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Cheap flights from Seattle (SEA) to Kitchener-Waterloo (YKF) from $139

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 8/12. 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
May 27 — Jun 31
From?
To?
Mon 5/27
Mon 6/3
1 adult, Economy
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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?

January can be a great time to fly to Toronto Kitchener-Waterloo Airport from Seattle with a flight ticket averaging about $602. Cheapflights users have found deals in the month of January for as cheap as $198. The most expensive prices can be found in the month of December.

When is the cheapest time to fly from Seattle to Toronto Kitchener-Waterloo Airport (SEA - YKF)?

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

Cheap WestJet flights from Seattle to Kitchener-Waterloo

Explore cheap flight options specifically provided by WestJet for the route between Seattle and Kitchener-Waterloo. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,730,072 searches. Data last updated May 22, 2024.
Thu 8/151:50 pmSEA - YKF
1 stop8h 02mWestJet
Sun 8/186:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/22$319
Wed 8/211:50 pmSEA - YKF
1 stop8h 02mWestJet
Sun 8/256:15 amYKF - SEA
2 stops11h 31mWestJet
Deal found 5/22$326
Tue 8/131:50 pmSEA - YKF
1 stop8h 02mWestJet
Sun 8/186:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/22$331
Fri 9/61:50 pmSEA - YKF
1 stop8h 02mWestJet
Fri 9/136:15 amYKF - SEA
2 stops11h 31mWestJet
Deal found 5/22$343
Wed 9/187:00 amSEA - YKF
1 stop7h 28mWestJet
Thu 9/266:15 amYKF - SEA
2 stops11h 33mWestJet
Deal found 5/22$348
Wed 7/176:15 pmSEA - YKF
1 stop20h 08mWestJet
Wed 7/246:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/22$358
Thu 9/57:00 amSEA - YKF
1 stop7h 23mWestJet
Mon 9/96:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/22$359
Tue 9/177:00 amSEA - YKF
1 stop7h 28mWestJet
Fri 9/206:15 amYKF - SEA
2 stops11h 33mWestJet
Deal found 5/21$375
Wed 9/187:00 amSEA - YKF
1 stop7h 28mWestJet
Thu 9/266:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/21$378

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

Find cheap flight options from Seattle to Kitchener-Waterloo specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,730,072 searches. Prices were last updated on May 22, 2024.
Fri 6/147:00 amSEA - YKF
1 stop15h 10mWestJet
Sun 9/226:20 pmYKF - SEA
2 stops23h 28mWestJet
Deal found 5/22$421
Fri 6/147:00 amSEA - YKF
1 stop15h 10mWestJet
Sun 9/226:20 pmYKF - SEA
1 stop21h 36mWestJet
Deal found 5/22$426
Sun 6/97:00 amSEA - YKF
1 stop15h 10mWestJet
Tue 6/186:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/22$440
Wed 6/57:00 amSEA - YKF
1 stop15h 10mWestJet
Sat 6/86:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/21$442
Thu 6/137:00 amSEA - YKF
1 stop15h 10mWestJet
Sat 6/226:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/22$443
Wed 6/127:00 amSEA - YKF
1 stop15h 10mWestJet
Sat 6/226:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/22$444
Sun 6/97:00 amSEA - YKF
1 stop15h 10mWestJet
Wed 6/126:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/22$447
Wed 6/127:00 amSEA - YKF
1 stop15h 10mWestJet
Wed 6/266:15 amYKF - SEA
1 stop17h 06mWestJet
Deal found 5/22$451
Thu 6/67:00 amSEA - YKF
1 stop15h 10mWestJet
Tue 6/116:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/22$455

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 2,730,072 searches. Data last updated May 22, 2024.
Thu 8/151:50 pmSEA - YKF
1 stop8h 02mWestJet
Sun 8/186:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/22$319
Tue 8/131:50 pmSEA - YKF
1 stop8h 02mWestJet
Sun 8/186:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/22$331
Wed 9/187:00 amSEA - YKF
1 stop7h 28mWestJet
Thu 9/266:15 amYKF - SEA
2 stops11h 33mWestJet
Deal found 5/22$348
Wed 7/176:15 pmSEA - YKF
1 stop20h 08mWestJet
Wed 7/246:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/22$358
Thu 9/57:00 amSEA - YKF
1 stop7h 23mWestJet
Mon 9/96:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/22$359
Tue 9/177:00 amSEA - YKF
1 stop7h 28mWestJet
Fri 9/206:15 amYKF - SEA
2 stops11h 33mWestJet
Deal found 5/21$375
Wed 9/187:00 amSEA - YKF
1 stop7h 28mWestJet
Thu 9/266:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/21$378
Mon 9/237:00 amSEA - YKF
1 stop7h 28mWestJet
Thu 9/266:15 amYKF - SEA
2 stops11h 33mWestJet
Deal found 5/21$394
Fri 8/231:50 pmSEA - YKF
1 stop8h 02mWestJet
Mon 8/266:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/21$396

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 2,730,072 searches. Data last updated May 22, 2024.
Tue 5/281:50 pmSEA - YKF
1 stop8h 20mWestJet
Tue 6/46:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/21$487
Tue 5/281:50 pmSEA - YKF
1 stop8h 20mWestJet
Wed 6/56:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/21$577
Mon 5/277:00 amSEA - YKF
1 stop15h 10mWestJet
Tue 6/46:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/21$631
Mon 5/277:00 amSEA - YKF
1 stop15h 10mWestJet
Mon 6/36:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/22$634
Mon 5/277:00 amSEA - YKF
1 stop15h 10mWestJet
Mon 6/36:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/21$690
Mon 5/277:00 amSEA - YKF
1 stop15h 10mWestJet
Mon 6/36:15 amYKF - SEA
2 stops11h 34mWestJet
Deal found 5/22$715
Mon 5/277:00 amSEA - YKF
1 stop15h 10mWestJet
Mon 6/36:15 amYKF - SEA
2 stops11h 34mWestJet
Deal found 5/21$768
Fri 5/317:00 amSEA - YKF
1 stop15h 10mWestJet
Sun 6/26:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/22$805
Fri 5/317:00 amSEA - YKF
1 stop15h 10mWestJet
Tue 6/46:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 5/22$865

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 2,730,072 searches. Data last updated May 22, 2024.
Mon 8/127:00 amSEA - YKF
1 stop7h 23mWestJet
Deal found 5/22$139
Wed 8/141:50 pmSEA - YKF
1 stop8h 02mWestJet
Deal found 5/22$154
Thu 9/51:50 pmSEA - YKF
1 stop8h 02mWestJet
Deal found 5/22$156
Wed 7/176:15 pmSEA - YKF
1 stop27h 37mWestJet
Deal found 5/22$174
Mon 7/227:00 amSEA - YKF
1 stop7h 23mWestJet
Deal found 5/22$175
Wed 6/261:50 pmSEA - YKF
1 stop8h 02mWestJet
Deal found 5/22$180
Mon 10/147:00 amSEA - YKF
1 stop7h 28mWestJet
Deal found 5/21$181
Sun 9/227:00 amSEA - YKF
1 stop7h 28mWestJet
Deal found 5/21$182
Sun 10/131:50 pmSEA - YKF
1 stop24h 38mWestJet
Deal found 5/22$183

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 2,730,072 searches. Data last updated May 22, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$319 - $482

Route

Depart

Return

Price

Seattle/Tacoma IntlToronto Kitchener-Waterloo

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Thu 8/15

1 stop8h 02m

Toronto Kitchener-Waterloo

Sun 8/18

1 stop9h 41m

$319

Seattle/Tacoma IntlToronto Kitchener-Waterloo

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Wed 8/21

1 stop8h 02m

Toronto Kitchener-Waterloo

Sun 8/25

2 stops11h 31m

$326

Seattle/Tacoma IntlToronto Kitchener-Waterloo

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Tue 8/13

1 stop8h 02m

Toronto Kitchener-Waterloo

Sun 8/18

1 stop9h 41m

$331

Seattle/Tacoma IntlToronto Kitchener-Waterloo

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Fri 9/6

1 stop8h 02m

Toronto Kitchener-Waterloo

Fri 9/13

2 stops11h 31m

$343

Seattle/Tacoma IntlToronto Kitchener-Waterloo

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Wed 9/18

1 stop7h 28m

Toronto Kitchener-Waterloo

Thu 9/26

2 stops11h 33m

$348

Seattle/Tacoma IntlToronto Kitchener-Waterloo

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Wed 7/17

1 stop20h 08m

Toronto Kitchener-Waterloo

Wed 7/24

1 stop9h 41m

$358

Seattle/Tacoma IntlToronto Kitchener-Waterloo

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Wed 6/12

1 stop20h 40m

Toronto Kitchener-Waterloo

Fri 6/14

2 stops25h 01m

$456

Seattle/Tacoma IntlToronto Kitchener-Waterloo

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Wed 6/12

1 stop20h 40m

Toronto Kitchener-Waterloo

Fri 6/14

1 stop9h 41m

$462

Seattle/Tacoma IntlToronto Kitchener-Waterloo

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Wed 6/19

2 stops24h 53m

Toronto Kitchener-Waterloo

Tue 6/25

1 stop9h 41m

$482

Flights are sorted by cheapest first

Deals found on 5/22

When is the cheapest time 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 May 19, 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.

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 May 22, 2024.
WestJet
7.5
Good
2,898 reviews
Check prices

Crew

8.2

Overall

7.5

Boarding

7.7

Comfort

7.3

Entertainment

6.5

Food

6.5

Reviews

1 / 10

We had a great experience with the flight back to Toronto and crew were awesome.

WestJet
7.5
Good
2,898 reviews
WestJet
7.5
Good
2,898 reviews
Check prices

Crew

8.2

Overall

7.5

Boarding

7.7

Comfort

7.3

Entertainment

6.5

Food

6.5

Reviews

1 / 10

We had a great experience with the flight back to Toronto and crew were awesome.

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. 0 airlines 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 $400 on Cheapflights?

    Yes, there are multiple flights from Seattle to Toronto Kitchener-Waterloo Airport for under $400. The cheapest flight booked recently is on WestJet for just $319, but on average you can expect to pay $386.

  • Are there last-minute flights available from Seattle to Toronto Kitchener-Waterloo Airport for under $500?

    There are currently 12+ open flights from Seattle to Toronto Kitchener-Waterloo Airport within the next 7 days for less than $500.

  • 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 5/22.

See more FAQs

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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.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Kitchener-Waterloo?

Deals for Seattle to Kitchener-Waterloo flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Kitchener-Waterloo?

Cheapflights helps you find that perfect flight to Kitchener-Waterloo from Seattle by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Seattle to Kitchener-Waterloo with no change fees?

Need flexible booking options for your flight to Kitchener-Waterloo from Seattle? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Seattle to Kitchener-Waterloo become cheaper?

Yes! Start tracking prices for Seattle to Kitchener-Waterloo flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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