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.

$313 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.

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

9h 57m1 stop Chicago O'Hare Intl

11:10 pm - 1:52 pmSEA Seattle/Tacoma Intl-EYW Key West

11h 42m1 stop Newark

$505United Airlines

Tue, Nov 24 - Thu, Nov 26

4:10 pm - 10:43 pmEYW Key West-SEA Seattle/Tacoma Intl

9h 33m1 stop Chicago O'Hare Intl

11:33 pm - 2:36 pmSEA Seattle/Tacoma Intl-EYW Key West

12h 03m1 stop Newark

$549United Airlines

Thu, Dec 3 - Mon, Dec 7

6:08 pm - 11:57 pmEYW Key West-SEA Seattle/Tacoma Intl

8h 49m1 stop Atlanta Hartsfield-Jackson

10:40 pm - 10:48 amSEA Seattle/Tacoma Intl-EYW Key West

9h 08m1 stop Atlanta Hartsfield-Jackson

$591Delta

Wed, Nov 18 - Sun, Nov 22

4:10 pm - 10:43 pmEYW Key West-SEA Seattle/Tacoma Intl

9h 33m1 stop Chicago O'Hare Intl

12:25 pm - 11:24 amSEA Seattle/Tacoma Intl-EYW Key West

19h 59m2 stops Los Angeles Chicago O'Hare Intl

$643United Airlines

Thu, Dec 3 - Mon, Dec 7

12:59 pm - 7:38 pmEYW Key West-SEA Seattle/Tacoma Intl

9h 39m1 stop Chicago O'Hare Intl

10:50 pm - 2:13 pmSEA Seattle/Tacoma Intl-EYW Key West

12h 23m1 stop Newark

$672United Airlines

Fri, Feb 5 - Tue, Feb 9

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

11:33 pm - 2:36 pmSEA Seattle/Tacoma Intl-EYW Key West

12h 03m1 stop Newark

$703United Airlines

Thu, Dec 3 - Mon, Dec 7

10:18 am - 8:09 pmEYW Key West-SEA Seattle/Tacoma Intl

12h 51m2 stops Miami Phoenix Sky Harbor Intl

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

9h 10m1 stop Chicago O'Hare Intl

$728American Airlines

Wed, Nov 18 - Sun, Nov 22

12:59 pm - 7:38 pmEYW Key West-SEA Seattle/Tacoma Intl

9h 39m1 stop Chicago O'Hare Intl

12:25 pm - 2:13 pmSEA Seattle/Tacoma Intl-EYW Key West

22h 48m2 stops Los Angeles Newark

$781United Airlines

Fri, Feb 5 - Tue, Feb 9

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

9h 57m1 stop Chicago O'Hare Intl

11:17 pm - 1:56 pmSEA Seattle/Tacoma Intl-EYW Key West

11h 39m1 stop Newark

$794United Airlines

Tue, Nov 17 - Sat, Nov 21

4:58 pm - 11:59 pmEYW Key West-SEA Seattle/Tacoma Intl

10h 01m1 stop Miami

9:14 pm - 9:44 amSEA Seattle/Tacoma Intl-EYW Key West

9h 30m1 stop Miami

$863American Airlines

Sat, Nov 28 - Sat, Dec 5

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Delta flights from Key West to Seattle

Our best Delta deals on Key West to Seattle flight tickets

Delta

Nov 18

EYW6:08 pmKey West

8h 49m

1 stop

SEA11:57 pmSeattle/Tacoma Intl

Nov 22

SEA10:40 pmSeattle/Tacoma Intl

9h 08m

1 stop

EYW10:48 amKey West

$591

Delta

Nov 10

EYW7:30 amKey West

10h 00m

1 stop

SEA2:30 pmSeattle/Tacoma Intl

Nov 12

SEA11:35 pmSeattle/Tacoma Intl

8h 13m

1 stop

EYW10:48 amKey West

$1,079

American Airlines flights from Key West to Seattle

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

American Airlines

Nov 18

EYW10:18 amKey West

12h 51m

2 stops

SEA8:09 pmSeattle/Tacoma Intl

Nov 22

SEA11:36 pmSeattle/Tacoma Intl

9h 10m

1 stop

EYW11:46 amKey West

$728

American Airlines

Nov 28

EYW4:58 pmKey West

10h 01m

1 stop

SEA11:59 pmSeattle/Tacoma Intl

Dec 5

SEA9:14 pmSeattle/Tacoma Intl

9h 30m

1 stop

EYW9:44 amKey West

$863

American Airlines

Nov 18

EYW11:14 amKey West

11h 55m

2 stops

SEA8:09 pmSeattle/Tacoma Intl

Nov 22

SEA9:45 pmSeattle/Tacoma Intl

10h 10m

2 stops

EYW10:55 amKey West

$864

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

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

Thu 11/26

11:10 pm-1:52 pm

1 stop11h 42m

$505

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Thu 12/3

4:10 pm-10:43 pm

1 stop9h 33m

Seattle/Tacoma Intl

Mon 12/7

11:33 pm-2:36 pm

1 stop12h 03m

$549

Quickest round-trip

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Wed 11/18

6:08 pm-11:57 pm

1 stop8h 49m

Seattle/Tacoma Intl

Sun 11/22

10:40 pm-10:48 am

1 stop9h 08m

$591

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Thu 12/3

4:10 pm-10:43 pm

1 stop9h 33m

Seattle/Tacoma Intl

Mon 12/7

12:25 pm-11:24 am

2 stops19h 59m

$643

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Fri 2/5

12:59 pm-7:38 pm

1 stop9h 39m

Seattle/Tacoma Intl

Tue 2/9

10:50 pm-2:13 pm

1 stop12h 23m

$672

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Thu 12/3

4:10 pm-4:12 pm

3 stops27h 02m

Seattle/Tacoma Intl

Mon 12/7

11:33 pm-2:36 pm

1 stop12h 03m

$703

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Wed 11/18

10:18 am-8:09 pm

2 stops12h 51m

Seattle/Tacoma Intl

Sun 11/22

11:36 pm-11:46 am

1 stop9h 10m

$728

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Fri 2/5

12:59 pm-7:38 pm

1 stop9h 39m

Seattle/Tacoma Intl

Tue 2/9

12:25 pm-2:13 pm

2 stops22h 48m

$781

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Tue 11/17

4:10 pm-11:07 pm

1 stop9h 57m

Seattle/Tacoma Intl

Sat 11/21

11:17 pm-1:56 pm

1 stop11h 39m

$794

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Sat 11/28

4:58 pm-11:59 pm

1 stop10h 01m

Seattle/Tacoma Intl

Sat 12/5

9:14 pm-9:44 am

1 stop9h 30m

$863

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 United Airlines 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	$313
Fastest flight time	9h 33m
Direct flights	None

The best one-way flight to Seattle from Key West in the past 72 hours is $313. The best round-trip flight deal from Key West to Seattle found on momondo in the last 72 hours is $505.

The fastest flight from Key West to Seattle takes 9h 33m

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 33m 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 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.