When did momondo last update prices for flights from Key West Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Key West Airport to Seattle/Tacoma Intl Airport were last updated today.

How old do you have to be to fly from Key West Airport to Seattle/Tacoma Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Key West Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$220 Cheap Flights from Key West to Seattle in 2026/27

Find the cheapest flights from Key West to Seattle

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:40 am - 2:19 pmEYW Key West-SEA Seattle/Tacoma Intl

9h 39m1 stop Atlanta Hartsfield-Jackson

7:22 am - 8:01 pmSEA Seattle/Tacoma Intl-EYW Key West

9h 39m1 stop Atlanta Hartsfield-Jackson

$586Delta

Thu, Oct 15 - Wed, Oct 28

2:32 pm - 10:23 pmEYW Key West-SEA Seattle/Tacoma Intl

10h 51m1 stop Dallas/Fort Worth

5:10 am - 4:55 pmSEA Seattle/Tacoma Intl-EYW Key West

8h 45m1 stop Dallas/Fort Worth

$589American Airlines

Tue, Nov 24 - Wed, Dec 2

5:05 pm - 12:42 amEYW Key West-SEA Seattle/Tacoma Intl

10h 37m1 stop Chicago O'Hare Intl

9:14 pm - 9:52 amSEA Seattle/Tacoma Intl-EYW Key West

9h 38m1 stop Miami

$642American Airlines

Tue, Nov 24 - Mon, Nov 30

10:24 am - 8:53 pmEYW Key West-SEA Seattle/Tacoma Intl

13h 29m2 stops Miami Phoenix Sky Harbor Intl

5:00 am - 4:54 pmSEA Seattle/Tacoma Intl-EYW Key West

8h 54m1 stop Dallas/Fort Worth

$657American Airlines

Thu, Oct 22 - Tue, Oct 27

5:28 pm - 11:59 pmEYW Key West-SEA Seattle/Tacoma Intl

9h 31m1 stop Miami

5:00 am - 7:33 pmSEA Seattle/Tacoma Intl-EYW Key West

11h 33m2 stops Dallas/Fort Worth Miami

$708American Airlines

Thu, Oct 15 - Wed, Oct 28

4:43 pm - 11:59 pmEYW Key West-SEA Seattle/Tacoma Intl

10h 16m1 stop Miami

11:36 pm - 11:46 amSEA Seattle/Tacoma Intl-EYW Key West

9h 10m1 stop Chicago O'Hare Intl

$709American Airlines

Tue, Nov 24 - Fri, Nov 27

4:43 pm - 11:59 pmEYW Key West-SEA Seattle/Tacoma Intl

10h 16m1 stop Miami

5:40 am - 6:46 pmSEA Seattle/Tacoma Intl-EYW Key West

10h 06m1 stop Charlotte Douglas

$763American Airlines

Tue, Nov 24 - Sat, Nov 28

1:43 pm - 12:10 amEYW Key West-SEA Seattle/Tacoma Intl

13h 27m2 stops Miami Dallas/Fort Worth

5:00 am - 7:33 pmSEA Seattle/Tacoma Intl-EYW Key West

11h 33m2 stops Dallas/Fort Worth Miami

$779American Airlines

Thu, Oct 15 - Wed, Oct 28

4:10 pm - 11:07 pmEYW Key West-SEA Seattle/Tacoma Intl

9h 57m1 stop Chicago O'Hare Intl

10:56 pm - 11:24 amSEA Seattle/Tacoma Intl-EYW Key West

9h 28m1 stop Chicago O'Hare Intl

$794United Airlines

Tue, Nov 24 - Mon, Nov 30

2:15 pm - 9:55 pmEYW Key West-SEA Seattle/Tacoma Intl

10h 40m1 stop Newark

10:48 pm - 1:29 pmSEA Seattle/Tacoma Intl-EYW Key West

11h 41m1 stop Newark

$1,256United Airlines

Wed, Oct 14 - Sat, Oct 17

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American Airlines flights from Key West to Seattle

Our best American Airlines deals on Key West to Seattle flight tickets

American Airlines

Oct 22

EYW10:24 amKey West

13h 29m

2 stops

SEA8:53 pmSeattle/Tacoma Intl

Oct 27

SEA5:00 amSeattle/Tacoma Intl

8h 54m

1 stop

EYW4:54 pmKey West

$657

American Airlines

Oct 15

EYW5:28 pmKey West

9h 31m

1 stop

SEA11:59 pmSeattle/Tacoma Intl

Oct 28

SEA5:00 amSeattle/Tacoma Intl

11h 33m

2 stops

EYW7:33 pmKey West

$708

American Airlines

Oct 15

EYW1:43 pmKey West

13h 27m

2 stops

SEA12:10 amSeattle/Tacoma Intl

Oct 28

SEA5:00 amSeattle/Tacoma Intl

11h 33m

2 stops

EYW7:33 pmKey West

$779

United Airlines flights from Key West to Seattle

Our best United Airlines deals on Key West to Seattle flight tickets

United Airlines

Oct 14

EYW2:15 pmKey West

10h 40m

1 stop

SEA9:55 pmSeattle/Tacoma Intl

Oct 17

SEA10:48 pmSeattle/Tacoma Intl

11h 41m

1 stop

EYW1:29 pmKey West

$1,256

United Airlines

Oct 14

EYW2:15 pmKey West

10h 40m

1 stop

SEA9:55 pmSeattle/Tacoma Intl

Oct 17

SEA6:30 amSeattle/Tacoma Intl

27h 59m

2 stops

EYW1:29 pmKey West

$1,303

United Airlines

Oct 14

EYW2:15 pmKey West

10h 40m

1 stop

SEA9:55 pmSeattle/Tacoma Intl

Oct 17

SEA11:13 pmSeattle/Tacoma Intl

35h 16m

2 stops

EYW1:29 pmKey West

$1,366

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Thu 10/15

7:40 am-2:19 pm

1 stop9h 39m

Seattle/Tacoma Intl

Wed 10/28

7:22 am-8:01 pm

1 stop9h 39m

$586

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Tue 11/24

2:32 pm-10:23 pm

1 stop10h 51m

Seattle/Tacoma Intl

Wed 12/2

5:10 am-4:55 pm

1 stop8h 45m

$589

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Tue 11/24

5:05 pm-12:42 am

1 stop10h 37m

Seattle/Tacoma Intl

Mon 11/30

9:14 pm-9:52 am

1 stop9h 38m

$642

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Thu 10/22

10:24 am-8:53 pm

2 stops13h 29m

Seattle/Tacoma Intl

Tue 10/27

5:00 am-4:54 pm

1 stop8h 54m

$657

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Thu 10/15

5:28 pm-11:59 pm

1 stop9h 31m

Seattle/Tacoma Intl

Wed 10/28

5:00 am-7:33 pm

2 stops11h 33m

$708

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Tue 11/24

4:43 pm-11:59 pm

1 stop10h 16m

Seattle/Tacoma Intl

Fri 11/27

11:36 pm-11:46 am

1 stop9h 10m

$709

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Tue 11/24

4:43 pm-11:59 pm

1 stop10h 16m

Seattle/Tacoma Intl

Sat 11/28

5:40 am-6:46 pm

1 stop10h 06m

$763

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Thu 10/15

1:43 pm-12:10 am

2 stops13h 27m

Seattle/Tacoma Intl

Wed 10/28

5:00 am-7:33 pm

2 stops11h 33m

$779

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Tue 11/24

4:10 pm-11:07 pm

1 stop9h 57m

Seattle/Tacoma Intl

Mon 11/30

10:56 pm-11:24 am

1 stop9h 28m

$794

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Wed 10/14

2:15 pm-9:55 pm

1 stop10h 40m

Seattle/Tacoma Intl

Sat 10/17

10:48 pm-1:29 pm

1 stop11h 41m

$1,256

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Key West to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Key West to Seattle/Tacoma Intl?

United Airlines is the most popular carrier operating from Key West to Seattle/Tacoma Intl

When to book flights from Key West to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Key West to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Key West to Seattle (EYW to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Key West to Seattle

Best Price Found	$220
Fastest flight time	13h 13m
Direct flights	None

The best one-way flight to Seattle from Key West in the past 72 hours is $220. The best round-trip flight deal from Key West to Seattle found on momondo in the last 72 hours is $586.

The fastest flight from Key West to Seattle takes 13h 13m

There are no direct flights from Key West to Seattle. There are no popular flight routes from Key West to Seattle.

Search flight deals

Frequently asked questions about flying from Key West to Seattle

How far is Key West to Seattle/Tacoma Intl by plane?
The straight-line distance from Key West to Seattle/Tacoma Intl is 2719.2 mi. 13h 13m is a normal flight duration for this route.
When did momondo last update prices for flights from Key West Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Key West Airport to Seattle/Tacoma Intl Airport were last updated today.
How old do you have to be to fly from Key West Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Key West Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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Why use momondo?

Why should I use momondo to find a flight deal from Key West to Seattle?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Key West to Seattle. momondo saves you time and could save you money on your trip.

Can I find flights from Key West to Seattle with flexible booking policies on momondo?

momondo does allow users to show only those flights to Seattle from Key West which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Key West to Seattle?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seattle from Key West.

I’m not ready to book a flight from Key West to Seattle right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Key West to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.