Cheap flights from Kitchener-Waterloo to Seattle

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Toronto (YKF)
Seattle (SEA)
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How to find the cheapest flight from
Kitchener-Waterloo (YKF) to Seattle (SEA)

All the information you need to plan the best YKF to SEA flight in 2022: compare Kitchener-Waterloo to Seattle flight prices with the expected peak season, weather and rainfall in Seattle.
When is the cheapest time to fly from Toronto Kitchener-Waterloo Airport to Seattle (YKF - SEA)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Toronto Kitchener-Waterloo Airport to Seattle as you normally would.

What is the cheapest month to fly from Toronto Kitchener-Waterloo Airport to Seattle?

February can be a great time to fly to Seattle from Toronto Kitchener-Waterloo Airport with a flight ticket averaging about C$ 705. Cheapflights users have found deals in the month of February for as cheap as C$ 511. The most expensive prices can be found in the month of July.

How far in advance should I book a flight from Toronto Kitchener-Waterloo Airport to Seattle?

Travellers have found it’s best to book a flight 61 days in advance to save up to 27% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 61 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Toronto Kitchener-Waterloo Airport to Seattle 1-2 weeks in advance for as low as C$ 820, or C$ 964 for flights within the next 24 hours.

Cheap flights from Kitchener-Waterloo to Seattle in September, October 2022

The best prices found for YKF to SEA flights for September, October
28 Oct - 4 Nov
C$ 481pp
YKF
Toronto Kitchener-Waterloo
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
YKF
Toronto Kitchener-Waterloo
21 Oct - 24 Oct
C$ 489pp
YKF
Toronto Kitchener-Waterloo
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
YKF
Toronto Kitchener-Waterloo
18 Oct - 27 Oct
C$ 494pp
YKF
Toronto Kitchener-Waterloo
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
YKF
Toronto Kitchener-Waterloo

Toronto Kitchener-Waterloo to Seattle 2022 flight deals

Cheap flights to Seattle from Kitchener-Waterloo found for this year
14 Nov - 21 Nov
C$ 473pp
YKF
Toronto Kitchener-Waterloo
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
YKF
Toronto Kitchener-Waterloo
28 Oct - 4 Nov
C$ 481pp
YKF
Toronto Kitchener-Waterloo
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
YKF
Toronto Kitchener-Waterloo
25 Nov - 28 Nov
C$ 483pp
YKF
Toronto Kitchener-Waterloo
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
YKF
Toronto Kitchener-Waterloo

Cheap WestJet flights from Kitchener-Waterloo to Seattle

16 Nov - 20 Nov
C$ 1,443pp
YKF
Toronto Kitchener-Waterloo
WestJet
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
WestJet
 
1 STOP
YKF
Toronto Kitchener-Waterloo
2 Dec - 4 Dec
C$ 1,448pp
YKF
Toronto Kitchener-Waterloo
WestJet
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
WestJet
 
1 STOP
YKF
Toronto Kitchener-Waterloo

Last minute flights from Kitchener-Waterloo to Seattle

Late deals on round-trip flights to Seattle from Kitchener-Waterloo, departing today and this week
7 Oct - 10 Oct
C$ 1,113pp
YKF
Toronto Kitchener-Waterloo
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
YKF
Toronto Kitchener-Waterloo
4 Oct - 6 Oct
C$ 1,302pp
YKF
Toronto Kitchener-Waterloo
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
YKF
Toronto Kitchener-Waterloo

One-way flights to Seattle/Tacoma Intl from Toronto Kitchener-Waterloo

The cheapest one-way flights from Kitchener-Waterloo to Seattle
3:00 p.m. - 5:08 a.m.
Multiple Airlines
1 stop
17h 08m
YKF - SEA
Multiple Airlines
C$ 260
mytrip.com
1:00 a.m. - 9:28 a.m.
Multiple Airlines
1 stop
11h 28m
YKF - SEA
Multiple Airlines
C$ 299
mytrip.com
11:00 a.m. - 6:49 a.m.
WestJet
1 stop
22h 49m
YKF - SEA
WestJet
C$ 735

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Kitchener-Waterloo</span> to <span class="emphasized">Seattle</span> flights.

Flight FAQs

From Kitchener-Waterloo to Seattle

What airport do you fly into for flights to Seattle from Toronto Kitchener-Waterloo?

Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Toronto Kitchener-Waterloo to Seattle. You should not have trouble finding flights to Seattle/Tacoma Intl from Toronto Kitchener-Waterloo; the airport handles an average of 0 inbound flights from Toronto Kitchener-Waterloo per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Seattle airport from Toronto Kitchener-Waterloo. It is only a 18.4 km journey from Seattle/Tacoma Intl (SEA) to Seattle’s city centre.

Can I find flights from Toronto Kitchener-Waterloo Airport to Seattle for under C$ 500 on Cheapflights?

Yes, there are multiple flights from Toronto Kitchener-Waterloo Airport to Seattle for under C$ 500. The cheapest flight booked recently is on Multiple Airlines for just C$ 473, but on average you can expect to pay C$ 551.

Are there last-minute flights available from Toronto Kitchener-Waterloo Airport to Seattle for under C$ 1,200?

There are currently 2+ open flights from Toronto Kitchener-Waterloo Airport to Seattle within the next 7 days for less than C$ 1,200.

What are the cheapest flights from Toronto Kitchener-Waterloo Airport to Seattle?

While on average a flight from Toronto Kitchener-Waterloo Airport to Seattle is generally C$ 816, our data shows the cheapest flight currently is C$ 795. When looking at the most popular route, (Toronto Kitchener-Waterloo - Seattle/Tacoma Intl), you can expect to pay C$ 473 for that flight.

COVID Restrictions

View COVID Travel Restrictions for Seattle, WA

Do I need a COVID test to fly to Seattle from Kitchener-Waterloo?

Information is based on travel restrictions from Toronto Kitchener-Waterloo to Seattle/Tacoma Intl

Most visitors from Toronto Kitchener-Waterloo need to provide a negative COVID-19 test result and/or quarantine to enter Seattle/Tacoma Intl.

COVID-19 testing requirements
Visitors from Toronto Kitchener-Waterloo are not required to present a negative COVID-19 PCR test or antigen result upon entering Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Toronto Kitchener-Waterloo are not required to quarantine after entering Seattle/Tacoma Intl.

Do I need a test to fly back to Kitchener-Waterloo from Seattle?

Returning to Toronto Kitchener-Waterloo from Seattle/Tacoma Intl

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Toronto Kitchener-Waterloo.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Toronto Kitchener-Waterloo.

Hide COVID Travel Restrictions for Seattle, WA

Alternative routes for Kitchener-Waterloo to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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