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.

$429 Cheap Flights from Key West to Seattle in 2026/27

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.

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

$429United Airlines

Thu, Dec 3 - Sun, Dec 6

7:25 am - 2:38 pmEYW Key West-SEA Seattle/Tacoma Intl

10h 13m1 stop Atlanta Hartsfield-Jackson

8:30 am - 8:01 pmSEA Seattle/Tacoma Intl-EYW Key West

8h 31m1 stop Atlanta Hartsfield-Jackson

$447Delta

Fri, Dec 4 - Sun, Dec 6

6:06 pm - 11:55 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

$457Delta

Thu, Dec 3 - Sun, Dec 6

1:01 pm - 8:31 pmEYW Key West-SEA Seattle/Tacoma Intl

10h 30m1 stop Chicago O'Hare Intl

11:39 pm - 12:07 pmSEA Seattle/Tacoma Intl-EYW Key West

9h 28m1 stop Chicago O'Hare Intl

$459American Airlines

Thu, Dec 3 - Sun, Dec 6

7:25 am - 2:38 pmEYW Key West-SEA Seattle/Tacoma Intl

10h 13m1 stop Atlanta Hartsfield-Jackson

11:59 pm - 10:48 amSEA Seattle/Tacoma Intl-EYW Key West

7h 49m1 stop Atlanta Hartsfield-Jackson

$483Delta

Fri, Dec 4 - Tue, Dec 8

6:06 pm - 11:55 pmEYW Key West-SEA Seattle/Tacoma Intl

8h 49m1 stop Atlanta Hartsfield-Jackson

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

10h 12m1 stop Atlanta Hartsfield-Jackson

$490Delta

Wed, Dec 2 - Mon, Dec 7

6:06 pm - 11:55 pmEYW Key West-SEA Seattle/Tacoma Intl

8h 49m1 stop Atlanta Hartsfield-Jackson

11:59 pm - 10:48 amSEA Seattle/Tacoma Intl-EYW Key West

7h 49m1 stop Atlanta Hartsfield-Jackson

$500Delta

Wed, Dec 2 - Tue, Dec 8

6:06 pm - 12:39 pmEYW Key West-SEA Seattle/Tacoma Intl

21h 33m2 stops Atlanta Hartsfield-Jackson Los Angeles

11:59 pm - 10:48 amSEA Seattle/Tacoma Intl-EYW Key West

7h 49m1 stop Atlanta Hartsfield-Jackson

$501Delta

Thu, Dec 3 - Sun, Dec 6

6:06 pm - 11:55 pmEYW Key West-SEA Seattle/Tacoma Intl

8h 49m1 stop Atlanta Hartsfield-Jackson

3:21 pm - 10:48 amSEA Seattle/Tacoma Intl-EYW Key West

16h 27m2 stops Los Angeles Atlanta Hartsfield-Jackson

$516Delta

Wed, Dec 2 - Sun, Dec 6

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

8h 49m1 stop Atlanta Hartsfield-Jackson

6:00 am - 5:10 pmSEA Seattle/Tacoma Intl-EYW Key West

8h 10m1 stop Atlanta Hartsfield-Jackson

$532Delta

Wed, Nov 25 - Fri, Dec 4

Cheap last minute flights

Enter your travel dates to find the best prices.

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

8h 49m1 stop Atlanta Hartsfield-Jackson

6:00 am - 5:10 pmSEA Seattle/Tacoma Intl-EYW Key West

8h 10m1 stop Atlanta Hartsfield-Jackson

$568Delta

Tue, Nov 17 - Tue, Nov 24

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

8h 49m1 stop Atlanta Hartsfield-Jackson

8:25 am - 8:00 pmSEA Seattle/Tacoma Intl-EYW Key West

8h 35m1 stop Atlanta Hartsfield-Jackson

$621Delta

Tue, Nov 17 - Mon, Nov 23

4:45 pm - 12:35 amEYW Key West-SEA Seattle/Tacoma Intl

10h 50m1 stop Chicago O'Hare Intl

9:14 pm - 10:44 amSEA Seattle/Tacoma Intl-EYW Key West

10h 30m1 stop Miami

$636American Airlines

Sat, Nov 14 - Tue, Nov 17

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

8h 49m1 stop Atlanta Hartsfield-Jackson

6:00 am - 5:10 pmSEA Seattle/Tacoma Intl-EYW Key West

8h 10m1 stop Atlanta Hartsfield-Jackson

$647Delta

Fri, Nov 13 - Wed, Nov 18

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

$687United Airlines

Tue, Nov 17 - Thu, Nov 26

2:07 pm - 8:48 pmEYW Key West-SEA Seattle/Tacoma Intl

9h 41m1 stop Atlanta Hartsfield-Jackson

11:40 pm - 10:48 amSEA Seattle/Tacoma Intl-EYW Key West

8h 08m1 stop Atlanta Hartsfield-Jackson

$689Delta

Fri, Nov 13 - Sun, Nov 15

6:35 pm - 11:59 pmEYW Key West-SEA Seattle/Tacoma Intl

8h 24m1 stop Miami

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

9h 38m1 stop Miami

$699American Airlines

Tue, Nov 17 - Thu, Nov 26

4:45 pm - 12:35 amEYW Key West-SEA Seattle/Tacoma Intl

10h 50m1 stop Chicago O'Hare Intl

11:34 pm - 1:46 pmSEA Seattle/Tacoma Intl-EYW Key West

11h 12m2 stops Chicago O'Hare Intl Philadelphia

$700American Airlines

Sat, Nov 14 - Tue, Nov 17

6:35 pm - 11:59 pmEYW Key West-SEA Seattle/Tacoma Intl

8h 24m1 stop Miami

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

8h 54m1 stop Dallas/Fort Worth

$751American Airlines

Tue, Nov 17 - Sun, Nov 22

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

8h 49m1 stop Atlanta Hartsfield-Jackson

4:06 pm - 10:48 amSEA Seattle/Tacoma Intl-EYW Key West

15h 42m2 stops Portland Atlanta Hartsfield-Jackson

$760Delta

Tue, Nov 17 - Thu, Nov 26

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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

Dec 3

EYW1:01 pmKey West

10h 30m

1 stop

SEA8:31 pmSeattle/Tacoma Intl

Dec 6

SEA11:39 pmSeattle/Tacoma Intl

9h 28m

1 stop

EYW12:07 pmKey West

$459

American Airlines

Dec 2

EYW3:41 pmKey West

10h 07m

1 stop

SEA10:48 pmSeattle/Tacoma Intl

Dec 9

SEA6:00 amSeattle/Tacoma Intl

8h 44m

1 stop

EYW5:44 pmKey West

$579

American Airlines

Dec 2

EYW2:36 pmKey West

11h 02m

1 stop

SEA10:38 pmSeattle/Tacoma Intl

Dec 9

SEA6:00 amSeattle/Tacoma Intl

8h 44m

1 stop

EYW5:44 pmKey West

$589

Delta flights from Key West to Seattle

Our best Delta deals on Key West to Seattle flight tickets

Delta

Dec 4

EYW7:25 amKey West

10h 13m

1 stop

SEA2:38 pmSeattle/Tacoma Intl

Dec 6

SEA8:30 amSeattle/Tacoma Intl

8h 31m

1 stop

EYW8:01 pmKey West

$447

Delta

Dec 3

EYW6:06 pmKey West

8h 49m

1 stop

SEA11:55 pmSeattle/Tacoma Intl

Dec 6

SEA10:40 pmSeattle/Tacoma Intl

9h 08m

1 stop

EYW10:48 amKey West

$457

Delta

Dec 4

EYW7:25 amKey West

10h 13m

1 stop

SEA2:38 pmSeattle/Tacoma Intl

Dec 8

SEA11:59 pmSeattle/Tacoma Intl

7h 49m

1 stop

EYW10:48 amKey West

$483

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

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

Sun 12/6

11:33 pm-2:36 pm

1 stop12h 03m

$429

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Fri 12/4

7:25 am-2:38 pm

1 stop10h 13m

Seattle/Tacoma Intl

Sun 12/6

8:30 am-8:01 pm

1 stop8h 31m

$447

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Thu 12/3

6:06 pm-11:55 pm

1 stop8h 49m

Seattle/Tacoma Intl

Sun 12/6

10:40 pm-10:48 am

1 stop9h 08m

$457

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Thu 12/3

1:01 pm-8:31 pm

1 stop10h 30m

Seattle/Tacoma Intl

Sun 12/6

11:39 pm-12:07 pm

1 stop9h 28m

$459

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Fri 12/4

7:25 am-2:38 pm

1 stop10h 13m

Seattle/Tacoma Intl

Tue 12/8

11:59 pm-10:48 am

1 stop7h 49m

$483

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Wed 12/2

6:06 pm-11:55 pm

1 stop8h 49m

Seattle/Tacoma Intl

Mon 12/7

11:59 pm-1:11 pm

1 stop10h 12m

$490

Quickest round-trip

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Wed 12/2

6:06 pm-11:55 pm

1 stop8h 49m

Seattle/Tacoma Intl

Tue 12/8

11:59 pm-10:48 am

1 stop7h 49m

$500

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Thu 12/3

6:06 pm-12:39 pm

2 stops21h 33m

Seattle/Tacoma Intl

Sun 12/6

11:59 pm-10:48 am

1 stop7h 49m

$501

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Wed 12/2

6:06 pm-11:55 pm

1 stop8h 49m

Seattle/Tacoma Intl

Sun 12/6

3:21 pm-10:48 am

2 stops16h 27m

$516

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Wed 11/25

6:08 pm-11:57 pm

1 stop8h 49m

Seattle/Tacoma Intl

Fri 12/4

6:00 am-5:10 pm

1 stop8h 10m

$532

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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?

Alaska 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	$2,230
Fastest flight time	9h 33m
Direct flights	None

The best one-way flight to Seattle from Key West in the past 72 hours is $2,230. The best round-trip flight deal from Key West to Seattle found on momondo in the last 72 hours is $429.

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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Renton

Kent

Olympia

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Cle Elum

Marysville

Lacey

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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.