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Cheap flights from Toronto Region of Waterloo Intl Airport to Washington from C$ 156

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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
YKF — SEA
15 Oct — 22 Oct1
1 adult
1 adult, Economy

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 15 September 2025.

Round-trip from

C$ 307

One-way from

C$ 156

Popular in

December

Cheapest in

February

Average price

C$ 547
WestJet
  • WestJet
  • 2/10-5/10
  • 2 total stops
  • 18h 05m total
  • Toronto to Washington
Search Deals
WestJet
  • WestJet
  • 4/10
  • 1 total stop
  • 10h 05m total
  • Toronto to Washington
Search Deals
High demand for flights, 7% potential price rise
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Cheapest flight prices on average. 1% potential price decrease (C$ 10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 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 15 September 2025.

Thu 2/106:00 a.m.YKF - PDX
1 stop10h 05mWestJet
Sun 5/101:45 p.m.PDX - YKF
1 stop8h 00mWestJet
Deal found 13/9C$ 307
Thu 13/116:20 a.m.YKF - SEA
1 stop11h 00mWestJet
Wed 19/113:10 p.m.SEA - YKF
1 stop11h 18mWestJet
Deal found 13/9C$ 315
Thu 13/117:05 a.m.YKF - SEA
1 stop10h 15mMultiple Airlines
Wed 19/113:10 p.m.SEA - YKF
1 stop11h 18mMultiple Airlines
Deal found 13/9C$ 398
Sun 12/106:15 a.m.YKF - SEA
1 stop9h 20mMultiple Airlines
Sun 19/108:40 a.m.SEA - YKF
1 stop17h 35mMultiple Airlines
Deal found 14/9C$ 403
Sun 12/106:15 a.m.YKF - SEA
1 stop9h 20mMultiple Airlines
Sat 18/108:40 a.m.SEA - YKF
2 stops17h 50mMultiple Airlines
Deal found 14/9C$ 425
Mon 20/106:00 a.m.YKF - SEA
1 stop9h 59mWestJet
Mon 27/103:10 p.m.SEA - YKF
1 stop11h 18mWestJet
Deal found 13/9C$ 427
Mon 3/116:20 a.m.YKF - SEA
1 stop11h 00mWestJet
Fri 7/1111:55 a.m.SEA - YKF
2 stops14h 33mWestJet
Deal found 14/9C$ 431
Sat 25/106:00 a.m.YKF - SEA
1 stop9h 59mWestJet
Sun 2/1111:55 a.m.SEA - YKF
2 stops14h 33mWestJet
Deal found 14/9C$ 442
Fri 3/106:00 a.m.YKF - PDX
1 stop10h 05mWestJet
Sun 5/101:45 p.m.PDX - YKF
1 stop8h 00mWestJet
Deal found 13/9C$ 551
Mon 29/96:00 a.m.YKF - PDX
2 stops32h 11mMultiple Airlines
Sat 4/101:45 p.m.PDX - YKF
2 stops12h 45mMultiple Airlines
Deal found 13/9C$ 606
Fri 3/106:00 a.m.YKF - PDX
1 stop10h 05mMultiple Airlines
Sun 5/101:45 p.m.PDX - YKF
1 stop8h 00mMultiple Airlines
Deal found 13/9C$ 727
Thu 23/106:00 a.m.YKF - PDX
2 stops19h 40mWestJet
Sun 26/1012:40 a.m.PDX - YKF
2 stops25h 48mWestJet
Deal found 13/9C$ 819

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 15 September 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 13/11

6:20 a.m.-2:20 p.m.

1 stop11h 00m

Seattle/Tacoma Intl

Wed 19/11

3:10 p.m.-5:28 a.m.

1 stop11h 18m

C$ 315

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Thu 13/11

7:05 a.m.-2:20 p.m.

1 stop10h 15m

Seattle/Tacoma Intl

Wed 19/11

3:10 p.m.-5:28 a.m.

1 stop11h 18m

C$ 398

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Sun 12/10

6:15 a.m.-12:35 p.m.

1 stop9h 20m

Seattle/Tacoma Intl

Sun 19/10

8:40 a.m.-5:15 a.m.

1 stop17h 35m

C$ 403

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Sun 12/10

6:15 a.m.-12:35 p.m.

1 stop9h 20m

Seattle/Tacoma Intl

Sat 18/10

8:40 a.m.-5:30 a.m.

2 stops17h 50m

C$ 425

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Mon 20/10

6:00 a.m.-12:59 p.m.

1 stop9h 59m

Seattle/Tacoma Intl

Mon 27/10

3:10 p.m.-5:28 a.m.

1 stop11h 18m

C$ 427

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Sat 25/10

6:00 a.m.-12:59 p.m.

1 stop9h 59m

Seattle/Tacoma Intl

Sun 2/11

11:55 a.m.-5:28 a.m.

2 stops14h 33m

C$ 442

TorontoSeattle

YKF - SEA

YKFSEA

Toronto Region of Waterloo Intl

Mon 6/10

6:00 a.m.-8:29 p.m.

1 stop17h 29m

Seattle/Tacoma Intl

Thu 16/10

1:50 p.m.-12:45 a.m.

1 stop7h 55m

C$ 459

TorontoPortland

YKF - PDX

YKFPDX

Toronto Region of Waterloo Intl

Fri 3/10

6:00 a.m.-1:05 p.m.

1 stop10h 05m

Portland

Sun 5/10

1:45 p.m.-12:45 a.m.

1 stop8h 00m

C$ 551

TorontoPortland

YKF - PDX

YKFPDX

Toronto Region of Waterloo Intl

Mon 29/9

6:00 a.m.-11:11 a.m.

2 stops32h 11m

Portland

Sat 4/10

1:45 p.m.-5:30 a.m.

2 stops12h 45m

C$ 606

TorontoPortland

YKF - PDX

YKFPDX

Toronto Region of Waterloo Intl

Fri 3/10

6:00 a.m.-1:05 p.m.

1 stop10h 05m

Portland

Sun 5/10

1:45 p.m.-12:45 a.m.

1 stop8h 00m

C$ 727

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/9

Showing 1-10 of 30 results
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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

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 15 September 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Toronto Region of Waterloo Intl Airport to State of Washington as you normally would.

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 15 September 2025.
See what other customers who have flown with WestJet and Air Canada from Toronto Region of Waterloo Intl Airport to Washington have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
WestJet
7.2
Good
3,091 reviews
Check prices

Comfort

7.1

Entertainment

6.1

Food

6.2

Overall

7.2

Crew

7.9

Boarding

7.4

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
3,091 reviews
WestJet
7.2
Good
3,091 reviews
Check prices

Comfort

7.1

Entertainment

6.1

Food

6.2

Overall

7.2

Crew

7.9

Boarding

7.4

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
7.1
Good
10,000 reviews
WestJet
7.2
Good
3,091 reviews
Check prices

Comfort

7.1

Entertainment

6.1

Food

6.2

Overall

7.2

Crew

7.9

Boarding

7.4

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.

  • 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 11h. 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.

  • 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 C$ 262). Flying from Toronto Region of Waterloo Intl Airport to State of Washington in December is currently the most expensive (average of C$ 353). 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.

See more FAQs

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Top 2 airlines flying from Region of Waterloo Intl to Washington

Discover the top 2 airlines 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 629,999 searches. Data last updated 15 September 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 183AverageC$ 306FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 377AverageC$ 391FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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

Cheapflights makes it easy to find Region of Waterloo Intl to Washington flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Region of Waterloo Intl to Washington?

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

Yes, we can. To see specific flights from Region of Waterloo Intl to Washington 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 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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