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Cheap flights from Toronto Region of Waterloo Intl Airport to Washington from C$ 238

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 11/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
7:00 a.m. - 7:50 p.m.
SEA
-
YKF
9h 50m
1 stop
C$ 434WestJet
Fri, 19 Jun - Tue, 23 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$ 442WestJet
Fri, 19 Jun - Wed, 24 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$ 443WestJet
Wed, 10 Jun - Sat, 13 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$ 447WestJet
Fri, 19 Jun - Tue, 23 Jun
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$ 469WestJet
Thu, 18 Jun - Wed, 24 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$ 471WestJet
Wed, 8 Jul - Tue, 8 Sep
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$ 474WestJet
Sat, 13 Jun - Sat, 20 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$ 479WestJet
Wed, 8 Jul - Mon, 13 Jul
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$ 481WestJet
Fri, 21 Aug - Mon, 31 Aug
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$ 490WestJet
Thu, 9 Jul - Mon, 13 Jul

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
10 Jun
YKF8:40 p.m.Toronto Region of Waterloo Intl
16h 00m
1 stop
SEA9:40 a.m.Seattle/Tacoma Intl
13 Jun
SEA7:35 p.m.Seattle/Tacoma Intl
21h 15m
1 stop
YKF7:50 p.m.Toronto Region of Waterloo Intl
C$ 443
WestJet
19 Jun
YKF8:40 p.m.Toronto Region of Waterloo Intl
25h 05m
1 stop
SEA6:45 p.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$ 447
WestJet
16 Jun
YKF8:40 p.m.Toronto Region of Waterloo Intl
25h 05m
1 stop
SEA6:45 p.m.Seattle/Tacoma Intl
24 Jun
SEA7:35 p.m.Seattle/Tacoma Intl
21h 15m
1 stop
YKF7:50 p.m.Toronto Region of Waterloo Intl
C$ 449

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 27 May 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 19/6

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

1 stop25h 05m

Seattle/Tacoma Intl

Tue 23/6

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

1 stop9h 50m

C$ 434

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Fri 19/6

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

1 stop25h 05m

Seattle/Tacoma Intl

Wed 24/6

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

1 stop9h 50m

C$ 442

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Wed 10/6

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

1 stop16h 00m

Seattle/Tacoma Intl

Sat 13/6

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

1 stop21h 15m

C$ 443

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Fri 19/6

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

1 stop25h 05m

Seattle/Tacoma Intl

Tue 23/6

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

1 stop9h 50m

C$ 447
Quickest round-trip

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Thu 18/6

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

1 stop16h 00m

Seattle/Tacoma Intl

Wed 24/6

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

1 stop9h 50m

C$ 469

TorontoPortland

YKF - PDX

YKFPDX

Toronto Region of Waterloo Intl

Wed 8/7

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

1 stop20h 10m

Portland

Tue 8/9

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

1 stop26h 20m

C$ 471

TorontoPortland

YKF - PDX

YKFPDX

Toronto Region of Waterloo Intl

Sat 13/6

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

1 stop20h 10m

Portland

Sat 20/6

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

1 stop26h 20m

C$ 474

TorontoPortland

YKF - PDX

YKFPDX

Toronto Region of Waterloo Intl

Wed 8/7

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

1 stop20h 10m

Portland

Mon 13/7

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

1 stop26h 20m

C$ 479

TorontoPortland

YKF - PDX

YKFPDX

Toronto Region of Waterloo Intl

Fri 21/8

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

1 stop20h 10m

Portland

Mon 31/8

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

1 stop26h 20m

C$ 481

TorontoPortland

YKF - PDX

YKFPDX

Toronto Region of Waterloo Intl

Thu 9/7

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

1 stop20h 10m

Portland

Mon 13/7

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

1 stop26h 20m

C$ 490

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.
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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 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.

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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