Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Toronto Region of Waterloo Intl Airport to Washington from C$ 219

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 6/11. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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

Cheap round-trip flights

WestJet Logo
6:00 a.m. - 12:59 p.m.YKF-SEA
9h 59m1 stop
WestJet Logo
3:10 p.m. - 5:28 a.m.SEA-YKF
11h 18m1 stop
C$ 358WestJet
Find Deal
Sat, 25 Oct - Sun, 2 Nov
WestJet Logo
6:20 a.m. - 2:20 p.m.YKF-SEA
11h 00m1 stop
WestJet Logo
3:10 p.m. - 5:28 a.m.SEA-YKF
11h 18m1 stop
C$ 369WestJet
Find Deal
Thu, 30 Oct - Sun, 9 Nov
WestJet Logo
6:00 a.m. - 7:14 p.m.YKF-SEA
16h 14m1 stop
WestJet Logo
3:10 p.m. - 5:28 a.m.SEA-YKF
11h 18m1 stop
C$ 397WestJet
Find Deal
Sat, 25 Oct - Sun, 2 Nov
WestJet Logo
6:00 a.m. - 12:59 p.m.YKF-SEA
9h 59m1 stop
WestJet Logo
1:50 p.m. - 12:45 a.m.SEA-YKF
7h 55m1 stop
C$ 408WestJet
Find Deal
Thu, 18 Sep - Wed, 24 Sep
WestJet Logo
6:00 a.m. - 1:05 p.m.YKF-PDX
10h 05m1 stop
WestJet Logo
1:45 p.m. - 12:45 a.m.PDX-YKF
8h 00m1 stop
C$ 410WestJet
Find Deal
Fri, 3 Oct - Sun, 5 Oct
WestJet Logo
6:20 a.m. - 2:20 p.m.YKF-SEA
11h 00m1 stop
WestJet Logo
11:55 a.m. - 5:28 a.m.SEA-YKF
14h 33m2 stops
C$ 431WestJet
Find Deal
Tue, 18 Nov - Fri, 28 Nov
Logo
6:15 a.m. - 12:33 p.m.YKF-SEA
9h 18m1 stop
Logo
8:40 a.m. - 12:45 a.m.SEA-YKF
13h 05m1 stop
C$ 478
Find Deal
Sun, 12 Oct - Sun, 19 Oct
WestJet Logo
6:00 a.m. - 12:59 p.m.YKF-SEA
9h 59m1 stop
WestJet Logo
3:10 p.m. - 5:28 a.m.SEA-YKF
11h 18m1 stop
C$ 490WestJet
Find Deal
Fri, 3 Oct - Fri, 31 Oct
WestJet Logo
6:20 a.m. - 2:20 p.m.YKF-SEA
11h 00m1 stop
WestJet Logo
11:55 a.m. - 5:28 a.m.SEA-YKF
14h 33m2 stops
C$ 501WestJet
Find Deal
Thu, 6 Nov - Mon, 10 Nov
Logo
6:15 a.m. - 12:35 p.m.YKF-SEA
9h 20m1 stop
Logo
8:40 a.m. - 12:45 a.m.SEA-YKF
13h 05m1 stop
C$ 547
Find Deal
Sun, 21 Sep - Wed, 24 Sep

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
25 Oct
YKF6:00 a.m.Toronto Region of Waterloo Intl
9h 59m
1 stop
SEA12:59 p.m.Seattle/Tacoma Intl
2 Nov
SEA3:10 p.m.Seattle/Tacoma Intl
11h 18m
1 stop
YKF5:28 a.m.Toronto Region of Waterloo Intl
C$ 358
Find similar
WestJet
30 Oct
YKF6:20 a.m.Toronto Region of Waterloo Intl
11h 00m
1 stop
SEA2:20 p.m.Seattle/Tacoma Intl
9 Nov
SEA3:10 p.m.Seattle/Tacoma Intl
11h 18m
1 stop
YKF5:28 a.m.Toronto Region of Waterloo Intl
C$ 369
Find similar
WestJet
25 Oct
YKF6:00 a.m.Toronto Region of Waterloo Intl
16h 14m
1 stop
SEA7:14 p.m.Seattle/Tacoma Intl
2 Nov
SEA3:10 p.m.Seattle/Tacoma Intl
11h 18m
1 stop
YKF5:28 a.m.Toronto Region of Waterloo Intl
C$ 397
Find similar

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 21 August 2025.
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

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Sat 25/10

6:00 a.m.-12:59 p.m.

1 stop9h 59m

Seattle/Tacoma Intl

Sun 2/11

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

1 stop11h 18m

C$ 358

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Thu 30/10

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

1 stop11h 00m

Seattle/Tacoma Intl

Sun 9/11

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

1 stop11h 18m

C$ 369

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Sat 25/10

6:00 a.m.-7:14 p.m.

1 stop16h 14m

Seattle/Tacoma Intl

Sun 2/11

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

1 stop11h 18m

C$ 397

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Thu 18/9

6:00 a.m.-12:59 p.m.

1 stop9h 59m

Seattle/Tacoma Intl

Wed 24/9

1:50 p.m.-12:45 a.m.

1 stop7h 55m

C$ 408

TorontoPortland

YKF - PDX

YKFPDX

Toronto Region of Waterloo Intl

Fri 3/10

6:00 a.m.-1:05 p.m.

1 stop10h 05m

Portland

Sun 5/10

1:45 p.m.-12:45 a.m.

1 stop8h 00m

C$ 410

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Tue 18/11

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

1 stop11h 00m

Seattle/Tacoma Intl

Fri 28/11

11:55 a.m.-5:28 a.m.

2 stops14h 33m

C$ 431

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Sun 12/10

6:15 a.m.-12:33 p.m.

1 stop9h 18m

Seattle/Tacoma Intl

Sun 19/10

8:40 a.m.-12:45 a.m.

1 stop13h 05m

C$ 478

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Fri 3/10

6:00 a.m.-12:59 p.m.

1 stop9h 59m

Seattle/Tacoma Intl

Fri 31/10

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

1 stop11h 18m

C$ 490

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Thu 6/11

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

1 stop11h 00m

Seattle/Tacoma Intl

Mon 10/11

11:55 a.m.-5:28 a.m.

2 stops14h 33m

C$ 501

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Sun 21/9

6:15 a.m.-12:35 p.m.

1 stop9h 20m

Seattle/Tacoma Intl

Wed 24/9

8:40 a.m.-12:45 a.m.

1 stop13h 05m

C$ 547

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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

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 Toronto Region of Waterloo Intl Airport is on a Thursday. momondo users have found tickets for Thursday departures for as low as C$ 416. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to State of Washington on Tuesday is C$ 548.

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 Toronto Region of Waterloo Intl Airport to State of Washington in the afternoon for as low as C$ 424. 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$ 569 on average. Flights to State of Washington from Toronto Region of Waterloo Intl Airport in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You could potentially save up to 68% 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

Direct flights

None
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

  • 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$ 184Free CancellationRating
7.2
3,044 reviews
Search WestJet flights
Air CanadaPriceFrom C$ 379Free CancellationRating
7.1
10,000 reviews
Search Air Canada 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.

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 26/8
Tue 2/9
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Washington

Popular Cities in Washington

Popular flights according to clicks in the last 7 days on momondo
Flights to Fort Lauderdalefrom C$ 153
Flights to Orlandofrom C$ 203
Flights to New Yorkfrom C$ 232
Flights to Las Vegasfrom C$ 188
Flights to Los Angelesfrom C$ 140
Flights to Miamifrom C$ 353
Flights to San Franciscofrom C$ 135
Flights to Honolulufrom C$ 300
Flights to Phoenixfrom C$ 233
Flights to Tampafrom C$ 179
Flights to Chicagofrom C$ 154
Flights to Dallasfrom C$ 333