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.

$226 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.

2:34 pm - 9:57 pmEYW Key West-SEA Seattle/Tacoma Intl

10h 23m1 stop Dallas/Fort Worth

6:00 am - 6:49 pmSEA Seattle/Tacoma Intl-EYW Key West

9h 49m1 stop Charlotte Douglas

$575American Airlines

Tue, Oct 13 - Sat, Oct 17

6:10 pm - 11:52 pmEYW Key West-SEA Seattle/Tacoma Intl

8h 42m1 stop Atlanta Hartsfield-Jackson

6:00 am - 5:15 pmSEA Seattle/Tacoma Intl-EYW Key West

8h 15m1 stop Atlanta Hartsfield-Jackson

$586Delta

Thu, Oct 15 - Wed, Oct 28

10:24 am - 7:44 pmEYW Key West-SEA Seattle/Tacoma Intl

12h 20m2 stops Miami Dallas/Fort Worth

6:00 am - 6:49 pmSEA Seattle/Tacoma Intl-EYW Key West

9h 49m1 stop Charlotte Douglas

$639American Airlines

Tue, Oct 13 - Sat, Oct 17

4:45 pm - 11:10 pmEYW Key West-SEA Seattle/Tacoma Intl

9h 25m1 stop Charlotte Douglas

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

8h 54m1 stop Dallas/Fort Worth

$644American Airlines

Fri, Oct 9 - Tue, Oct 13

1:43 pm - 10:37 pmEYW Key West-SEA Seattle/Tacoma Intl

11h 54m2 stops Miami Los Angeles

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

11h 33m2 stops Dallas/Fort Worth Miami

$703American Airlines

Tue, Oct 13 - Sat, Oct 17

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

9h 31m1 stop Miami

12:25 am - 4:58 pmSEA Seattle/Tacoma Intl-EYW Key West

13h 33m2 stops Dallas/Fort Worth Miami

$708American Airlines

Fri, Oct 9 - Mon, Oct 12

2:45 pm - 11:09 pmEYW Key West-SEA Seattle/Tacoma Intl

11h 24m1 stop Dallas/Fort Worth

11:17 pm - 2:05 pmSEA Seattle/Tacoma Intl-EYW Key West

11h 48m1 stop Philadelphia

$760American Airlines

Tue, Dec 22 - Sun, Dec 27

2:45 pm - 8:22 pmEYW Key West-SEA Seattle/Tacoma Intl

8h 37m1 stop Dallas/Fort Worth

11:59 pm - 2:05 pmSEA Seattle/Tacoma Intl-EYW Key West

11h 06m2 stops Chicago O'Hare Intl Philadelphia

$765American Airlines

Tue, Dec 22 - Sun, Dec 27

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

Fri, Oct 9 - Tue, Oct 13

3:02 pm - 11:42 pmEYW Key West-SEA Seattle/Tacoma Intl

11h 40m2 stops Charlotte Douglas Chicago O'Hare Intl

11:59 pm - 2:05 pmSEA Seattle/Tacoma Intl-EYW Key West

11h 06m2 stops Chicago O'Hare Intl Philadelphia

$829American Airlines

Tue, Dec 22 - Sun, Dec 27

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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 13

EYW2:34 pmKey West

10h 23m

1 stop

SEA9:57 pmSeattle/Tacoma Intl

Oct 17

SEA6:00 amSeattle/Tacoma Intl

9h 49m

1 stop

EYW6:49 pmKey West

$575

American Airlines

Oct 13

EYW10:24 amKey West

12h 20m

2 stops

SEA7:44 pmSeattle/Tacoma Intl

Oct 17

SEA6:00 amSeattle/Tacoma Intl

9h 49m

1 stop

EYW6:49 pmKey West

$639

American Airlines

Oct 9

EYW4:45 pmKey West

9h 25m

1 stop

SEA11:10 pmSeattle/Tacoma Intl

Oct 13

SEA5:00 amSeattle/Tacoma Intl

8h 54m

1 stop

EYW4:54 pmKey West

$644

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

$1,088

United Airlines

Oct 14

EYW2:15 pmKey West

10h 40m

1 stop

SEA9:55 pmSeattle/Tacoma Intl

Oct 17

SEA12:16 pmSeattle/Tacoma Intl

22h 13m

2 stops

EYW1:29 pmKey West

$1,215

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

$1,264

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Tue 10/13

2:34 pm-9:57 pm

1 stop10h 23m

Seattle/Tacoma Intl

Sat 10/17

6:00 am-6:49 pm

1 stop9h 49m

$575

Quickest round-trip

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Thu 10/15

6:10 pm-11:52 pm

1 stop8h 42m

Seattle/Tacoma Intl

Wed 10/28

6:00 am-5:15 pm

1 stop8h 15m

$586

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Tue 10/13

10:24 am-7:44 pm

2 stops12h 20m

Seattle/Tacoma Intl

Sat 10/17

6:00 am-6:49 pm

1 stop9h 49m

$639

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Fri 10/9

4:45 pm-11:10 pm

1 stop9h 25m

Seattle/Tacoma Intl

Tue 10/13

5:00 am-4:54 pm

1 stop8h 54m

$644

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Tue 10/13

1:43 pm-10:37 pm

2 stops11h 54m

Seattle/Tacoma Intl

Sat 10/17

5:00 am-7:33 pm

2 stops11h 33m

$703

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Fri 10/9

5:28 pm-11:59 pm

1 stop9h 31m

Seattle/Tacoma Intl

Mon 10/12

12:25 am-4:58 pm

2 stops13h 33m

$708

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Tue 12/22

2:45 pm-11:09 pm

1 stop11h 24m

Seattle/Tacoma Intl

Sun 12/27

11:17 pm-2:05 pm

1 stop11h 48m

$760

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Tue 12/22

2:45 pm-8:22 pm

1 stop8h 37m

Seattle/Tacoma Intl

Sun 12/27

11:59 pm-2:05 pm

2 stops11h 06m

$765

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Fri 10/9

1:43 pm-12:10 am

2 stops13h 27m

Seattle/Tacoma Intl

Tue 10/13

5:00 am-7:33 pm

2 stops11h 33m

$779

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Tue 12/22

3:02 pm-11:42 pm

2 stops11h 40m

Seattle/Tacoma Intl

Sun 12/27

11:59 pm-2:05 pm

2 stops11h 06m

$829

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?

American Airlines and Delta are the most popular carriers 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	$226
Fastest flight time	9h 28m
Direct flights	None

The best one-way flight to Seattle from Key West in the past 72 hours is $226. The best round-trip flight deal from Key West to Seattle found on momondo in the last 72 hours is $575.

The fastest flight from Key West to Seattle takes 9h 28m

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. 9h 28m 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.