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Cheap flights from Kitchener-Waterloo (YKF) to Seattle (SEA) from $183

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 8/11. 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.
YKF — SEA
Jun 11 — Jun 181
From?
To?
Tue 6/11
Tue 6/18
1 adult, Economy
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Cheap flight deals from Kitchener-Waterloo to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Kitchener-Waterloo (YKF) to Seattle (SEA). 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 6, 2024.

Round-trip from

$247

One-way from

$241
From Toronto Kitchener-Waterloo to Seattle/Tacoma Intl
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One-way flight from Toronto Kitchener-Waterloo to Seattle/Tacoma Intl
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How far in advance should I book a flight from Toronto Kitchener-Waterloo Airport to Seattle?

Travelers have found it’s best to book a flight 22 days in advance to save up to 92% 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 22 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 $434, or $673 for flights within the next 24 hours.

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

October can be a great time to fly to Seattle from Toronto Kitchener-Waterloo Airport with a flight ticket averaging about $521. Cheapflights users have found deals in the month of October for as cheap as $333. The most expensive prices can be found in the month of December.

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

When flying from Toronto Kitchener-Waterloo Airport to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Find cheap flight options from Kitchener-Waterloo to Seattle specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Prices were last updated on June 6, 2024.
Tue 7/166:15 amYKF - SEA
1 stop9h 44mWestJet
Sat 7/201:50 pmSEA - YKF
1 stop8h 02mWestJet
Deal found 6/6$346
Sat 7/276:15 amYKF - SEA
1 stop9h 44mWestJet
Sat 8/31:50 pmSEA - YKF
1 stop8h 02mWestJet
Deal found 6/6$360
Tue 7/236:15 amYKF - SEA
1 stop9h 44mWestJet
Fri 7/261:50 pmSEA - YKF
1 stop8h 02mWestJet
Deal found 6/5$366
Wed 7/176:15 amYKF - SEA
1 stop17h 07mWestJet
Thu 7/187:00 amSEA - YKF
1 stop7h 23mWestJet
Deal found 6/6$373
Sun 7/286:15 amYKF - SEA
1 stop9h 44mWestJet
Sat 8/31:50 pmSEA - YKF
1 stop8h 02mWestJet
Deal found 6/6$374
Mon 7/296:15 amYKF - SEA
1 stop9h 44mWestJet
Sat 8/106:15 pmSEA - YKF
1 stop27h 37mWestJet
Deal found 6/6$376
Sat 7/136:15 amYKF - SEA
1 stop14h 07mWestJet
Wed 7/171:50 pmSEA - YKF
1 stop8h 02mWestJet
Deal found 6/5$377
Fri 7/266:15 amYKF - SEA
1 stop17h 07mWestJet
Sun 8/47:00 amSEA - YKF
1 stop14h 52mWestJet
Deal found 6/6$399
Mon 7/156:15 amYKF - SEA
1 stop17h 07mWestJet
Mon 7/297:00 amSEA - YKF
1 stop14h 52mWestJet
Deal found 6/4$400

Kitchener-Waterloo to Seattle 2024 flight deals

Discover exclusive flight deals for travel between Kitchener-Waterloo and Seattle in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
Tue 7/166:15 amYKF - SEA
1 stop9h 44mWestJet
Sat 7/201:50 pmSEA - YKF
1 stop8h 02mWestJet
Deal found 6/6$346
Fri 8/236:15 amYKF - SEA
1 stop9h 41mWestJet
Tue 8/271:50 pmSEA - YKF
1 stop8h 02mWestJet
Deal found 6/6$349
Fri 8/166:15 amYKF - SEA
2 stops11h 31mWestJet
Mon 8/267:00 amSEA - YKF
1 stop7h 23mWestJet
Deal found 6/6$354
Sat 7/276:15 amYKF - SEA
1 stop9h 44mWestJet
Sat 8/31:50 pmSEA - YKF
1 stop8h 02mWestJet
Deal found 6/6$360
Sun 8/256:15 amYKF - SEA
2 stops11h 31mWestJet
Thu 8/291:50 pmSEA - YKF
1 stop8h 02mWestJet
Deal found 6/5$365
Mon 8/196:15 amYKF - SEA
1 stop9h 41mWestJet
Thu 8/221:50 pmSEA - YKF
1 stop8h 02mWestJet
Deal found 6/5$366
Mon 8/196:15 amYKF - SEA
1 stop9h 41mWestJet
Tue 8/271:50 pmSEA - YKF
1 stop8h 02mWestJet
Deal found 6/6$369
Tue 8/136:15 amYKF - SEA
1 stop9h 41mWestJet
Fri 8/306:15 pmSEA - YKF
1 stop27h 37mWestJet
Deal found 6/6$373
Sun 7/286:15 amYKF - SEA
1 stop9h 44mWestJet
Sat 8/31:50 pmSEA - YKF
1 stop8h 02mWestJet
Deal found 6/6$374

Kitchener-Waterloo to Seattle flights leaving soon

Find last-minute flight options from Kitchener-Waterloo to Seattle 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 3,050,429 searches. Data last updated June 6, 2024.
Tue 6/116:15 amYKF - SEA
1 stop17h 05mWestJet
Tue 6/187:00 amSEA - YKF
1 stop14h 52mWestJet
Deal found 6/4$458
Fri 6/146:15 amYKF - SEA
1 stop17h 05mWestJet
Thu 6/201:50 pmSEA - YKF
1 stop8h 02mWestJet
Deal found 6/6$574
Sat 6/159:40 pmYKF - SEA
1 stop18h 16mMultiple Airlines
Mon 6/246:15 pmSEA - YKF
2 stops14h 55mMultiple Airlines
Deal found 6/6$605
Thu 6/136:15 amYKF - SEA
1 stop9h 41mWestJet
Tue 6/187:00 amSEA - YKF
1 stop14h 52mWestJet
Deal found 6/5$615
Sun 6/166:15 amYKF - SEA
1 stop9h 41mMultiple Airlines
Mon 6/2410:03 pmSEA - YKF
2 stops29h 37mMultiple Airlines
Deal found 6/6$618
Sat 6/159:40 pmYKF - SEA
1 stop18h 16mMultiple Airlines
Mon 6/246:15 pmSEA - YKF
1 stop9h 25mMultiple Airlines
Deal found 6/6$633
Sun 6/166:15 amYKF - SEA
1 stop9h 41mWestJet
Mon 6/247:00 amSEA - YKF
1 stop14h 52mWestJet
Deal found 6/6$637
Tue 6/116:15 amYKF - SEA
1 stop9h 41mWestJet
Tue 6/256:15 pmSEA - YKF
1 stop27h 37mWestJet
Deal found 6/5$639
Sun 6/166:15 amYKF - SEA
1 stop9h 41mWestJet
Tue 6/251:50 pmSEA - YKF
1 stop8h 02mWestJet
Deal found 6/6$660

One-way flights to Seattle from Kitchener-Waterloo

Search for one-way flight options from Kitchener-Waterloo to Seattle. 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 3,050,429 searches. Data last updated June 6, 2024.
Sun 8/116:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 6/5$183
Mon 7/156:15 amYKF - SEA
2 stops11h 31mWestJet
Deal found 6/5$189
Wed 7/246:15 amYKF - SEA
1 stop9h 44mWestJet
Deal found 6/5$190
Mon 8/126:20 pmYKF - SEA
1 stop26h 01mWestJet
Deal found 6/5$194
Sun 8/186:15 amYKF - SEA
1 stop9h 41mWestJet
Deal found 6/6$202
Fri 8/236:15 amYKF - SEA
2 stops11h 31mWestJet
Deal found 6/4$204
Fri 9/206:15 amYKF - SEA
2 stops11h 33mWestJet
Deal found 6/5$205
Sun 6/236:15 amYKF - SEA
2 stops11h 31mWestJet
Deal found 6/4$207
Fri 8/306:15 amYKF - SEA
1 stop14h 06mWestJet
Deal found 6/5$216

Find flights from Kitchener-Waterloo to Seattle within your budget

Customize your flight search to find flights from Kitchener-Waterloo to Seattle 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 3,050,429 searches. Data last updated June 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$346 - $443

Route

Depart

Return

Price

Toronto Kitchener-WaterlooSeattle/Tacoma Intl

YKF - SEA

YKFSEA

Toronto Kitchener-Waterloo

Tue 7/16

1 stop9h 44m

Seattle/Tacoma Intl

Sat 7/20

1 stop8h 02m

$346

Toronto Kitchener-WaterlooSeattle/Tacoma Intl

YKF - SEA

YKFSEA

Toronto Kitchener-Waterloo

Sun 8/18

1 stop9h 41m

Seattle/Tacoma Intl

Mon 8/26

1 stop7h 23m

$349

Toronto Kitchener-WaterlooSeattle/Tacoma Intl

YKF - SEA

YKFSEA

Toronto Kitchener-Waterloo

Fri 8/16

2 stops11h 31m

Seattle/Tacoma Intl

Mon 8/26

1 stop7h 23m

$354

Toronto Kitchener-WaterlooSeattle/Tacoma Intl

YKF - SEA

YKFSEA

Toronto Kitchener-Waterloo

Sat 7/27

1 stop9h 44m

Seattle/Tacoma Intl

Sat 8/3

1 stop8h 02m

$360

Toronto Kitchener-WaterlooSeattle/Tacoma Intl

YKF - SEA

YKFSEA

Toronto Kitchener-Waterloo

Sun 8/25

2 stops11h 31m

Seattle/Tacoma Intl

Thu 8/29

1 stop8h 02m

$365

Toronto Kitchener-WaterlooSeattle/Tacoma Intl

YKF - SEA

YKFSEA

Toronto Kitchener-Waterloo

Tue 7/23

1 stop9h 44m

Seattle/Tacoma Intl

Fri 7/26

1 stop8h 02m

$366

Toronto Kitchener-WaterlooSeattle/Tacoma Intl

YKF - SEA

YKFSEA

Toronto Kitchener-Waterloo

Tue 7/23

1 stop18h 19m

Seattle/Tacoma Intl

Wed 8/7

1 stop9h 25m

$427

Toronto Kitchener-WaterlooSeattle/Tacoma Intl

YKF - SEA

YKFSEA

Toronto Kitchener-Waterloo

Wed 7/24

1 stop9h 44m

Seattle/Tacoma Intl

Wed 8/7

1 stop9h 25m

$431

Toronto Kitchener-WaterlooSeattle/Tacoma Intl

YKF - SEA

YKFSEA

Toronto Kitchener-Waterloo

Tue 7/23

1 stop18h 19m

Seattle/Tacoma Intl

Sun 8/4

1 stop9h 25m

$443

Flights are sorted by cheapest first

Deals found on 6/6

No data available for this route at this time. Please check back soon.

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

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

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

SEA

Temperature

41 - 66.2 °F

If weather is an important factor for your trip to Seattle, 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 Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated June 6, 2024.
WestJet
7.5
Good
2,856 reviews

Boarding

7.6

Crew

8.1

Comfort

7.3

Food

6.4

Entertainment

6.4

Overall

7.5

Reviews

1 / 10

It’s a discount flight so you have to expect to be crammed in. Then there is the food strike at a supplier we were all warned of and they were good with snacks. The attendants were great. I’ll fly them a hand I recommend them, for what they are.

WestJet
7.5
Good
2,856 reviews
WestJet
7.5
Good
2,856 reviews

Boarding

7.6

Crew

8.1

Comfort

7.3

Food

6.4

Entertainment

6.4

Overall

7.5

Reviews

1 / 10

It’s a discount flight so you have to expect to be crammed in. Then there is the food strike at a supplier we were all warned of and they were good with snacks. The attendants were great. I’ll fly them a hand I recommend them, for what they are.

Air Canada
7.0
Good
7,044 reviews
WestJet
7.5
Good
2,856 reviews

Boarding

7.6

Crew

8.1

Comfort

7.3

Food

6.4

Entertainment

6.4

Overall

7.5

Reviews

1 / 10

It’s a discount flight so you have to expect to be crammed in. Then there is the food strike at a supplier we were all warned of and they were good with snacks. The attendants were great. I’ll fly them a hand I recommend them, for what they are.

Related info for your journey

Find useful and relevant information for your journey from Kitchener-Waterloo to Seattle. 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 into for flights to Seattle from Toronto Kitchener-Waterloo?

    For a flight from Toronto Kitchener-Waterloo to Seattle, you will be flying into Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 0 inbound flights from Toronto Kitchener-Waterloo per day. 0 airlines have flights to Seattle/Tacoma Intl from Toronto Kitchener-Waterloo on a regular basis.

  • Can I find flights from Toronto Kitchener-Waterloo Airport to Seattle for under $400 on Cheapflights?

    Yes, there are multiple flights from Toronto Kitchener-Waterloo Airport to Seattle for under $400. The cheapest flight booked recently is on WestJet for just $346, but on average you can expect to pay $375.

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

    There are currently 20+ open flights from Toronto Kitchener-Waterloo Airport to Seattle within the next 7 days for less than $500.

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

    Cheapflights users have booked flights from Toronto Kitchener-Waterloo Airport to Seattle round-trip from $346.

  • What does YKF to SEA mean?

    YKF stands for Toronto Kitchener-Waterloo Airport, while SEA stands for Seattle/Tacoma Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

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

    The amount of baggage you can bring on your Kitchener-Waterloo to Seattle 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 Kitchener-Waterloo to Seattle with specific airlines?

    Yes, Cheapflights allows you to browse and filter Kitchener-Waterloo to Seattle 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 Kitchener-Waterloo to Seattle that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Kitchener-Waterloo to Seattle 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 Kitchener-Waterloo to Seattle that allow pets onboard?

    Many airlines flying from Kitchener-Waterloo to Seattle 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 Kitchener-Waterloo to Seattle?

    Yes, you can often find last-minute deals on Kitchener-Waterloo to Seattle 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 Toronto Kitchener-Waterloo Airport to Seattle flight deals updated?

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

  • What is the cheapest month to book a flight from Toronto Kitchener-Waterloo Airport to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Toronto Kitchener-Waterloo Airport to Seattle (average of $247). Flying from Toronto Kitchener-Waterloo Airport to Seattle in July is currently the most expensive (average of $406). 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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See prices for flight routes from nearby airports that may be better suited for you.

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Search flights from Kitchener-Waterloo to Seattle by cabin class

Find flights from Kitchener-Waterloo to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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