EYW - SEA

$186 Find Cheap Flights from Key West to Seattle - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$505
Typical prices: $428-$651
United Airlines
Sat 11/24Mon 11/26
EYW - SEA • 1 stop
Cheapest one-way
$186
Typical prices: $430-$557
Multiple Airlines
Tue 12/11
EYW - SEA • 2 stops
Nonstop flights
There are currently no direct flights between Key West and Seattle. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
Cheapest • 23% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $509 (round-trip)
Shortest trip • 8h 51m (one-way)
Insights
Insights
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Flight Deals

Cheap Flights from Key West to Seattle (EYW-SEA)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Key West to Seattle

Tue, Nov 24 - Thu, Nov 26
United Airlines Logo
4:10 pm - 11:07 pmEYW  Key West-SEA Seattle/Tacoma Intl
9h 57m1 stop Chicago O'Hare Intl
United Airlines Logo
11:10 pm - 1:52 pmSEA  Seattle/Tacoma Intl-EYW Key West
11h 42m1 stop Newark
$505United Airlines
Thu, Dec 3 - Mon, Dec 7
United Airlines Logo
4:10 pm - 10:43 pmEYW  Key West-SEA Seattle/Tacoma Intl
9h 33m1 stop Chicago O'Hare Intl
United Airlines Logo
11:33 pm - 2:36 pmSEA  Seattle/Tacoma Intl-EYW Key West
12h 03m1 stop Newark
$549United Airlines
Fri, Nov 13 - Tue, Nov 17
United Airlines Logo
4:10 pm - 11:20 pmEYW  Key West-SEA Seattle/Tacoma Intl
10h 10m1 stop Chicago O'Hare Intl
United Airlines Logo
11:15 pm - 1:52 pmSEA  Seattle/Tacoma Intl-EYW Key West
11h 37m1 stop Newark
$600United Airlines
Thu, Dec 3 - Mon, Dec 7
United Airlines Logo
4:10 pm - 10:43 pmEYW  Key West-SEA Seattle/Tacoma Intl
9h 33m1 stop Chicago O'Hare Intl
United Airlines Logo
12:25 pm - 11:24 amSEA  Seattle/Tacoma Intl-EYW Key West
19h 59m2 stops Los Angeles Chicago O'Hare Intl
$643United Airlines
Fri, Feb 5 - Tue, Feb 9
United Airlines Logo
12:59 pm - 7:38 pmEYW  Key West-SEA Seattle/Tacoma Intl
9h 39m1 stop Chicago O'Hare Intl
United Airlines Logo
10:50 pm - 2:13 pmSEA  Seattle/Tacoma Intl-EYW Key West
12h 23m1 stop Newark
$672United Airlines
Thu, Dec 3 - Mon, Dec 7
United Airlines Logo
4:10 pm - 4:12 pmEYW  Key West-SEA Seattle/Tacoma Intl
27h 02m3 stops Chicago O'Hare Intl Phoenix Sky Harbor Intl Los Angeles
United Airlines Logo
11:33 pm - 2:36 pmSEA  Seattle/Tacoma Intl-EYW Key West
12h 03m1 stop Newark
$703United Airlines
Fri, Nov 13 - Tue, Nov 17
American Airlines Logo
2:26 pm - 7:57 pmEYW  Key West-SEA Seattle/Tacoma Intl
8h 31m1 stop Dallas/Fort Worth
American Airlines Logo
11:34 pm - 3:06 pmSEA  Seattle/Tacoma Intl-EYW Key West
12h 32m2 stops Chicago O'Hare Intl Charlotte Douglas
$728American Airlines
Fri, Feb 5 - Tue, Feb 9
United Airlines Logo
12:59 pm - 7:38 pmEYW  Key West-SEA Seattle/Tacoma Intl
9h 39m1 stop Chicago O'Hare Intl
United Airlines Logo
12:25 pm - 2:13 pmSEA  Seattle/Tacoma Intl-EYW Key West
22h 48m2 stops Los Angeles Newark
$781United Airlines
Tue, Nov 17 - Sat, Nov 21
United Airlines Logo
4:10 pm - 11:07 pmEYW  Key West-SEA Seattle/Tacoma Intl
9h 57m1 stop Chicago O'Hare Intl
United Airlines Logo
11:17 pm - 1:56 pmSEA  Seattle/Tacoma Intl-EYW Key West
11h 39m1 stop Newark
$794United Airlines
Fri, Nov 13 - Tue, Nov 17
American Airlines Logo
11:14 am - 10:11 pmEYW  Key West-SEA Seattle/Tacoma Intl
13h 57m2 stops Miami Dallas/Fort Worth
American Airlines Logo
6:23 pm - 9:48 amSEA  Seattle/Tacoma Intl-EYW Key West
12h 25m2 stops Phoenix Sky Harbor Intl Miami
$799American Airlines
Booking Insights

Price, demand and travel trends for Key West to Seattle flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Key West to Seattle?

Round-trip flights from Key West to Seattle typically range from $428 to $651. The lowest price found in the past 5 days was $505, on United Airlines.

Key details for Key West to Seattle flights

Low season

November

Cheapest flight

$186
Beat the crowds with an average 71% drop in travelers.
The most popular month to fly with an average 14% increase in travelers.
One-way flight from Key West to Seattle

When to book flights from Key West to Seattle

Are your dates flexible? Find out the best times to travel from Key West to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Key West to Seattle flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Key West to Seattle?

    Only Economy Class is available on flights from Key West to Seattle.

  • How long is a flight from Key West to Seattle?

    A nonstop flight from Key West to Seattle takes 00m, covering 2,715 miles.

  • Do I need a passport to fly from Key West to Seattle?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Key West to Seattle flight?

    Round-trip flights from Key West to Seattle range from $428 to $651, with an average of $489 over the past 12 months. Anything below $428 counts as a good deal.

  • Have flight prices from Key West to Seattle changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $505 to $1,785. That means the highest observed fare was about 4x higher than the lowest one.

  • How are flight prices from Key West to Seattle looking right now?

    One-way fares from Key West to Seattle are currently lower than usual. Average one-way flight prices are about $233, which is 55% below the typical average for this route.

  • What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates averaging $61 for economy cars. Top options include:

    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Hertz

  • Which airports can I use when flying from Key West to Seattle?

    Flights from Key West to Seattle usually depart from Key West (EYW) and arrive at Seattle/Tacoma Intl (SEA).

  • Which airports do connecting flights from Key West to Seattle pass through?

    Connecting flights from Key West to Seattle most commonly pass through:

    • Atlanta Hartsfield-Jackson (ATL) - 77% of one-stop connections
    • Dallas/Fort Worth (DFW) - 23% of one-stop connections

  • Can I save money by using flexible dates for flights from Key West to Seattle?

    Yes. Flexible dates can save you up to 46% on flights from Key West to Seattle. Thursday is the cheapest departure day at $388 round-trip on average, while Friday is the most expensive at $718, a difference of $330.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Key West to Seattle?

    Flying via Atlanta Hartsfield-Jackson (ATL) gives the shortest average 1-stop total travel time at 8h 51m, compared with 9h 24m via Dallas/Fort Worth (DFW).

  • What is the time difference between Key West and Seattle?

    Seattle is 3 hours behind Key West (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are Pike Place Market, Lumen Field and Space Needle. These are among the most viewed places in Seattle on KAYAK.

Your guide to booking Key West to Seattle flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Friday. On this route, Thursday flights average $388, about $330 less than Friday fares (46% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Key West to Seattle trip for April. Fares historically average $378 round-trip in that month - typically $440 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.

    • Coast Gateway Hotel
    • Seattle Airport Marriott
    • Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport

More options for your flight from Key West to Seattle

Complete your trip to Seattle with a hotel stay or car rental