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.

$323 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.

7:40 am - 2:19 pmEYW Key West-SEA Seattle/Tacoma Intl

9h 39m1 stop Atlanta Hartsfield-Jackson

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

9h 39m1 stop Atlanta Hartsfield-Jackson

$575Delta

Sat, Oct 24 - Tue, Oct 27

1:43 pm - 12:10 amEYW Key West-SEA Seattle/Tacoma Intl

13h 27m2 stops Miami Dallas/Fort Worth

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

8h 54m1 stop Dallas/Fort Worth

$639American Airlines

Sat, Oct 24 - Wed, Oct 28

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

8h 41m1 stop Atlanta Hartsfield-Jackson

12:30 pm - 10:47 amSEA Seattle/Tacoma Intl-EYW Key West

19h 17m2 stops Los Angeles Atlanta Hartsfield-Jackson

$641Delta

Sat, Oct 24 - Wed, Oct 28

7:40 am - 2:19 pmEYW Key West-SEA Seattle/Tacoma Intl

9h 39m1 stop Atlanta Hartsfield-Jackson

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

9h 54m1 stop Atlanta Hartsfield-Jackson

$644Delta

Sat, Oct 24 - Thu, Oct 29

2:00 pm - 10:03 pmEYW Key West-SEA Seattle/Tacoma Intl

11h 03m1 stop Atlanta Hartsfield-Jackson

12:30 pm - 10:47 amSEA Seattle/Tacoma Intl-EYW Key West

19h 17m2 stops Los Angeles Atlanta Hartsfield-Jackson

$645Delta

Sat, Oct 24 - Mon, Oct 26

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

$703American Airlines

Sat, Oct 24 - Wed, Oct 28

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

10h 23m1 stop Dallas/Fort Worth

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

13h 33m2 stops Dallas/Fort Worth Miami

$805American Airlines

Sat, Oct 24 - Sat, Oct 24

2:15 pm - 10:36 pmEYW Key West-SEA Seattle/Tacoma Intl

11h 21m1 stop Newark

12:20 pm - 1:54 pmSEA Seattle/Tacoma Intl-EYW Key West

22h 34m3 stops Los Angeles Denver Intl Newark

$840United Airlines

Sat, Oct 24 - Tue, Oct 27

2:15 pm - 10:36 pmEYW Key West-SEA Seattle/Tacoma Intl

11h 21m1 stop Newark

12:20 pm - 1:54 pmSEA Seattle/Tacoma Intl-EYW Key West

22h 34m3 stops Los Angeles Denver Intl Newark

$865United Airlines

Sat, Oct 24 - Thu, Oct 29

4:20 pm - 10:56 pmEYW Key West-SEA Seattle/Tacoma Intl

9h 36m1 stop Chicago O'Hare Intl

2:30 pm - 1:54 pmSEA Seattle/Tacoma Intl-EYW Key West

20h 24m3 stops Chicago O'Hare Intl Madison Truax Field Newark

$891United Airlines

Sat, Oct 24 - Sun, Oct 25

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Delta flights from Key West to Seattle

Our best Delta deals on Key West to Seattle flight tickets

Delta

Oct 24

EYW7:40 amKey West

9h 39m

1 stop

SEA2:19 pmSeattle/Tacoma Intl

Oct 28

SEA11:59 pmSeattle/Tacoma Intl

7h 48m

1 stop

EYW10:47 amKey West

$575

Delta

Oct 24

EYW7:40 amKey West

9h 39m

1 stop

SEA2:19 pmSeattle/Tacoma Intl

Oct 27

SEA2:30 pmSeattle/Tacoma Intl

17h 17m

2 stops

EYW10:47 amKey West

$641

Delta

Oct 24

EYW7:40 amKey West

9h 39m

1 stop

SEA2:19 pmSeattle/Tacoma Intl

Oct 29

SEA11:59 pmSeattle/Tacoma Intl

9h 54m

1 stop

EYW12:53 pmKey West

$644

American Airlines flights from Key West to Seattle

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

American Airlines

Oct 22

EYW4:45 pmKey West

9h 25m

1 stop

SEA11:10 pmSeattle/Tacoma Intl

Oct 27

SEA9:42 pmSeattle/Tacoma Intl

12h 21m

2 stops

EYW1:03 pmKey West

$708

American Airlines

Oct 22

EYW10:24 amKey West

12h 51m

2 stops

SEA8:15 pmSeattle/Tacoma Intl

Oct 27

SEA5:00 amSeattle/Tacoma Intl

11h 33m

2 stops

EYW7:33 pmKey West

$779

American Airlines

Oct 24

EYW2:34 pmKey West

10h 23m

1 stop

SEA9:57 pmSeattle/Tacoma Intl

Oct 24

SEA12:25 amSeattle/Tacoma Intl

13h 33m

2 stops

EYW4:58 pmKey West

$805

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Sat 10/24

7:40 am-2:19 pm

1 stop9h 39m

Seattle/Tacoma Intl

Tue 10/27

7:22 am-8:01 pm

1 stop9h 39m

$575

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Sat 10/24

1:43 pm-12:10 am

2 stops13h 27m

Seattle/Tacoma Intl

Wed 10/28

5:00 am-4:54 pm

1 stop8h 54m

$639

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Sat 10/24

6:11 pm-11:52 pm

1 stop8h 41m

Seattle/Tacoma Intl

Wed 10/28

12:30 pm-10:47 am

2 stops19h 17m

$641

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Sat 10/24

7:40 am-2:19 pm

1 stop9h 39m

Seattle/Tacoma Intl

Thu 10/29

11:59 pm-12:53 pm

1 stop9h 54m

$644

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Sat 10/24

2:00 pm-10:03 pm

1 stop11h 03m

Seattle/Tacoma Intl

Mon 10/26

12:30 pm-10:47 am

2 stops19h 17m

$645

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Sat 10/24

1:43 pm-12:10 am

2 stops13h 27m

Seattle/Tacoma Intl

Wed 10/28

5:00 am-7:33 pm

2 stops11h 33m

$703

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Sat 10/24

2:34 pm-9:57 pm

1 stop10h 23m

Seattle/Tacoma Intl

Sat 10/24

12:25 am-4:58 pm

2 stops13h 33m

$805

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Sat 10/24

2:15 pm-10:36 pm

1 stop11h 21m

Seattle/Tacoma Intl

Tue 10/27

12:20 pm-1:54 pm

3 stops22h 34m

$840

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Sat 10/24

2:15 pm-10:36 pm

1 stop11h 21m

Seattle/Tacoma Intl

Thu 10/29

12:20 pm-1:54 pm

3 stops22h 34m

$865

Key WestSeattle

EYW Key West - SEA Seattle/Tacoma Intl

EYWSEA

Key West

Sat 10/24

4:20 pm-10:56 pm

1 stop9h 36m

Seattle/Tacoma Intl

Sun 10/25

2:30 pm-1:54 pm

3 stops20h 24m

$891

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	$323
Fastest flight time	10h 40m
Direct flights	None

The best one-way flight to Seattle from Key West in the past 72 hours is $323. 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 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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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.