YKF
11h 18m1 stop
Multiple Airlines Logo
7:05 a.m. - 2:20 p.m.YKF-SEA
10h 15m1 stop
C$ 512Multiple Airlines
Find Deal
Fri, 5 Dec - Sun, 7 Dec
Multiple Airlines Logo
3:40 p.m. - 5:28 a.m.SEA-YKF
10h 48m2 stops
Multiple Airlines Logo
6:20 a.m. - 7:16 p.m.YKF-SEA
15h 56m3 stops
C$ 556Multiple Airlines
Find Deal
Fri, 28 Nov - Thu, 4 Dec

WestJet flights from State of Washington to Toronto Region of Waterloo Intl Airport

Our best WestJet deals on State of Washington to Toronto Region of Waterloo Intl Airport flight tickets
WestJet
6 Apr
SEA3:10 p.m.Seattle/Tacoma Intl
11h 19m
1 stop
YKF5:29 a.m.Toronto Region of Waterloo Intl
9 Apr
YKF6:20 a.m.Toronto Region of Waterloo Intl
10h 59m
1 stop
SEA2:19 p.m.Seattle/Tacoma Intl
C$ 371
Find similar
WestJet
22 Feb
SEA3:10 p.m.Seattle/Tacoma Intl
11h 19m
1 stop
YKF5:29 a.m.Toronto Region of Waterloo Intl
28 Feb
YKF7:00 p.m.Toronto Region of Waterloo Intl
22h 19m
1 stop
SEA2:19 p.m.Seattle/Tacoma Intl
C$ 374
Find similar
WestJet
16 Feb
SEA3:10 p.m.Seattle/Tacoma Intl
11h 19m
1 stop
YKF5:29 a.m.Toronto Region of Waterloo Intl
23 Feb
YKF6:20 a.m.Toronto Region of Waterloo Intl
10h 59m
1 stop
SEA2:19 p.m.Seattle/Tacoma Intl
C$ 397
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to Toronto Region of Waterloo Intl Airport 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 96,600 searches. Data last updated 6 November 2025.
Use the filters below to find and compare flights from Washington to Toronto Region of Waterloo Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Mon 6/4

3:10 p.m.-5:29 a.m.

1 stop11h 19m

Toronto Region of Waterloo Intl

Thu 9/4

6:20 a.m.-2:19 p.m.

1 stop10h 59m

C$ 371

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Sun 22/2

3:10 p.m.-5:29 a.m.

1 stop11h 19m

Toronto Region of Waterloo Intl

Sat 28/2

7:00 p.m.-2:19 p.m.

1 stop22h 19m

C$ 374

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Mon 16/2

3:10 p.m.-5:29 a.m.

1 stop11h 19m

Toronto Region of Waterloo Intl

Mon 23/2

6:20 a.m.-2:19 p.m.

1 stop10h 59m

C$ 397

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Wed 25/3

3:10 p.m.-5:29 a.m.

1 stop11h 19m

Toronto Region of Waterloo Intl

Sun 29/3

7:05 a.m.-2:19 p.m.

1 stop10h 14m

C$ 472

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Fri 28/11

3:10 p.m.-5:28 a.m.

1 stop11h 18m

Toronto Region of Waterloo Intl

Thu 4/12

7:05 a.m.-2:20 p.m.

1 stop10h 15m

C$ 484

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Fri 28/11

3:40 p.m.-4:00 p.m.

2 stops21h 20m

Toronto Region of Waterloo Intl

Thu 4/12

7:05 a.m.-2:20 p.m.

1 stop10h 15m

C$ 500

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Sun 22/2

11:55 a.m.-5:29 a.m.

2 stops14h 34m

Toronto Region of Waterloo Intl

Sat 28/2

7:00 p.m.-2:19 p.m.

1 stop22h 19m

C$ 503

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Wed 25/3

3:10 p.m.-5:29 a.m.

1 stop11h 19m

Toronto Region of Waterloo Intl

Sun 29/3

7:05 a.m.-10:21 a.m.

2 stops30h 16m

C$ 511

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Fri 5/12

3:10 p.m.-5:28 a.m.

1 stop11h 18m

Toronto Region of Waterloo Intl

Sun 7/12

7:05 a.m.-2:20 p.m.

1 stop10h 15m

C$ 512

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Fri 28/11

3:40 p.m.-5:28 a.m.

2 stops10h 48m

Toronto Region of Waterloo Intl

Thu 4/12

6:20 a.m.-7:16 p.m.

3 stops15h 56m

C$ 556

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from State of Washington to Toronto Region of Waterloo Intl Airport

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 airline that flies from Washington to Toronto Region of Waterloo Intl?

WestJet is the most popular carrier operating from Washington to Toronto Region of Waterloo Intl

Cheap State of Washington to Toronto Region of Waterloo Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Toronto Region of Waterloo Intl Airport

Direct flights

None
There are no direct flights from State of Washington to Toronto Region of Waterloo Intl Airport. There are no popular flight routes from State of Washington to Toronto Region of Waterloo Intl Airport.
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  • When did momondo last update prices for flights from Washington to Toronto Region of Waterloo Intl Airport?

    Prices for flights from Washington to Toronto Region of Waterloo Intl Airport are updated daily.

  • How old do you have to be to fly from Washington to Toronto Region of Waterloo Intl Airport?

    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 Toronto Region of Waterloo Intl Airport.

  • What documentation or ID do you need to fly to Toronto Region of Waterloo Intl Airport?

    The travel and health documents you'll need for your trip to Toronto Region of Waterloo Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Toronto Region of Waterloo Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Toronto?

Book flights to Toronto if you plan to visit one of these locations
Sauble Beach
Port Elgin
Southampton
Apsley

Why use momondo?

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

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 Toronto from Washington.

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

momondo does allow users to show only those flights to Toronto from Washington which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington to Toronto.

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

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

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