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Cheap flights from Washington to Toronto Region of Waterloo Intl Airport from C$ 282

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YKF
13 Sep — 20 Sep1
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 14 August 2026.

Wed 16/97:35 p.m. -
1 stop21h 15m
Tue 22/98:40 p.m. -
1 stop25h 05m
Deal found 12/8C$ 537
Thu 17/97:35 p.m. -
1 stop21h 15m
Sun 20/98:40 p.m. -
1 stop16h 00m
Deal found 13/8C$ 551
Wed 16/97:35 p.m. -
1 stop21h 15m
Sun 20/98:40 p.m. -
1 stop16h 00m
Deal found 13/8C$ 555
Sat 26/97:35 p.m. -
1 stop21h 15m
Mon 28/98:40 p.m. -
1 stop25h 05m
Deal found 13/8C$ 563
Tue 25/87:00 a.m. -
1 stop9h 50m
Sat 5/98:40 p.m. -
1 stop25h 05m
Deal found 14/8C$ 581
Tue 15/97:35 p.m. -
1 stop21h 15m
Tue 22/98:40 p.m. -
1 stop16h 00m
Deal found 12/8C$ 584
Wed 30/97:35 p.m. -
1 stop21h 15m
Fri 9/108:40 p.m. -
1 stop16h 00m
Deal found 13/8C$ 587
Sat 26/97:35 p.m. -
1 stop21h 15m
Fri 2/108:40 p.m. -
1 stop16h 00m
Deal found 13/8C$ 602
Sun 27/97:35 p.m. -
1 stop21h 15m
Sun 4/108:40 p.m. -
1 stop16h 00m
Deal found 12/8C$ 605
Thu 8/107:35 p.m. -
1 stop21h 15m
Mon 12/108:40 p.m. -
1 stop25h 05m
Deal found 13/8C$ 608
Fri 18/97:35 p.m. -
1 stop21h 15m
Sun 20/98:40 p.m. -
1 stop16h 00m
Deal found 10/8C$ 636
Fri 25/97:35 p.m. -
1 stop16h 25m
Fri 2/106:05 a.m. -
2 stops15h 27m
Deal found 11/8C$ 637

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 14 August 2026.

Round-trip from

C$ 537

One-way from

C$ 282

Popular in

July

Cheapest in

January

Average price

C$ 761
WestJet
  • WestJet
  • 16/9-22/9
  • 2 total stops
  • 46h 20m total
  • Washington to Toronto
Search Deals
WestJet
  • WestJet
  • 8/10
  • 1 total stop
  • 21h 15m total
  • Washington to Toronto
Search Deals
Highest demand for flights based on searches. 27% potential increase in price (C$ 309 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (C$ 47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
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 14 August 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Wed 16/9

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

1 stop21h 15m

Toronto Region of Waterloo Intl

Tue 22/9

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

1 stop25h 05m

C$ 537

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Tue 22/9

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

1 stop21h 15m

Toronto Region of Waterloo Intl

Tue 29/9

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

1 stop25h 05m

C$ 584

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Fri 18/9

7:35 p.m.-3:00 p.m.

1 stop16h 25m

Toronto Region of Waterloo Intl

Sun 27/9

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

1 stop16h 00m

C$ 638

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Sat 17/10

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

1 stop21h 15m

Toronto Region of Waterloo Intl

Mon 19/10

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

1 stop25h 05m

C$ 662
Quickest round-trip

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Thu 27/8

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

1 stop9h 50m

Toronto Region of Waterloo Intl

Thu 3/9

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

1 stop16h 00m

C$ 693

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Wed 16/9

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

1 stop21h 15m

Toronto Region of Waterloo Intl

Mon 21/9

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

1 stop25h 05m

C$ 707

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Fri 25/9

7:35 p.m.-3:00 p.m.

1 stop16h 25m

Toronto Region of Waterloo Intl

Sun 27/9

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

1 stop16h 00m

C$ 717

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Fri 28/8

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

1 stop21h 15m

Toronto Region of Waterloo Intl

Tue 1/9

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

1 stop16h 00m

C$ 730

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Sun 27/9

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

1 stop21h 15m

Toronto Region of Waterloo Intl

Wed 30/9

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

1 stop16h 00m

C$ 753

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Thu 17/9

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

1 stop21h 15m

Toronto Region of Waterloo Intl

Sun 20/9

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

1 stop16h 00m

C$ 767

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

Showing 1-10 of 22 resultsSorted by cheapest first
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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 21h 15m. 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
Port Elgin
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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Yes, Cheapflights offers price alerts on Washington to Region of Waterloo Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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