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.

$186 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 - 11:20 pmEYW Key West-SEA Seattle/Tacoma Intl

10h 10m1 stop Chicago O'Hare Intl

11:15 pm - 1:52 pmSEA Seattle/Tacoma Intl-EYW Key West

11h 37m1 stop Newark

$600United Airlines

Fri, Nov 13 - Tue, Nov 17

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

2:26 pm - 7:57 pmEYW Key West-SEA Seattle/Tacoma Intl

8h 31m1 stop Dallas/Fort Worth

11:34 pm - 3:06 pmSEA Seattle/Tacoma Intl-EYW Key West

12h 32m2 stops Chicago O'Hare Intl Charlotte Douglas

$728American Airlines

Fri, Nov 13 - Tue, Nov 17

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

11:14 am - 10:11 pmEYW Key West-SEA Seattle/Tacoma Intl

13h 57m2 stops Miami Dallas/Fort Worth

6:23 pm - 9:48 amSEA Seattle/Tacoma Intl-EYW Key West

12h 25m2 stops Phoenix Sky Harbor Intl Miami

$799American Airlines

Fri, Nov 13 - Tue, Nov 17

4:09 pm - 11:42 amEYW Key West-SEA Seattle/Tacoma Intl

22h 33m2 stops Chicago O'Hare Intl Los Angeles

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

12h 23m1 stop Newark

$834United Airlines

Fri, Feb 5 - Tue, Feb 9

4:09 pm - 4:38 pmEYW Key West-SEA Seattle/Tacoma Intl

27h 29m2 stops Chicago O'Hare Intl San Francisco

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

22h 48m2 stops Los Angeles Newark

$934United Airlines

Fri, Feb 5 - Tue, Feb 9

12:59 pm - 11:42 amEYW Key West-SEA Seattle/Tacoma Intl

25h 43m2 stops Chicago O'Hare Intl Los Angeles

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

22h 48m2 stops Los Angeles Newark

$943United Airlines

Fri, Feb 5 - Tue, Feb 9

4:09 pm - 1:51 pmEYW Key West-SEA Seattle/Tacoma Intl

24h 42m2 stops Chicago O'Hare Intl Denver Intl

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

22h 48m2 stops Los Angeles Newark

$960United Airlines

Fri, Feb 5 - Tue, Feb 9

3:41 pm - 10:27 pmEYW Key West-SEA Seattle/Tacoma Intl

9h 46m1 stop Charlotte Douglas

10:25 pm - 9:13 amSEA Seattle/Tacoma Intl-EYW Key West

7h 48m1 stop Miami

$1,512American Airlines

Fri, Jan 15 - Tue, Feb 2

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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

Nov 13

EYW2:26 pmKey West

8h 31m

1 stop

SEA7:57 pmSeattle/Tacoma Intl

Nov 17

SEA11:34 pmSeattle/Tacoma Intl

12h 32m

2 stops

EYW3:06 pmKey West

$728

American Airlines

Nov 13

EYW11:14 amKey West

13h 57m

2 stops

SEA10:11 pmSeattle/Tacoma Intl

Nov 17

SEA6:23 pmSeattle/Tacoma Intl

12h 25m

2 stops

EYW9:48 amKey West

$799

American Airlines

Jan 15

EYW3:41 pmKey West

9h 46m

1 stop

SEA10:27 pmSeattle/Tacoma Intl

Feb 2

SEA10:25 pmSeattle/Tacoma Intl

7h 48m

1 stop

EYW9:13 amKey West

$1,512

United Airlines flights from Key West to Seattle

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

United Airlines

Nov 13

EYW4:10 pmKey West

10h 10m

1 stop

SEA11:20 pmSeattle/Tacoma Intl

Nov 17

SEA11:15 pmSeattle/Tacoma Intl

11h 37m

1 stop

EYW1:52 pmKey West

$600

United Airlines

Feb 5

EYW12:59 pmKey West

9h 39m

1 stop

SEA7:38 pmSeattle/Tacoma Intl

Feb 9

SEA10:50 pmSeattle/Tacoma Intl

12h 23m

1 stop

EYW2:13 pmKey West

$672

United Airlines

Feb 5

EYW12:59 pmKey West

9h 39m

1 stop

SEA7:38 pmSeattle/Tacoma Intl

Feb 9

SEA12:25 pmSeattle/Tacoma Intl

22h 48m

2 stops

EYW2:13 pmKey West

$781

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Fri 11/13

4:10 pm-11:20 pm

1 stop10h 10m

Seattle/Tacoma Intl

Tue 11/17

11:15 pm-1:52 pm

1 stop11h 37m

$600

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

Fri 11/13

2:26 pm-7:57 pm

1 stop8h 31m

Seattle/Tacoma Intl

Tue 11/17

11:34 pm-3:06 pm

2 stops12h 32m

$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

Fri 11/13

11:14 am-10:11 pm

2 stops13h 57m

Seattle/Tacoma Intl

Tue 11/17

6:23 pm-9:48 am

2 stops12h 25m

$799

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Fri 2/5

4:09 pm-11:42 am

2 stops22h 33m

Seattle/Tacoma Intl

Tue 2/9

10:50 pm-2:13 pm

1 stop12h 23m

$834

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Fri 2/5

4:09 pm-4:38 pm

2 stops27h 29m

Seattle/Tacoma Intl

Tue 2/9

12:25 pm-2:13 pm

2 stops22h 48m

$934

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Fri 2/5

12:59 pm-11:42 am

2 stops25h 43m

Seattle/Tacoma Intl

Tue 2/9

12:25 pm-2:13 pm

2 stops22h 48m

$943

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Fri 2/5

4:09 pm-1:51 pm

2 stops24h 42m

Seattle/Tacoma Intl

Tue 2/9

12:25 pm-2:13 pm

2 stops22h 48m

$960

Quickest round-trip

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Fri 1/15

3:41 pm-10:27 pm

1 stop9h 46m

Seattle/Tacoma Intl

Tue 2/2

10:25 pm-9:13 am

1 stop7h 48m

$1,512

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?

Delta and American 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	$186
Fastest flight time	9h 39m
Direct flights	None

The best one-way flight to Seattle from Key West in the past 72 hours is $186. The best round-trip flight deal from Key West to Seattle found on momondo in the last 72 hours is $600.

The fastest flight from Key West to Seattle takes 9h 39m

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 39m 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.