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Cheap flights from Washington to Toronto Region of Waterloo Intl Airport from C$ 168

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YKF
17 Jan — 24 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Washington to Region of Waterloo Intl

Enter your travel dates to find the best prices.

Cheapest flights from Washington to Region of Waterloo Intl
Explore the most affordable flight options available from Washington to Region of Waterloo Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 December 2025.

Thu 25/129:25 a.m.SEA - YKF
2 stops17h 03mWestJet
Thu 1/16:20 a.m.YKF - SEA
2 stops13h 25mWestJet
Deal found 17/12C$ 1,507
Thu 25/123:10 p.m.SEA - YKF
1 stop11h 18mMultiple Airlines
Thu 1/16:20 a.m.YKF - SEA
1 stop9h 03mMultiple Airlines
Deal found 17/12C$ 1,832
Mon 22/129:25 a.m.SEA - YKF
2 stops17h 03mWestJet
Fri 26/126:25 a.m.YKF - SEA
2 stops13h 20mWestJet
Deal found 16/12C$ 1,922
Mon 29/123:10 p.m.SEA - YKF
1 stop11h 18mWestJet
Sat 3/17:00 p.m.YKF - SEA
1 stop22h 20mWestJet
Deal found 17/12C$ 1,973
Mon 22/129:25 a.m.SEA - YKF
2 stops17h 03mWestJet
Tue 30/126:20 a.m.YKF - SEA
2 stops13h 25mWestJet
Deal found 17/12C$ 2,225
Sun 28/123:10 p.m.SEA - YKF
1 stop11h 18mWestJet
Sat 3/17:00 p.m.YKF - SEA
1 stop22h 20mWestJet
Deal found 17/12C$ 2,396

Find flight deals from Washington to Region of Waterloo Intl

Keep the following information in mind while searching for Washington to Region of Waterloo Intl flight deals. Data was last updated 18 December 2025.

Round-trip from

C$ 354

One-way from

C$ 168

Popular in

December

Cheapest in

November

Average price

C$ 762
WestJet
  • WestJet
  • 26/4-29/4
  • 2 total stops
  • 17h 48m total
  • Washington to Toronto
Search Deals
WestJet
  • WestJet
  • 15/3
  • 1 total stop
  • 11h 19m total
  • Washington to Toronto
Search Deals
High demand for flights, 6% potential price rise
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Region of Waterloo Intl 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, Cheapflights users made 629,999 searches. Data last updated 18 December 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

Washington

Fly to

Region of Waterloo Intl

Route

Depart

Return

Price

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Sun 26/4

2:05 p.m.-12:45 a.m.

1 stop7h 40m

Toronto Region of Waterloo Intl

Wed 29/4

6:00 a.m.-1:08 p.m.

1 stop10h 08m

C$ 354

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Sun 26/4

2:05 p.m.-12:45 a.m.

1 stop7h 40m

Toronto Region of Waterloo Intl

Tue 28/4

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

1 stop17h 28m

C$ 354

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Sun 5/4

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

1 stop11h 19m

Toronto Region of Waterloo Intl

Sat 11/4

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

1 stop22h 19m

C$ 378

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Mon 27/4

2:05 p.m.-12:45 a.m.

1 stop7h 40m

Toronto Region of Waterloo Intl

Tue 28/4

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

1 stop17h 28m

C$ 382

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Sun 26/4

2:05 p.m.-12:45 a.m.

1 stop7h 40m

Toronto Region of Waterloo Intl

Thu 30/4

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

1 stop17h 28m

C$ 382

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Mon 27/4

2:05 p.m.-12:45 a.m.

1 stop7h 40m

Toronto Region of Waterloo Intl

Wed 29/4

6:00 a.m.-1:08 p.m.

1 stop10h 08m

C$ 382

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Mon 27/4

2:05 p.m.-12:45 a.m.

1 stop7h 40m

Toronto Region of Waterloo Intl

Thu 30/4

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

1 stop17h 28m

C$ 382

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Sun 11/1

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

1 stop11h 18m

Toronto Region of Waterloo Intl

Thu 15/1

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

1 stop11h 00m

C$ 389

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Fri 24/4

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

1 stop11h 19m

Toronto Region of Waterloo Intl

Mon 27/4

6:00 a.m.-1:08 p.m.

1 stop10h 08m

C$ 390

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Mon 25/5

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

1 stop14h 40m

Toronto Region of Waterloo Intl

Sun 31/5

6:00 a.m.-1:08 p.m.

1 stop10h 08m

C$ 390

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/12

Showing 1-10 of 20 results
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Best time to book a flight from Washington to Region of Waterloo Intl

Have a flexible travel schedule? Discover the best time to fly to Region of Waterloo Intl from Washington with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington to Toronto Region of Waterloo Intl Airport
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Washington to Region of Waterloo Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from State of Washington to Toronto Region of Waterloo Intl Airport?

    Departing from State of Washington to Toronto Region of Waterloo Intl Airport will take you 7h 40m. The distance from State of Washington to Toronto Region of Waterloo Intl Airport is about 3257 km.

  • Can I find deals for flights from Washington to Region of Waterloo Intl that include hotel bookings?

    Yes. In addition to deals on Washington to Region of Waterloo Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Region of Waterloo Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Region of Waterloo Intl.

  • Can I find deals for business class flights from Washington to Region of Waterloo Intl?

    Yes. Cheapflights offers flight deals from Washington to Region of Waterloo Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Toronto Region of Waterloo Intl Airport?

Book flights to Toronto Region of Waterloo Intl Airport if you plan to visit one of these locations
Southampton
Sauble Beach

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Alternative routes for Washington to Region of Waterloo Intl

See prices for flight routes from nearby airports that may be better suited for you.
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