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$85+ 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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
YKF — SEA
May 5 — May 121
Mon 5/5
Mon 5/12
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 April 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$234
(Trip.com)

One-way from

$85
(Justfly.com)

Popular in

July

Cheapest in

February

Average price

$396
Provider with most accurate pricing for Toronto (YTO)-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Toronto (YTO)-Seattle/Tacoma Intl flights.
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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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Highest demand for flights based on searches. 10% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 30, 2025.

This Trip.com deal was found by Cheapflights users on 4/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/246:00 amYKF - SEA
1 stop17h 28mWestJet
Sat 7/261:50 pmSEA - YKF
1 stop7h 56mWestJet
Deal found 4/28$234
This Mytrip deal was found by Cheapflights users on 4/28. 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.
Mon 5/196:00 amYKF - PDX
2 stops33h 42mMultiple Airlines
Sun 5/251:45 pmPDX - YKF
1 stop8h 01mMultiple Airlines
Deal found 4/28$283
This Mytrip deal was found by Cheapflights users on 4/28. 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 5/256:00 amYKF - SEA
1 stop9h 58mMultiple Airlines
Wed 6/46:00 amSEA - YKF
2 stops15h 46mMultiple Airlines
Deal found 4/28$286
This FlightHub deal was found by Cheapflights users on 4/28. 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.
Mon 5/196:00 amYKF - PDX
1 stop9h 52mWestJet
Sun 6/11:45 pmPDX - YKF
1 stop8h 01mWestJet
Deal found 4/28$363

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 April 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

Thu 7/24

6:00 am-8:28 pm

1 stop17h 28m

Seattle/Tacoma Intl

Sat 7/26

1:50 pm-12:46 am

1 stop7h 56m

$234

TorontoPortland

YKF - PDX

YKFPDX

Toronto Region of Waterloo Intl

Mon 5/19

6:00 am-12:42 pm

2 stops33h 42m

Portland

Sun 5/25

1:45 pm-12:46 am

1 stop8h 01m

$283

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Sun 5/25

6:00 am-12:58 pm

1 stop9h 58m

Seattle/Tacoma Intl

Wed 6/4

6:00 am-12:46 am

2 stops15h 46m

$286

TorontoPortland

YKF - PDX

YKFPDX

Toronto Region of Waterloo Intl

Mon 5/19

6:00 am-12:52 pm

1 stop9h 52m

Portland

Sun 6/1

1:45 pm-12:46 am

1 stop8h 01m

$363

TorontoPortland

YKF - PDX

YKFPDX

Toronto Region of Waterloo Intl

Wed 7/2

6:00 am-12:52 pm

1 stop9h 52m

$85

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Mon 9/29

6:00 am-12:59 pm

1 stop9h 59m

$176

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Wed 6/11

6:00 am-6:32 pm

2 stops15h 32m

$190

TorontoPortland

YKF - PDX

YKFPDX

Toronto Region of Waterloo Intl

Tue 6/24

7:45 pm-5:44 pm

3 stops24h 59m

$208

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Mon 5/26

5:35 am-10:45 am

1 stop8h 10m

$281

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

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 April 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.

Rainfall in Washington by month

Plan your trip to Washington by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

Plan your trip to Washington by taking into account the average temperature totals by month.

If weather is an important factor for your trip to State of Washington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 April 30, 2025.
WestJet
7.2
Good
2,823 reviews

Overall

7.2

Crew

7.9

Food

6.2

Boarding

7.4

Comfort

7.1

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
2,823 reviews
WestJet
7.2
Good
2,823 reviews

Overall

7.2

Crew

7.9

Food

6.2

Boarding

7.4

Comfort

7.1

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
Air Canada
7.0
Good
9,242 reviews
WestJet
7.2
Good
2,823 reviews

Overall

7.2

Crew

7.9

Food

6.2

Boarding

7.4

Comfort

7.1

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 July is currently the most expensive (average of $405). 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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Top airline flying from Region of Waterloo Intl to Washington

Discover the top airline that operate flights from Region of Waterloo Intl to Washington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$141Average$288FlexibilityNo cancel feeOn-time60%

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