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Cheap flights from Toronto Region of Waterloo Intl Airport to Washington from C$ 246

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Toronto Region of Waterloo Intl Airport to Washington departing on 25/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Toronto Region of Waterloo Intl Airport to Washington

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
8:40 p.m. - 6:45 p.m.
YKF
-
SEA
25h 05m
1 stop
WestJet Logo
7:35 p.m. - 7:50 p.m.
SEA
-
YKF
21h 15m
1 stop
C$ 366WestJet
Fri, 29 May - Mon, 1 Jun
WestJet Logo
8:40 p.m. - 6:45 p.m.
YKF
-
SEA
25h 05m
1 stop
WestJet Logo
7:00 a.m. - 7:50 p.m.
SEA
-
YKF
9h 50m
1 stop
C$ 368WestJet
Fri, 12 Jun - Thu, 18 Jun
WestJet Logo
8:40 p.m. - 9:40 a.m.
YKF
-
SEA
16h 00m
1 stop
WestJet Logo
7:35 p.m. - 7:50 p.m.
SEA
-
YKF
21h 15m
1 stop
C$ 369WestJet
Mon, 4 May - Thu, 14 May
WestJet Logo
8:40 p.m. - 9:40 a.m.
YKF
-
SEA
16h 00m
1 stop
WestJet Logo
7:35 p.m. - 7:50 p.m.
SEA
-
YKF
21h 15m
1 stop
C$ 371WestJet
Mon, 15 Jun - Thu, 18 Jun
WestJet Logo
8:40 p.m. - 6:45 p.m.
YKF
-
SEA
25h 05m
1 stop
WestJet Logo
7:35 p.m. - 7:50 p.m.
SEA
-
YKF
21h 15m
1 stop
C$ 378WestJet
Mon, 18 May - Tue, 26 May
WestJet Logo
8:40 p.m. - 9:40 a.m.
YKF
-
SEA
16h 00m
1 stop
WestJet Logo
7:00 a.m. - 7:50 p.m.
SEA
-
YKF
9h 50m
1 stop
C$ 380WestJet
Thu, 4 Jun - Tue, 23 Jun
WestJet Logo
8:40 p.m. - 6:45 p.m.
YKF
-
SEA
25h 05m
1 stop
WestJet Logo
7:35 p.m. - 7:50 p.m.
SEA
-
YKF
21h 15m
1 stop
C$ 422WestJet
Mon, 18 May - Mon, 1 Jun
WestJet Logo
8:40 p.m. - 1:50 p.m.
YKF
-
PDX
20h 10m
1 stop
WestJet Logo
2:30 p.m. - 7:50 p.m.
PDX
-
YKF
26h 20m
1 stop
C$ 422WestJet
Mon, 17 Aug - Fri, 21 Aug
WestJet Logo
8:40 p.m. - 6:45 p.m.
YKF
-
SEA
25h 05m
1 stop
WestJet Logo
7:35 p.m. - 7:50 p.m.
SEA
-
YKF
21h 15m
1 stop
C$ 423WestJet
Mon, 15 Jun - Thu, 18 Jun
WestJet Logo
8:40 p.m. - 9:40 a.m.
YKF
-
SEA
16h 00m
1 stop
WestJet Logo
7:35 p.m. - 7:50 p.m.
SEA
-
YKF
21h 15m
1 stop
C$ 427WestJet
Fri, 29 May - Tue, 2 Jun

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

Our best WestJet deals on Toronto Region of Waterloo Intl Airport to State of Washington flight tickets
WestJet
4 Jun
YKF8:40 p.m.Toronto Region of Waterloo Intl
16h 00m
1 stop
SEA9:40 a.m.Seattle/Tacoma Intl
23 Jun
SEA7:00 a.m.Seattle/Tacoma Intl
9h 50m
1 stop
YKF7:50 p.m.Toronto Region of Waterloo Intl
C$ 344
WestJet
29 May
YKF8:40 p.m.Toronto Region of Waterloo Intl
25h 05m
1 stop
SEA6:45 p.m.Seattle/Tacoma Intl
1 Jun
SEA7:35 p.m.Seattle/Tacoma Intl
21h 15m
1 stop
YKF7:50 p.m.Toronto Region of Waterloo Intl
C$ 366
WestJet
12 Jun
YKF8:40 p.m.Toronto Region of Waterloo Intl
25h 05m
1 stop
SEA6:45 p.m.Seattle/Tacoma Intl
18 Jun
SEA7:00 a.m.Seattle/Tacoma Intl
9h 50m
1 stop
YKF7:50 p.m.Toronto Region of Waterloo Intl
C$ 368

momondo Fare Finder

 
Customize your flight search to find flights from Toronto Region of Waterloo Intl Airport to State of Washington 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 11 April 2026.
Use the filters below to find and compare flights from Toronto Region of Waterloo Intl Airport to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Fri 29/5

8:40 p.m.-6:45 p.m.

1 stop25h 05m

Seattle/Tacoma Intl

Mon 1/6

7:35 p.m.-7:50 p.m.

1 stop21h 15m

C$ 366

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Fri 12/6

8:40 p.m.-6:45 p.m.

1 stop25h 05m

Seattle/Tacoma Intl

Thu 18/6

7:00 a.m.-7:50 p.m.

1 stop9h 50m

C$ 368

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Mon 4/5

8:40 p.m.-9:40 a.m.

1 stop16h 00m

Seattle/Tacoma Intl

Thu 14/5

7:35 p.m.-7:50 p.m.

1 stop21h 15m

C$ 369

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Mon 15/6

8:40 p.m.-9:40 a.m.

1 stop16h 00m

Seattle/Tacoma Intl

Thu 18/6

7:35 p.m.-7:50 p.m.

1 stop21h 15m

C$ 371

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Mon 18/5

8:40 p.m.-6:45 p.m.

1 stop25h 05m

Seattle/Tacoma Intl

Tue 26/5

7:35 p.m.-7:50 p.m.

1 stop21h 15m

C$ 378
Quickest round-trip

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Thu 4/6

8:40 p.m.-9:40 a.m.

1 stop16h 00m

Seattle/Tacoma Intl

Tue 23/6

7:00 a.m.-7:50 p.m.

1 stop9h 50m

C$ 380

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Mon 18/5

8:40 p.m.-6:45 p.m.

1 stop25h 05m

Seattle/Tacoma Intl

Mon 1/6

7:35 p.m.-7:50 p.m.

1 stop21h 15m

C$ 422

TorontoPortland

YKF - PDX

YKFPDX

Toronto Region of Waterloo Intl

Mon 17/8

8:40 p.m.-1:50 p.m.

1 stop20h 10m

Portland

Fri 21/8

2:30 p.m.-7:50 p.m.

1 stop26h 20m

C$ 422

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Mon 15/6

8:40 p.m.-6:45 p.m.

1 stop25h 05m

Seattle/Tacoma Intl

Thu 18/6

7:35 p.m.-7:50 p.m.

1 stop21h 15m

C$ 423

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Fri 29/5

8:40 p.m.-9:40 a.m.

1 stop16h 00m

Seattle/Tacoma Intl

Tue 2/6

7:35 p.m.-7:50 p.m.

1 stop21h 15m

C$ 427

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington from

How to get the cheapest flight ticket from Toronto Region of Waterloo Intl Airport 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

Can stopping save me money on Toronto Region of Waterloo Intl Airport to State of Washington flights?

You could potentially save up to 63% on your flight if you consider stops on a Toronto Region of Waterloo Intl Airport to State of Washington flight.

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

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

Fastest flight time

10h 45m

Direct flights

None
The fastest flight from Toronto Region of Waterloo Intl Airport to State of Washington takes 10h 45m
There are no direct flights from Toronto Region of Waterloo Intl Airport to State of Washington. There are no popular flight routes from Toronto Region of Waterloo Intl Airport to State of Washington.
Search flight deals

Frequently asked questions about flying from Toronto Region of Waterloo Intl Airport to Washington

  • When did momondo last update prices for flights from Toronto Region of Waterloo Intl Airport to Washington?

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

  • How many operators does momondo search for flights from Toronto Region of Waterloo Intl Airport to Washington?

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Toronto Region of Waterloo Intl Airport to Washington.

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

    The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Toronto Region of Waterloo Intl Airport to State of Washington

Compare and see reviews for airlines that fly from Toronto Region of Waterloo Intl Airport to State of Washington with momondo
Airline
Rating
Free Cancellation
Price
WestJetPriceFrom C$ 128Free CancellationRating
7.2
3,320 reviews
Search WestJet flights

Why use momondo?

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

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

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

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

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

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 Washington from Toronto.

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

Of course. momondo tracks the price of Toronto to Washington 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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