HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Seattle (SEA) to Kitchener-Waterloo (YKF) from $171

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 10/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SEA — YKF
Jun 15 — Jun 221
From?
To?
Sat 6/15
Sat 6/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Cheap flight deals from Seattle to Kitchener-Waterloo

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Kitchener-Waterloo (YKF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 10, 2024.

Round-trip from

$248

One-way from

$201
From Seattle/Tacoma Intl to Toronto Kitchener-Waterloo
Search Deals
One-way flight from Seattle/Tacoma Intl to Toronto Kitchener-Waterloo
Search Deals

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

To save on the cost of your flight from Seattle to Toronto Kitchener-Waterloo Airport, book at least 27 days before your planned departure. Booking around this time can save you about 88% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $713 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $752.

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

November can be a great time to fly to Toronto Kitchener-Waterloo Airport from Seattle with a flight ticket averaging about $599. Cheapflights users have found deals in the month of November for as cheap as $214. The most expensive prices can be found in the month of December.

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

One of the essential ways to save on airfare from Seattle to Toronto Kitchener-Waterloo Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 28% on airfare.

Cheap Seattle to Kitchener-Waterloo flights in June & July 2024

Find cheap flight options from Seattle to Kitchener-Waterloo specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,020,828 searches. Prices were last updated on June 10, 2024.
Thu 7/187:00 amSEA - YKF
1 stop7h 23mWestJet
Thu 8/16:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 6/9$415
Thu 7/187:00 amSEA - YKF
1 stop7h 23mWestJet
Thu 8/16:20 pmYKF - SEA
2 stops23h 26mWestJet
Deal found 6/9$464
Tue 7/161:50 pmSEA - YKF
1 stop8h 02mWestJet
Thu 7/256:15 amYKF - SEA
1 stop17h 07mWestJet
Deal found 6/9$467
Thu 7/117:00 amSEA - YKF
1 stop14h 52mWestJet
Tue 7/166:15 amYKF - SEA
1 stop14h 07mWestJet
Deal found 6/8$482
Tue 7/237:00 amSEA - YKF
1 stop14h 52mWestJet
Tue 7/306:15 amYKF - SEA
1 stop9h 44mWestJet
Deal found 6/9$487
Wed 7/247:00 amSEA - YKF
1 stop14h 52mWestJet
Mon 7/296:15 amYKF - SEA
1 stop9h 44mWestJet
Deal found 6/9$492
Thu 7/257:00 amSEA - YKF
1 stop7h 23mWestJet
Mon 7/296:15 amYKF - SEA
1 stop9h 44mWestJet
Deal found 6/9$505
Thu 7/117:00 amSEA - YKF
1 stop14h 52mWestJet
Wed 7/176:15 amYKF - SEA
1 stop17h 07mWestJet
Deal found 6/9$512
Sat 7/277:00 amSEA - YKF
1 stop14h 52mWestJet
Sun 8/46:15 amYKF - SEA
2 stops35h 31mWestJet
Deal found 6/9$518

Seattle to Kitchener-Waterloo 2024 flight deals

Discover exclusive flight deals for travel between Seattle and Kitchener-Waterloo in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 10, 2024.
Thu 7/187:00 amSEA - YKF
1 stop7h 23mWestJet
Thu 8/16:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 6/9$415
Wed 8/71:50 pmSEA - YKF
1 stop8h 02mWestJet
Mon 8/196:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 6/9$434
Tue 8/137:00 amSEA - YKF
1 stop7h 23mWestJet
Sun 8/186:15 amYKF - SEA
1 stop14h 06mWestJet
Deal found 6/9$442
Fri 8/166:15 pmSEA - YKF
1 stop27h 37mWestJet
Sat 8/316:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 6/9$461
Thu 7/187:00 amSEA - YKF
1 stop7h 23mWestJet
Thu 8/16:20 pmYKF - SEA
2 stops23h 26mWestJet
Deal found 6/9$464
Tue 7/161:50 pmSEA - YKF
1 stop8h 02mWestJet
Thu 7/256:15 amYKF - SEA
1 stop17h 07mWestJet
Deal found 6/9$467
Wed 9/187:00 amSEA - YKF
1 stop7h 28mWestJet
Thu 9/266:15 amYKF - SEA
2 stops11h 33mWestJet
Deal found 6/9$472
Sun 8/117:00 amSEA - YKF
1 stop14h 52mWestJet
Sat 8/316:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 6/9$473
Thu 7/117:00 amSEA - YKF
1 stop14h 52mWestJet
Tue 7/166:15 amYKF - SEA
1 stop14h 07mWestJet
Deal found 6/8$482

Seattle to Kitchener-Waterloo flights leaving soon

Find last-minute flight options from Seattle to Kitchener-Waterloo for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 10, 2024.
Tue 6/187:00 amSEA - YKF
1 stop14h 52mWestJet
Sun 6/236:15 amYKF - SEA
2 stops35h 31mWestJet
Deal found 6/9$546
Sat 6/151:50 pmSEA - YKF
1 stop8h 02mMultiple Airlines
Sat 6/226:15 amYKF - SEA
3 stops29h 17mMultiple Airlines
Deal found 6/9$687
Fri 6/147:00 amSEA - YKF
1 stop15h 10mWestJet
Sun 9/226:20 pmYKF - SEA
1 stop21h 36mWestJet
Deal found 6/9$790
Sat 6/151:50 pmSEA - YKF
1 stop8h 02mMultiple Airlines
Sat 6/226:15 amYKF - SEA
1 stop9h 12mMultiple Airlines
Deal found 6/9$855
Sat 6/151:50 pmSEA - YKF
1 stop8h 02mWestJet
Sat 6/226:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 6/9$858
Sat 6/151:50 pmSEA - YKF
1 stop8h 02mMultiple Airlines
Sat 6/226:15 amYKF - SEA
2 stops15h 28mMultiple Airlines
Deal found 6/9$887
Mon 6/171:50 pmSEA - YKF
1 stop8h 02mWestJet
Wed 6/196:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 6/9$894
Sun 6/167:00 amSEA - YKF
1 stop14h 52mWestJet
Sun 6/236:15 amYKF - SEA
2 stops11h 31mWestJet
Deal found 6/9$907
Fri 6/141:50 pmSEA - YKF
1 stop8h 20mWestJet
Mon 6/176:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 6/9$931

One-way flights to Kitchener-Waterloo from Seattle

Search for one-way flight options from Seattle to Kitchener-Waterloo. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 10, 2024.
Mon 10/147:05 pmSEA - YKF
2 stops21h 50mMultiple Airlines
Deal found 6/9$171
Thu 7/257:00 amSEA - YKF
1 stop7h 23mWestJet
Deal found 6/9$201
Mon 10/147:00 amSEA - YKF
1 stop7h 28mWestJet
Deal found 6/9$209
Mon 7/297:00 amSEA - YKF
1 stop14h 52mWestJet
Deal found 6/9$216
Sun 10/207:00 amSEA - YKF
1 stop7h 28mWestJet
Deal found 6/9$220
Mon 10/77:00 amSEA - YKF
1 stop7h 28mWestJet
Deal found 6/9$221
Wed 7/106:15 pmSEA - YKF
1 stop27h 37mWestJet
Deal found 6/10$229
Thu 9/57:00 amSEA - YKF
1 stop7h 23mWestJet
Deal found 6/9$235
Wed 7/247:00 amSEA - YKF
1 stop14h 52mWestJet
Deal found 6/9$241

Find flights from Seattle to Kitchener-Waterloo within your budget

Customize your flight search to find flights from Seattle to Kitchener-Waterloo 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 3,020,828 searches. Data last updated June 10, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$415 - $700

Route

Depart

Return

Price

Seattle/Tacoma IntlToronto Kitchener-Waterloo

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Thu 7/18

1 stop7h 23m

Toronto Kitchener-Waterloo

Thu 8/1

1 stop9h 41m

$415

Seattle/Tacoma IntlToronto Kitchener-Waterloo

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Wed 8/7

1 stop8h 02m

Toronto Kitchener-Waterloo

Mon 8/19

1 stop9h 41m

$434

Seattle/Tacoma IntlToronto Kitchener-Waterloo

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Tue 8/13

1 stop7h 23m

Toronto Kitchener-Waterloo

Sun 8/18

1 stop14h 06m

$442

Seattle/Tacoma IntlToronto Kitchener-Waterloo

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Tue 9/10

1 stop8h 02m

Toronto Kitchener-Waterloo

Fri 9/13

1 stop9h 41m

$443

Seattle/Tacoma IntlToronto Kitchener-Waterloo

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Tue 7/9

3 stops24h 11m

Toronto Kitchener-Waterloo

Wed 7/24

1 stop9h 44m

$458

Seattle/Tacoma IntlToronto Kitchener-Waterloo

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Fri 8/16

1 stop27h 37m

Toronto Kitchener-Waterloo

Sat 8/31

1 stop9h 41m

$461

Seattle/Tacoma IntlToronto Kitchener-Waterloo

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Thu 7/18

1 stop7h 23m

Toronto Kitchener-Waterloo

Thu 8/1

2 stops23h 26m

$464

Seattle/Tacoma IntlToronto Kitchener-Waterloo

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Tue 7/16

1 stop8h 02m

Toronto Kitchener-Waterloo

Thu 7/25

1 stop17h 07m

$467

Seattle/Tacoma IntlToronto Kitchener-Waterloo

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Mon 7/15

1 stop7h 23m

Toronto Kitchener-Waterloo

Thu 7/18

2 stops14h 28m

$700

Flights are sorted by cheapest first

Deals found on 6/9

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

Use this chart to determine the cheapest time to fly round-trip from Seattle to Kitchener-Waterloo. Price data was last updated on June 9, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Seattle to Toronto Kitchener-Waterloo Airport flight should consider departing on Thursday at noon when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Seattle to Kitchener-Waterloo

Have a flexible travel schedule? Discover the best time to fly to Kitchener-Waterloo from Seattle 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.

Temperature and rainfall in Kitchener-Waterloo by month

Plan your trip to Kitchener-Waterloo by taking into account the average temperature and rainfall totals by month.

YTO

Temperature

21.2 - 69.8 °F

If weather is an important factor for your trip to Toronto Kitchener-Waterloo Airport, 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Kitchener-Waterloo

Get insights into the airlines that provide service to Kitchener-Waterloo. 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 Kitchener-Waterloo. Reviews last updated June 10, 2024.
WestJet
7.5
Good
2,847 reviews

Boarding

7.6

Food

6.4

Crew

8.1

Entertainment

6.4

Comfort

7.3

Overall

7.5

Reviews

1 / 10

Pilots made up time on delayed flights. Air in the cabin was stuffy and too warm. Flight attendants were friendly and efficient.

WestJet
7.5
Good
2,847 reviews
WestJet
7.5
Good
2,847 reviews

Boarding

7.6

Food

6.4

Crew

8.1

Entertainment

6.4

Comfort

7.3

Overall

7.5

Reviews

1 / 10

Pilots made up time on delayed flights. Air in the cabin was stuffy and too warm. Flight attendants were friendly and efficient.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Kitchener-Waterloo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Toronto Kitchener-Waterloo. 1 airline have flights from Seattle/Tacoma Intl to Toronto Kitchener-Waterloo on a regular basis. Booking flights from Seattle/Tacoma Intl to Toronto Kitchener-Waterloo should not be difficult; the airport handles an average of 0 outbound flights to Toronto Kitchener-Waterloo per day.

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

    Yes, there are multiple flights from Seattle to Toronto Kitchener-Waterloo Airport for under $500. The cheapest flight booked recently is on WestJet for just $415, but on average you can expect to pay $476.

  • Are there last-minute flights available from Seattle to Toronto Kitchener-Waterloo Airport for under $600?

    There are currently 16+ open flights from Seattle to Toronto Kitchener-Waterloo Airport within the next 7 days for less than $600.

  • What is the cheapest airline to fly from Seattle to Toronto Kitchener-Waterloo Airport round-trip?

    Our cheapest airline available from Seattle to Toronto Kitchener-Waterloo Airport is WestJet. Our recent data shows that you can find tickets from as low as $415 on this airline.

  • What does SEA to YKF mean?

    This is defined as Seattle/Tacoma Intl Airport (SEA) and Toronto Kitchener-Waterloo Airport (YKF). Codes like Toronto Kitchener-Waterloo Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Seattle to Kitchener-Waterloo that include extra baggage allowance?

    The amount of baggage you can bring on your Seattle to Kitchener-Waterloo flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Seattle to Kitchener-Waterloo with specific airlines?

    Yes, Cheapflights allows you to browse and filter Seattle to Kitchener-Waterloo flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Seattle to Kitchener-Waterloo that include hotel bookings?

    Yes. In addition to deals on Seattle to Kitchener-Waterloo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Kitchener-Waterloo?

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

  • Can I find deals for business class flights from Seattle to Kitchener-Waterloo?

    Yes. Cheapflights offers flight deals from Seattle to Kitchener-Waterloo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Seattle to Kitchener-Waterloo that allow pets onboard?

    Many airlines flying from Seattle to Kitchener-Waterloo offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Seattle to Kitchener-Waterloo?

    Yes, you can often find last-minute deals on Seattle to Kitchener-Waterloo flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Seattle to Toronto Kitchener-Waterloo Airport flight deals updated?

    The Seattle to Toronto Kitchener-Waterloo Airport flight deals you see on this page were last updated on 6/9.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Kitchener-Waterloo
See prices for flight routes from nearby airports that may be better suited for you.

Seattle to Pearson Intl flights
Portland to Pearson Intl flights
Seattle to Hamilton flights
Seattle to Toronto Island flights
Spokane to Pearson Intl flights
Portland to Toronto Island flights
Pasco to Pearson Intl flights
Bellingham to Pearson Intl flights
Spokane to Hamilton flights

Top airline flying from Seattle to Kitchener-Waterloo

Discover the top airline that operate flights from Seattle to Kitchener-Waterloo. 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 3,020,828 searches. Data last updated June 10, 2024.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$463Average$570FlexibilityNo cancel feeOn-time60%
Houston to Mexico City flights
Atlanta to Chicago flights
Boston to Toronto flights
Miami to Madrid flights
Los Angeles to El Salvador flights
Newark Airport to Nashville flights
New York John F Kennedy Intl Airport to Paris flights
USA to Singapore flights
Orlando to Washington, D.C. flights
Phoenix to Austin flights
Seattle to New York flights
Seattle to Yakima flights

Search flights from Seattle to Kitchener-Waterloo by cabin class

Find flights from Seattle to Kitchener-Waterloo, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Gaziantep
Flights to Miyakojima Hirara
Flights to Figari-Sud Corse
Flights to Mason City
Flights to Komatsu
Flights to Sendai
Flights to Rhinelander Oneida County
Flights to Constanţa Mihail Kogalniceanu
Flights to Brainerd Crow Wing County
Flights to Reus
Flights to Virac
Flights to Neiva La Marguita
Flights to Pellston Emmet County
Flights to Urumqi
Flights to Bastia Poretta
Flights to Samos
Flights to Hyannis Barnstable
Flights to Provincetown
Flights to Alghero-Fertilia
Flights to Laayoune Hassan I
Flights to Devils Lake
Flights to Vava'u Lupepau'U
Flights to Hakodate
Flights to Edremit/Korfez
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines