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.

$211 Cheap Flights from Key West to Seattle in 2026

Find the cheapest flights from Key West to Seattle

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

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

8h 41m1 stop Atlanta Hartsfield-Jackson

11:59 pm - 12:53 pmSEA Seattle/Tacoma Intl-EYW Key West

9h 54m1 stop Atlanta Hartsfield-Jackson

$459Delta

Sat, Oct 17 - Sat, Oct 24

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

9h 25m1 stop Charlotte Douglas

8:39 pm - 9:54 amSEA Seattle/Tacoma Intl-EYW Key West

10h 15m1 stop Miami

$492American Airlines

Fri, Oct 9 - Sat, Oct 17

2:20 pm - 11:36 pmEYW Key West-SEA Seattle/Tacoma Intl

12h 16m1 stop Newark

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

11h 41m1 stop Newark

$504United Airlines

Wed, Sep 23 - Sun, Sep 27

6:19 pm - 11:58 pmEYW Key West-SEA Seattle/Tacoma Intl

8h 39m1 stop Atlanta Hartsfield-Jackson

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

9h 39m1 stop Atlanta Hartsfield-Jackson

$575Delta

Tue, Sep 29 - Tue, Oct 6

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

9h 31m1 stop Miami

9:42 pm - 1:03 pmSEA Seattle/Tacoma Intl-EYW Key West

12h 21m2 stops Charlotte Douglas Miami

$614American Airlines

Fri, Oct 9 - Sat, Oct 17

1:47 pm - 9:52 pmEYW Key West-SEA Seattle/Tacoma Intl

11h 05m2 stops Miami Dallas/Fort Worth

8:39 pm - 9:54 amSEA Seattle/Tacoma Intl-EYW Key West

10h 15m1 stop Miami

$639American Airlines

Tue, Sep 29 - Tue, Oct 6

7:40 am - 8:27 pmEYW Key West-SEA Seattle/Tacoma Intl

15h 47m2 stops Atlanta Hartsfield-Jackson Los Angeles

11:59 pm - 10:47 amSEA Seattle/Tacoma Intl-EYW Key West

7h 48m1 stop Atlanta Hartsfield-Jackson

$671Delta

Sat, Oct 17 - Sat, Oct 24

11:30 am - 10:40 pmEYW Key West-SEA Seattle/Tacoma Intl

14h 10m2 stops Miami Los Angeles

5:00 am - 6:52 pmSEA Seattle/Tacoma Intl-EYW Key West

10h 52m1 stop Charlotte Douglas

$688American Airlines

Wed, Sep 23 - Sun, Sep 27

1:47 pm - 12:11 amEYW Key West-SEA Seattle/Tacoma Intl

13h 24m2 stops Miami Chicago O'Hare Intl

11:59 pm - 1:03 pmSEA Seattle/Tacoma Intl-EYW Key West

10h 04m2 stops Chicago O'Hare Intl Miami

$703American Airlines

Tue, Sep 29 - Tue, Oct 6

11:30 am - 8:29 pmEYW Key West-SEA Seattle/Tacoma Intl

11h 59m2 stops Miami Phoenix Sky Harbor Intl

11:59 pm - 1:17 pmSEA Seattle/Tacoma Intl-EYW Key West

10h 18m2 stops Dallas/Fort Worth Miami

$759American Airlines

Wed, Sep 23 - Sun, Sep 27

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United Airlines flights from Key West to Seattle

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

United Airlines

Sep 23

EYW2:20 pmKey West

12h 16m

1 stop

SEA11:36 pmSeattle/Tacoma Intl

Sep 27

SEA10:48 pmSeattle/Tacoma Intl

11h 41m

1 stop

EYW1:29 pmKey West

$504

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

$879

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

$895

American Airlines flights from Key West to Seattle

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

American Airlines

Oct 9

EYW4:45 pmKey West

9h 25m

1 stop

SEA11:10 pmSeattle/Tacoma Intl

Oct 17

SEA8:39 pmSeattle/Tacoma Intl

10h 15m

1 stop

EYW9:54 amKey West

$492

American Airlines

Oct 9

EYW5:28 pmKey West

9h 31m

1 stop

SEA11:59 pmSeattle/Tacoma Intl

Oct 17

SEA9:42 pmSeattle/Tacoma Intl

12h 21m

2 stops

EYW1:03 pmKey West

$614

American Airlines

Sep 29

EYW1:47 pmKey West

11h 05m

2 stops

SEA9:52 pmSeattle/Tacoma Intl

Oct 6

SEA8:39 pmSeattle/Tacoma Intl

10h 15m

1 stop

EYW9:54 amKey West

$639

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Sat 10/17

6:11 pm-11:52 pm

1 stop8h 41m

Seattle/Tacoma Intl

Sat 10/24

11:59 pm-12:53 pm

1 stop9h 54m

$459

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

Sat 10/17

8:39 pm-9:54 am

1 stop10h 15m

$492

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Wed 9/23

2:20 pm-11:36 pm

1 stop12h 16m

Seattle/Tacoma Intl

Sun 9/27

10:48 pm-1:29 pm

1 stop11h 41m

$504

Quickest round-trip

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Tue 9/29

6:19 pm-11:58 pm

1 stop8h 39m

Seattle/Tacoma Intl

Tue 10/6

7:22 am-8:01 pm

1 stop9h 39m

$575

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

Sat 10/17

9:42 pm-1:03 pm

2 stops12h 21m

$614

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Tue 9/29

1:47 pm-9:52 pm

2 stops11h 05m

Seattle/Tacoma Intl

Tue 10/6

8:39 pm-9:54 am

1 stop10h 15m

$639

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Sat 10/17

7:40 am-8:27 pm

2 stops15h 47m

Seattle/Tacoma Intl

Sat 10/24

11:59 pm-10:47 am

1 stop7h 48m

$671

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Wed 9/23

11:30 am-10:40 pm

2 stops14h 10m

Seattle/Tacoma Intl

Sun 9/27

5:00 am-6:52 pm

1 stop10h 52m

$688

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Tue 9/29

1:47 pm-12:11 am

2 stops13h 24m

Seattle/Tacoma Intl

Tue 10/6

11:59 pm-1:03 pm

2 stops10h 04m

$703

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Wed 9/23

11:30 am-8:29 pm

2 stops11h 59m

Seattle/Tacoma Intl

Sun 9/27

11:59 pm-1:17 pm

2 stops10h 18m

$759

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 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	$211
Fastest flight time	10h 40m
Direct flights	None

The best one-way flight to Seattle from Key West in the past 72 hours is $211. The best round-trip flight deal from Key West to Seattle found on momondo in the last 72 hours is $459.

The fastest flight from Key West to Seattle takes 10h 40m

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. 10h 40m 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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Kent

Olympia

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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.