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Cheap flights from Washington to Toronto Region of Waterloo Intl Airport from C$ 305

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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YKF
23 Jul — 30 Jul1
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 23 June 2026.

Mon 9/113:10 p.m.
SEA
-
YKF
1 stop10h 18m
WestJet
Mon 23/116:20 a.m.
YKF
-
SEA
1 stop10h 00m
WestJet
Deal found 18/6C$ 571
Fri 6/113:10 p.m.
SEA
-
YKF
1 stop10h 18m
WestJet
Tue 10/116:20 a.m.
YKF
-
SEA
1 stop10h 00m
WestJet
Deal found 18/6C$ 581
Sat 29/87:00 a.m.
SEA
-
YKF
1 stop9h 50m
WestJet
Sat 12/98:40 p.m.
YKF
-
SEA
1 stop16h 00m
WestJet
Deal found 21/6C$ 606
Fri 14/87:00 a.m.
SEA
-
YKF
1 stop9h 50m
WestJet
Sun 23/88:40 p.m.
YKF
-
SEA
1 stop16h 00m
WestJet
Deal found 20/6C$ 614
Thu 27/87:00 a.m.
SEA
-
YKF
1 stop9h 50m
WestJet
Tue 1/98:40 p.m.
YKF
-
SEA
1 stop16h 00m
WestJet
Deal found 20/6C$ 615
Fri 21/87:00 a.m.
SEA
-
YKF
1 stop9h 50m
WestJet
Sun 30/88:40 p.m.
YKF
-
SEA
1 stop16h 00m
WestJet
Deal found 19/6C$ 616
Wed 19/87:00 a.m.
SEA
-
YKF
1 stop9h 50m
WestJet
Sat 29/88:40 p.m.
YKF
-
SEA
1 stop16h 00m
WestJet
Deal found 21/6C$ 618
Thu 23/77:00 a.m.
SEA
-
YKF
1 stop9h 50m
WestJet
Sun 26/78:40 p.m.
YKF
-
SEA
1 stop16h 00m
WestJet
Deal found 21/6C$ 619
Sat 11/77:00 a.m.
SEA
-
YKF
1 stop9h 50m
WestJet
Tue 21/78:40 p.m.
YKF
-
SEA
1 stop16h 00m
WestJet
Deal found 19/6C$ 621
Fri 31/77:00 a.m.
SEA
-
YKF
1 stop9h 50m
WestJet
Mon 3/88:40 p.m.
YKF
-
SEA
1 stop16h 00m
WestJet
Deal found 19/6C$ 622
Wed 12/87:00 a.m.
SEA
-
YKF
1 stop9h 50m
WestJet
Mon 17/88:40 p.m.
YKF
-
SEA
1 stop16h 00m
WestJet
Deal found 18/6C$ 623
Sun 23/87:00 a.m.
SEA
-
YKF
1 stop9h 50m
WestJet
Tue 25/88:40 p.m.
YKF
-
SEA
1 stop16h 00m
WestJet
Deal found 20/6C$ 625

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 23 June 2026.

Round-trip from

C$ 606

One-way from

C$ 305

Popular in

July

Cheapest in

January

Average price

C$ 716
WestJet
  • WestJet
  • 29/8-12/9
  • 2 total stops
  • 25h 50m total
  • Washington to Toronto
Search Deals
WestJet
  • WestJet
  • 6/9
  • 1 total stop
  • 9h 50m total
  • Washington to Toronto
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (C$ 264 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 23 June 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
Quickest round-trip

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Fri 21/8

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

1 stop9h 50m

Toronto Region of Waterloo Intl

Mon 24/8

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

1 stop16h 00m

C$ 618

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Sun 23/8

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

1 stop9h 50m

Toronto Region of Waterloo Intl

Sun 30/8

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

1 stop16h 00m

C$ 618

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Sun 23/8

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

1 stop9h 50m

Toronto Region of Waterloo Intl

Tue 25/8

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

1 stop16h 00m

C$ 629

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Mon 24/8

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

1 stop9h 50m

Toronto Region of Waterloo Intl

Sat 29/8

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

1 stop16h 00m

C$ 646

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Wed 22/7

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

1 stop9h 50m

Toronto Region of Waterloo Intl

Fri 24/7

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

1 stop16h 00m

C$ 646

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Sun 23/8

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

1 stop9h 50m

Toronto Region of Waterloo Intl

Mon 31/8

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

1 stop16h 00m

C$ 646

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Thu 6/8

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

1 stop9h 50m

Toronto Region of Waterloo Intl

Mon 10/8

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

1 stop16h 00m

C$ 649

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Fri 4/9

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

1 stop9h 50m

Toronto Region of Waterloo Intl

Sun 6/9

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

1 stop16h 00m

C$ 653

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Fri 4/9

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

1 stop9h 50m

Toronto Region of Waterloo Intl

Mon 7/9

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

1 stop16h 00m

C$ 653

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Sat 10/10

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

1 stop21h 15m

Toronto Region of Waterloo Intl

Mon 12/10

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

1 stop25h 05m

C$ 656

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/6

Showing 1-10 of 21 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 9h 50m. 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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How does Cheapflights help users find flights from Washington to Region of Waterloo Intl?

When you search for this flight from Washington to Region of Waterloo Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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Can Cheapflights find flights from Washington to Region of Waterloo Intl with no change fees?

Yes, we can. To see specific flights from Washington to Region of Waterloo Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Washington to Region of Waterloo Intl become cheaper?

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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