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Cheap flights from Seattle to Key West from $239

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Key West

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
10:48 pm - 1:54 pmSEA  Seattle/Tacoma Intl-EYW Key West
12h 06m1 stop Newark
United Airlines Logo
4:10 pm - 11:59 pmEYW  Key West-SEA Seattle/Tacoma Intl
10h 49m1 stop Chicago O'Hare Intl
$399United Airlines
Sat, Oct 24 - Fri, Oct 30
American Airlines Logo
6:00 am - 6:49 pmSEA  Seattle/Tacoma Intl-EYW Key West
9h 49m1 stop Charlotte Douglas
American Airlines Logo
5:28 pm - 11:59 pmEYW  Key West-SEA Seattle/Tacoma Intl
9h 31m1 stop Miami
$438American Airlines
Wed, Oct 21 - Wed, Oct 28
United Airlines Logo
10:45 pm - 2:08 pmSEA  Seattle/Tacoma Intl-EYW Key West
12h 23m1 stop Newark
United Airlines Logo
3:55 pm - 10:39 pmEYW  Key West-SEA Seattle/Tacoma Intl
9h 44m1 stop Chicago O'Hare Intl
$452United Airlines
Fri, Jan 8 - Fri, Jan 15
United Airlines Logo
10:45 pm - 2:08 pmSEA  Seattle/Tacoma Intl-EYW Key West
12h 23m1 stop Newark
United Airlines Logo
3:55 pm - 10:39 pmEYW  Key West-SEA Seattle/Tacoma Intl
9h 44m1 stop Chicago O'Hare Intl
$489United Airlines
Sat, Jan 30 - Wed, Feb 3
American Airlines Logo
6:00 am - 5:19 pmSEA  Seattle/Tacoma Intl-EYW Key West
8h 19m1 stop Chicago O'Hare Intl
American Airlines Logo
1:52 pm - 10:31 pmEYW  Key West-SEA Seattle/Tacoma Intl
11h 39m1 stop Charlotte Douglas
$492American Airlines
Fri, Jan 8 - Sat, Jan 16
American Airlines Logo
5:10 am - 4:55 pmSEA  Seattle/Tacoma Intl-EYW Key West
8h 45m1 stop Dallas/Fort Worth
American Airlines Logo
2:26 pm - 8:03 pmEYW  Key West-SEA Seattle/Tacoma Intl
8h 37m1 stop Dallas/Fort Worth
$492American Airlines
Thu, Dec 10 - Tue, Dec 15
United Airlines Logo
11:44 pm - 11:41 amSEA  Seattle/Tacoma Intl-EYW Key West
8h 57m1 stop Chicago O'Hare Intl
United Airlines Logo
4:04 pm - 10:32 pmEYW  Key West-SEA Seattle/Tacoma Intl
9h 28m1 stop Chicago O'Hare Intl
$509United Airlines
Thu, Dec 17 - Fri, Dec 25
Delta Logo
6:00 am - 7:43 pmSEA  Seattle/Tacoma Intl-EYW Key West
10h 43m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 pm - 10:26 amEYW  Key West-SEA Seattle/Tacoma Intl
19h 26m1 stop Atlanta Hartsfield-Jackson
$587Delta
Tue, Mar 2 - Fri, Mar 5
Delta Logo
6:00 am - 7:43 pmSEA  Seattle/Tacoma Intl-EYW Key West
10h 43m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 pm - 10:26 amEYW  Key West-SEA Seattle/Tacoma Intl
19h 26m1 stop Atlanta Hartsfield-Jackson
$587Delta
Wed, Mar 3 - Fri, Mar 5
Delta Logo
6:00 am - 7:43 pmSEA  Seattle/Tacoma Intl-EYW Key West
10h 43m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 pm - 12:09 amEYW  Key West-SEA Seattle/Tacoma Intl
9h 09m1 stop Atlanta Hartsfield-Jackson
$625Delta
Tue, Mar 2 - Wed, Mar 3

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United Airlines flights from Seattle to Key West

Our best United Airlines deals on Seattle to Key West flight tickets
United Airlines
Oct 24
SEA10:48 pmSeattle/Tacoma Intl
12h 06m
1 stop
EYW1:54 pmKey West
Oct 30
EYW4:10 pmKey West
10h 49m
1 stop
SEA11:59 pmSeattle/Tacoma Intl
$399
United Airlines
Jan 8
SEA10:45 pmSeattle/Tacoma Intl
12h 23m
1 stop
EYW2:08 pmKey West
Jan 15
EYW3:55 pmKey West
9h 44m
1 stop
SEA10:39 pmSeattle/Tacoma Intl
$452
United Airlines
Jan 30
SEA10:45 pmSeattle/Tacoma Intl
12h 23m
1 stop
EYW2:08 pmKey West
Feb 3
EYW3:55 pmKey West
9h 44m
1 stop
SEA10:39 pmSeattle/Tacoma Intl
$489

American Airlines flights from Seattle to Key West

Our best American Airlines deals on Seattle to Key West flight tickets
American Airlines
Oct 21
SEA6:00 amSeattle/Tacoma Intl
9h 49m
1 stop
EYW6:49 pmKey West
Oct 28
EYW5:28 pmKey West
9h 31m
1 stop
SEA11:59 pmSeattle/Tacoma Intl
$438
American Airlines
Oct 16
SEA8:39 pmSeattle/Tacoma Intl
10h 15m
1 stop
EYW9:54 amKey West
Oct 24
EYW4:45 pmKey West
9h 25m
1 stop
SEA11:10 pmSeattle/Tacoma Intl
$492
American Airlines
Oct 24
SEA6:00 amSeattle/Tacoma Intl
9h 49m
1 stop
EYW6:49 pmKey West
Oct 30
EYW2:34 pmKey West
10h 23m
1 stop
SEA9:57 pmSeattle/Tacoma Intl
$493

momondo Fare Finder

 
Use the filters below to find and compare flights from Seattle to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleKey West

SEA Seattle/Tacoma Intl - EYW Key West

SEAEYW

Seattle/Tacoma Intl

Sat 10/24

10:48 pm-1:54 pm

1 stop12h 06m

Key West

Fri 10/30

4:10 pm-11:59 pm

1 stop10h 49m

$399

SeattleKey West

SEA Seattle/Tacoma Intl - EYW Key West

SEAEYW

Seattle/Tacoma Intl

Wed 10/21

6:00 am-6:49 pm

1 stop9h 49m

Key West

Wed 10/28

5:28 pm-11:59 pm

1 stop9h 31m

$438

SeattleKey West

SEA Seattle/Tacoma Intl - EYW Key West

SEAEYW

Seattle/Tacoma Intl

Fri 1/8

10:45 pm-2:08 pm

1 stop12h 23m

Key West

Fri 1/15

3:55 pm-10:39 pm

1 stop9h 44m

$452

SeattleKey West

SEA Seattle/Tacoma Intl - EYW Key West

SEAEYW

Seattle/Tacoma Intl

Sat 1/30

10:45 pm-2:08 pm

1 stop12h 23m

Key West

Wed 2/3

3:55 pm-10:39 pm

1 stop9h 44m

$489

SeattleKey West

SEA Seattle/Tacoma Intl - EYW Key West

SEAEYW

Seattle/Tacoma Intl

Fri 1/8

6:00 am-5:19 pm

1 stop8h 19m

Key West

Sat 1/16

1:52 pm-10:31 pm

1 stop11h 39m

$492
Quickest round-trip

SeattleKey West

SEA Seattle/Tacoma Intl - EYW Key West

SEAEYW

Seattle/Tacoma Intl

Thu 12/10

5:10 am-4:55 pm

1 stop8h 45m

Key West

Tue 12/15

2:26 pm-8:03 pm

1 stop8h 37m

$492

SeattleKey West

SEA Seattle/Tacoma Intl - EYW Key West

SEAEYW

Seattle/Tacoma Intl

Thu 12/17

11:44 pm-11:41 am

1 stop8h 57m

Key West

Fri 12/25

4:04 pm-10:32 pm

1 stop9h 28m

$509

SeattleKey West

SEA Seattle/Tacoma Intl - EYW Key West

SEAEYW

Seattle/Tacoma Intl

Tue 3/2

6:00 am-7:43 pm

1 stop10h 43m

Key West

Fri 3/5

6:00 pm-10:26 am

1 stop19h 26m

$587

SeattleKey West

SEA Seattle/Tacoma Intl - EYW Key West

SEAEYW

Seattle/Tacoma Intl

Wed 3/3

6:00 am-7:43 pm

1 stop10h 43m

Key West

Fri 3/5

6:00 pm-10:26 am

1 stop19h 26m

$587

SeattleKey West

SEA Seattle/Tacoma Intl - EYW Key West

SEAEYW

Seattle/Tacoma Intl

Tue 3/2

6:00 am-7:43 pm

1 stop10h 43m

Key West

Wed 3/3

6:00 pm-12:09 am

1 stop9h 09m

$625

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Key West from

How to get the cheapest flight ticket from Seattle to Key West

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 typical price of a round-trip flight between Seattle and Key West?

Prices are currently low for flights on this route.

Typical prices usually range from $574 to $646.
The lowest price recently found on this route was $399.

What is the cheapest month to fly to Key West?

In general, July is the cheapest month to fly from Seattle to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $388. If you are unable to visit Key West during the month of July, then departing from Seattle during the month February is also very affordable. Most momondo users find prices during this month for around $476.

Can stopping save me money on Seattle to Key West flights?

You could potentially save up to 28% on your flight if you consider stops on a Seattle to Key West flight.

How have Seattle to Key West flight prices changed over time?

When to book flights from Seattle to Key West

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Key West according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Key West (SEA to EYW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Key West

Best Price Found

$239

Fastest flight time

7h 44m

Direct flights

None
The best one-way flight to Key West from Seattle in the past 72 hours is $239. The best round-trip flight deal from Seattle to Key West found on momondo in the last 72 hours is $399.
The fastest flight from Seattle to Key West takes 7h 44m
There are no direct flights from Seattle to Key West. There are no popular flight routes from Seattle to Key West.
Search flight deals

Frequently asked questions about flying from Seattle to Key West

  • How far is Seattle/Tacoma Intl to Key West by plane?

    The distance between Seattle/Tacoma Intl and Key West is about 2719.2 mi. By plane, this route typically takes 7h 44m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Key West Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Key West Airport refresh daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Key West Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Key West Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Key West Airport.

  • What documentation or ID do you need to fly to Key West Airport?

    The travel and health documents required for your trip to Key West Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Key West Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Seattle to Key West?

Best airlines flying from Seattle to Key West

Compare and see reviews for airlines that fly from Seattle to Key West with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $348Free CancellationRating
7.1
12,045 reviews
Search American Airlines flights
DeltaPriceFrom $588Free CancellationRating
7.8
8,554 reviews
Search Delta flights

Traveling to a place near Key West?

Book flights to Key West if you plan to visit one of these locations
Big Pine Key
Little Torch Key

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Key West?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Key West from Seattle.

Can I find flights from Seattle to Key West with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Seattle to Key West flights to just show those with flexible booking policies.

How can momondo help me find flights from Seattle to Key West?

momondo helps you find the best flight between Seattle and Key West by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Key West right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Key West, momondo offers a useful price alert feature which will track prices for flights to Key West from Seattle and alert you when they change.

An easier way to manage your Key West trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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