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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 Cheapflights user in the last 72 hours by searching for a flight departing on 14/7. Fares are subject to change and may not be available on all flights or dates of travel.
YKF — SEA
20 Jul — 27 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Region of Waterloo Intl to Washington

Enter your travel dates to find the best prices.

Cheapest flights from Region of Waterloo Intl to Washington
Explore the most affordable flight options available from Region of Waterloo Intl to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 June 2026.

Fri 11/98:40 p.m.
YKF
-
PDX
1 stop20h 10m
WestJet
Sun 13/92:30 p.m.
PDX
-
YKF
1 stop26h 20m
WestJet
Deal found 18/6C$ 423
Fri 4/98:40 p.m.
YKF
-
PDX
1 stop20h 10m
WestJet
Tue 8/92:30 p.m.
PDX
-
YKF
1 stop26h 20m
WestJet
Deal found 17/6C$ 425
Tue 28/78:40 p.m.
YKF
-
PDX
1 stop20h 10m
WestJet
Tue 11/82:30 p.m.
PDX
-
YKF
1 stop26h 20m
WestJet
Deal found 17/6C$ 432
Thu 24/126:20 a.m.
YKF
-
SEA
1 stop10h 00m
WestJet
Sun 3/13:10 p.m.
SEA
-
YKF
1 stop10h 18m
WestJet
Deal found 20/6C$ 470
Thu 24/126:20 a.m.
YKF
-
SEA
1 stop10h 00m
WestJet
Mon 28/123:10 p.m.
SEA
-
YKF
1 stop10h 18m
WestJet
Deal found 18/6C$ 474
Wed 19/88:40 p.m.
YKF
-
PDX
1 stop20h 10m
WestJet
Sat 22/82:30 p.m.
PDX
-
YKF
1 stop26h 20m
WestJet
Deal found 20/6C$ 494
Fri 11/98:40 p.m.
YKF
-
SEA
1 stop16h 00m
WestJet
Mon 21/97:35 p.m.
SEA
-
YKF
1 stop21h 15m
WestJet
Deal found 20/6C$ 512
Fri 4/98:40 p.m.
YKF
-
SEA
1 stop27h 20m
WestJet
Sun 6/97:00 a.m.
SEA
-
YKF
1 stop9h 50m
WestJet
Deal found 19/6C$ 514
Thu 24/98:40 p.m.
YKF
-
SEA
1 stop16h 00m
WestJet
Wed 30/97:35 p.m.
SEA
-
YKF
1 stop21h 15m
WestJet
Deal found 16/6C$ 519
Mon 27/78:40 p.m.
YKF
-
SEA
1 stop27h 20m
WestJet
Sat 5/97:00 a.m.
SEA
-
YKF
1 stop9h 50m
WestJet
Deal found 20/6C$ 522
Sat 29/88:40 p.m.
YKF
-
SEA
1 stop16h 00m
WestJet
Mon 7/97:35 p.m.
SEA
-
YKF
1 stop21h 15m
WestJet
Deal found 20/6C$ 524
Sun 30/88:40 p.m.
YKF
-
SEA
1 stop27h 20m
WestJet
Mon 7/97:00 a.m.
SEA
-
YKF
1 stop9h 50m
WestJet
Deal found 16/6C$ 526

Find flight deals from Region of Waterloo Intl to Washington

Keep the following information in mind while searching for Region of Waterloo Intl to Washington flight deals. Data was last updated 20 June 2026.

Round-trip from

C$ 423

One-way from

C$ 233

Popular in

June

Cheapest in

February

Average price

C$ 709
WestJet
  • WestJet
  • 11/9-13/9
  • 2 total stops
  • 46h 30m total
  • Toronto to Washington
Search Deals
WestJet
  • WestJet
  • 14/7
  • 1 total stop
  • 20h 10m total
  • Toronto to Washington
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (C$ 120 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 27 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 Region of Waterloo Intl to 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, Cheapflights users made 629,999 searches. Data last updated 20 June 2026.
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

Cheapest round-trip

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Fri 25/9

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

1 stop16h 00m

Seattle/Tacoma Intl

Wed 30/9

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

1 stop21h 15m

C$ 528

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Sat 29/8

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

1 stop16h 00m

Seattle/Tacoma Intl

Mon 7/9

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

1 stop21h 15m

C$ 528

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Fri 7/8

8:40 p.m.-9:00 p.m.

1 stop27h 20m

Seattle/Tacoma Intl

Sun 9/8

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

1 stop21h 15m

C$ 535

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Thu 23/7

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

1 stop16h 00m

Seattle/Tacoma Intl

Thu 30/7

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

1 stop21h 15m

C$ 536
Quickest round-trip

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Thu 9/7

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

1 stop16h 00m

Seattle/Tacoma Intl

Mon 13/7

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

1 stop9h 50m

C$ 538

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Fri 17/7

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

1 stop25h 05m

Seattle/Tacoma Intl

Tue 21/7

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

1 stop9h 50m

C$ 538

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Thu 23/7

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

1 stop16h 00m

Seattle/Tacoma Intl

Fri 31/7

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

1 stop9h 50m

C$ 539

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Fri 24/7

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

1 stop16h 00m

Seattle/Tacoma Intl

Mon 27/7

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

1 stop21h 15m

C$ 539

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Tue 28/7

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

1 stop16h 00m

Seattle/Tacoma Intl

Wed 19/8

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

1 stop9h 50m

C$ 541

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Sun 20/9

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

1 stop16h 00m

Seattle/Tacoma Intl

Mon 28/9

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

1 stop21h 15m

C$ 542

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/6

Showing 1-10 of 38 resultsSorted by cheapest first
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Best time to book a flight from Region of Waterloo Intl to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Region of Waterloo Intl 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 Toronto Region of Waterloo Intl Airport to Washington
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 Region of Waterloo Intl to Washington. 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 Toronto Region of Waterloo Intl Airport to State of Washington?

    Airlines like WestJet fly from Toronto Region of Waterloo Intl Airport to State of Washington in about 16h. The time it takes to get you to your destination can typically vary by up to . There are 3257 km between Toronto Region of Waterloo Intl Airport and State of Washington.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Region of Waterloo Intl to Washington 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

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Alternative routes for Region of Waterloo Intl to Washington

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How does Cheapflights help users find flights from Region of Waterloo Intl to Washington?

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

Yes, Cheapflights offers price alerts on Region of Waterloo Intl to Washington 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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