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$159+ Cheap flights from Region of Waterloo Intl (YKF) to Washington

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
YKF — SEA
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap 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 July 30, 2025.

Round-trip from

$265
(FlightHub)

One-way from

$159
(Trip.com)

Popular in

December

Cheapest in

February

Average price

$402
From Toronto Region of Waterloo Intl to Washington
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One-way flight from Toronto Region of Waterloo Intl to Washington
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High demand for flights, 4% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Region of Waterloo Intl to Washington

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 July 30, 2025.

This FlightHub deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/226:00 amYKF - SEA
1 stop9h 58mWestJet
Thu 8/281:50 pmSEA - YKF
1 stop7h 56mWestJet
Deal found 7/29$265
This Mytrip deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/216:15 amYKF - SEA
1 stop9h 18mMultiple Airlines
Tue 9/305:30 amSEA - YKF
3 stops21h 00mMultiple Airlines
Deal found 7/30$304
This oojo deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/196:00 amYKF - PDX
1 stop10h 04mWestJet
Tue 8/261:45 pmPDX - YKF
1 stop8h 01mWestJet
Deal found 7/29$427
This Mytrip deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:00 amYKF - PDX
1 stop10h 05mMultiple Airlines
Mon 9/221:45 pmPDX - YKF
1 stop12h 30mMultiple Airlines
Deal found 7/30$465

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 2,558,603 searches. Data last updated July 30, 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

Region of Waterloo Intl

Fly to

Washington

Route

Depart

Return

Price

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Fri 8/22

6:00 am-12:58 pm

1 stop9h 58m

Seattle/Tacoma Intl

Thu 8/28

1:50 pm-12:46 am

1 stop7h 56m

$265

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Sun 9/21

6:15 am-6:36 pm

2 stops15h 21m

Seattle/Tacoma Intl

Tue 9/30

5:30 am-5:30 am

3 stops21h 00m

$304

TorontoPortland

YKF - PDX

YKFPDX

Toronto Region of Waterloo Intl

Tue 8/19

6:00 am-1:04 pm

1 stop10h 04m

Portland

Tue 8/26

1:45 pm-12:46 am

1 stop8h 01m

$427

TorontoPortland

YKF - PDX

YKFPDX

Toronto Region of Waterloo Intl

Fri 9/19

6:00 am-1:05 pm

1 stop10h 05m

Portland

Mon 9/22

1:45 pm-5:15 am

1 stop12h 30m

$465

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Sun 10/5

6:15 am-12:33 pm

1 stop9h 18m

$159

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Sat 8/30

6:00 am-4:16 pm

1 stop13h 16m

$165

TorontoPortland

YKF - PDX

YKFPDX

Toronto Region of Waterloo Intl

Mon 9/22

6:00 am-11:12 am

2 stops32h 12m

$232

TorontoPortland

YKF - PDX

YKFPDX

Toronto Region of Waterloo Intl

Thu 9/25

6:00 am-1:05 pm

1 stop10h 05m

$297

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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

What is the cheapest time of day to fly from YKF to WA?

Find hourly flight availability from Region of Waterloo Intl to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

When flying from Toronto Region of Waterloo Intl Airport to State of Washington, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington. Reviews last updated July 30, 2025.
Get a feel of what it's like to fly with WestJet from Toronto Region of Waterloo Intl Airport to Washington by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
WestJet
7.2
Good
2,975 reviews

Boarding

7.4

Crew

7.9

Food

6.2

Overall

7.2

Comfort

7.0

Entertainment

6.1

Reviews

1 / 20
6.0
Good

Deb,Jan 2025

YYZ - YYC

Boarding went smoothly, you didn't accept debit card for food on flight
WestJet
7.2
Good
2,975 reviews
WestJet
7.2
Good
2,975 reviews

Boarding

7.4

Crew

7.9

Food

6.2

Overall

7.2

Comfort

7.0

Entertainment

6.1

Reviews

1 / 20
6.0
Good

Deb,Jan 2025

YYZ - YYC

Boarding went smoothly, you didn't accept debit card for food on flight

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.

  • 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.

  • What is the cheapest month to book a flight from Toronto Region of Waterloo Intl Airport to State of Washington?

    Currently, January is the cheapest month in which you can book a flight from Toronto Region of Waterloo Intl Airport to State of Washington (average of $238). Flying from Toronto Region of Waterloo Intl Airport to State of Washington in June is currently the most expensive (average of $389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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