Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Toronto Region of Waterloo Intl Airport to Washington from C$ 233

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 5/2. 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

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

Enter your travel dates to find the best prices.
WestJet Logo
6:20 a.m. - 2:19 p.m.
YKF
-
SEA
10h 59m1 stop
WestJet Logo
3:10 p.m. - 5:29 a.m.
SEA
-
YKF
11h 19m1 stop
C$ 325WestJet
Mon, 16 Mar - Mon, 23 Mar
WestJet Logo
6:20 a.m. - 2:19 p.m.
YKF
-
SEA
10h 59m1 stop
WestJet Logo
3:10 p.m. - 5:29 a.m.
SEA
-
YKF
11h 19m1 stop
C$ 344WestJet
Thu, 5 Mar - Mon, 9 Mar
WestJet Logo
6:20 a.m. - 2:19 p.m.
YKF
-
SEA
10h 59m1 stop
WestJet Logo
3:10 p.m. - 5:29 a.m.
SEA
-
YKF
11h 19m1 stop
C$ 413WestJet
Thu, 26 Feb - Mon, 2 Mar
Multiple Airlines Logo
6:20 a.m. - 7:52 p.m.
YKF
-
SEA
16h 32m1 stop
Multiple Airlines Logo
11:55 a.m. - 5:29 a.m.
SEA
-
YKF
14h 34m2 stops
C$ 416Multiple Airlines
Mon, 2 Feb - Mon, 9 Feb
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$ 465WestJet
Mon, 12 Jan - Fri, 16 Jan
WestJet Logo
6:00 a.m. - 8:28 p.m.
YKF
-
SEA
17h 28m1 stop
WestJet Logo
7:05 a.m. - 12:45 a.m.
SEA
-
YKF
14h 40m1 stop
C$ 482WestJet
Tue, 12 May - Fri, 22 May
WestJet Logo
6:20 a.m. - 2:19 p.m.
YKF
-
SEA
10h 59m1 stop
WestJet Logo
3:10 p.m. - 5:29 a.m.
SEA
-
YKF
11h 19m1 stop
C$ 507WestJet
Mon, 2 Feb - Mon, 9 Feb
WestJet Logo
6:20 a.m. - 2:19 p.m.
YKF
-
SEA
10h 59m1 stop
WestJet Logo
11:55 a.m. - 5:29 a.m.
SEA
-
YKF
14h 34m3 stops
C$ 518WestJet
Mon, 2 Feb - Mon, 9 Feb
Multiple Airlines Logo
6:20 a.m. - 7:52 p.m.
YKF
-
SEA
16h 32m1 stop
Multiple Airlines Logo
9:50 a.m. - 5:29 a.m.
SEA
-
YKF
16h 39m2 stops
C$ 526Multiple Airlines
Tue, 10 Feb - Wed, 18 Feb
Multiple Airlines Logo
7:05 a.m. - 7:52 p.m.
YKF
-
SEA
15h 47m1 stop
Multiple Airlines Logo
5:55 p.m. - 4:00 p.m.
SEA
-
YKF
43h 05m2 stops
C$ 544Multiple Airlines
Thu, 5 Feb - Thu, 12 Feb

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
16 Mar
YKF6:20 a.m.Toronto Region of Waterloo Intl
10h 59m
1 stop
SEA2:19 p.m.Seattle/Tacoma Intl
23 Mar
SEA3:10 p.m.Seattle/Tacoma Intl
11h 19m
1 stop
YKF5:29 a.m.Toronto Region of Waterloo Intl
C$ 325
Find similar
WestJet
5 Mar
YKF6:20 a.m.Toronto Region of Waterloo Intl
10h 59m
1 stop
SEA2:19 p.m.Seattle/Tacoma Intl
9 Mar
SEA3:10 p.m.Seattle/Tacoma Intl
11h 19m
1 stop
YKF5:29 a.m.Toronto Region of Waterloo Intl
C$ 344
Find similar
WestJet
26 Feb
YKF6:20 a.m.Toronto Region of Waterloo Intl
10h 59m
1 stop
SEA2:19 p.m.Seattle/Tacoma Intl
2 Mar
SEA3:10 p.m.Seattle/Tacoma Intl
11h 19m
1 stop
YKF5:29 a.m.Toronto Region of Waterloo Intl
C$ 413
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 23 December 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

Mon 16/3

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

1 stop10h 59m

Seattle/Tacoma Intl

Mon 23/3

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

1 stop11h 19m

C$ 325

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Thu 5/3

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

1 stop10h 59m

Seattle/Tacoma Intl

Mon 9/3

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

1 stop11h 19m

C$ 344

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Thu 26/2

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

1 stop10h 59m

Seattle/Tacoma Intl

Mon 2/3

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

1 stop11h 19m

C$ 413

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Mon 2/2

6:20 a.m.-7:52 p.m.

1 stop16h 32m

Seattle/Tacoma Intl

Mon 9/2

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

2 stops14h 34m

C$ 416

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Mon 12/1

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

1 stop11h 00m

Seattle/Tacoma Intl

Fri 16/1

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

1 stop11h 18m

C$ 465

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Tue 12/5

6:00 a.m.-8:28 p.m.

1 stop17h 28m

Seattle/Tacoma Intl

Fri 22/5

7:05 a.m.-12:45 a.m.

1 stop14h 40m

C$ 482

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Mon 2/2

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

1 stop10h 59m

Seattle/Tacoma Intl

Mon 9/2

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

1 stop11h 19m

C$ 507

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Mon 2/2

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

1 stop10h 59m

Seattle/Tacoma Intl

Mon 9/2

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

3 stops14h 34m

C$ 518

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Tue 10/2

6:20 a.m.-7:52 p.m.

1 stop16h 32m

Seattle/Tacoma Intl

Wed 18/2

9:50 a.m.-5:29 a.m.

2 stops16h 39m

C$ 526

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Thu 5/2

7:05 a.m.-7:52 p.m.

1 stop15h 47m

Seattle/Tacoma Intl

Thu 12/2

5:55 p.m.-4:00 p.m.

2 stops43h 05m

C$ 544

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$ 413. 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$ 544.

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$ 420. 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$ 564 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 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 08m

Direct flights

None
The fastest flight from Toronto Region of Waterloo Intl Airport to State of Washington takes 10h 08m
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$ 182Free CancellationRating
7.2
3,214 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.

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
Thu 22/1
Thu 29/1
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$ 146
Flights to Orlandofrom C$ 156
Flights to New Yorkfrom C$ 241
Flights to Las Vegasfrom C$ 127
Flights to Los Angelesfrom C$ 158
Flights to Miamifrom C$ 262
Flights to San Franciscofrom C$ 135
Flights to Honolulufrom C$ 300
Flights to Phoenixfrom C$ 146
Flights to Tampafrom C$ 190
Flights to Chicagofrom C$ 187
Flights to Houstonfrom C$ 211