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Cheap flights from Seattle to Key West from $209

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.
American Airlines Logo
5:09 am - 4:38 pmSEA  Seattle/Tacoma Intl-EYW Key West
8h 29m1 stop Dallas/Fort Worth
American Airlines Logo
12:12 pm - 8:13 pmEYW  Key West-SEA Seattle/Tacoma Intl
11h 01m1 stop Chicago O'Hare Intl
$449American Airlines
Tue, Jan 5 - Wed, Jan 13
American Airlines Logo
5:09 am - 4:38 pmSEA  Seattle/Tacoma Intl-EYW Key West
8h 29m1 stop Dallas/Fort Worth
American Airlines Logo
12:12 pm - 8:13 pmEYW  Key West-SEA Seattle/Tacoma Intl
11h 01m1 stop Chicago O'Hare Intl
$449American Airlines
Tue, Jan 5 - Wed, Jan 13
Delta Logo
8:00 am - 8:48 pmSEA  Seattle/Tacoma Intl-EYW Key West
9h 48m1 stop Atlanta Hartsfield-Jackson
Delta Logo
5:00 pm - 11:25 pmEYW  Key West-SEA Seattle/Tacoma Intl
9h 25m1 stop Atlanta Hartsfield-Jackson
$449Delta
Tue, Jan 19 - Tue, Jan 26
Delta Logo
11:59 pm - 10:48 amSEA  Seattle/Tacoma Intl-EYW Key West
7h 49m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:06 pm - 11:55 pmEYW  Key West-SEA Seattle/Tacoma Intl
8h 49m1 stop Atlanta Hartsfield-Jackson
$449Delta
Sat, Dec 5 - Fri, Dec 11
Delta Logo
10:40 pm - 10:48 amSEA  Seattle/Tacoma Intl-EYW Key West
9h 08m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:06 pm - 11:55 pmEYW  Key West-SEA Seattle/Tacoma Intl
8h 49m1 stop Atlanta Hartsfield-Jackson
$449Delta
Sat, Dec 5 - Thu, Dec 10
American Airlines Logo
6:00 am - 4:52 pmSEA  Seattle/Tacoma Intl-EYW Key West
7h 52m1 stop Dallas/Fort Worth
American Airlines Logo
12:12 pm - 8:13 pmEYW  Key West-SEA Seattle/Tacoma Intl
11h 01m1 stop Chicago O'Hare Intl
$459American Airlines
Sat, Feb 6 - Wed, Feb 10
American Airlines Logo
11:29 pm - 11:27 amSEA  Seattle/Tacoma Intl-EYW Key West
8h 58m1 stop Chicago O'Hare Intl
American Airlines Logo
3:16 pm - 9:55 pmEYW  Key West-SEA Seattle/Tacoma Intl
9h 39m1 stop Charlotte Douglas
$459American Airlines
Mon, Mar 1 - Wed, Mar 10
United Airlines Logo
11:59 pm - 11:11 amSEA  Seattle/Tacoma Intl-EYW Key West
8h 12m1 stop Chicago O'Hare Intl
United Airlines Logo
4:45 pm - 10:58 pmEYW  Key West-SEA Seattle/Tacoma Intl
9h 13m1 stop Houston George Bush Intcntl
$487United Airlines
Thu, Mar 4 - Mon, Mar 8
United Airlines Logo
10:49 pm - 2:05 pmSEA  Seattle/Tacoma Intl-EYW Key West
12h 16m1 stop Newark
United Airlines Logo
1:19 pm - 9:43 pmEYW  Key West-SEA Seattle/Tacoma Intl
11h 24m1 stop Newark
$559United Airlines
Sat, Feb 27 - Wed, Mar 3
United Airlines Logo
11:59 pm - 11:11 amSEA  Seattle/Tacoma Intl-EYW Key West
8h 12m1 stop Chicago O'Hare Intl
United Airlines Logo
4:45 pm - 10:58 pmEYW  Key West-SEA Seattle/Tacoma Intl
9h 13m1 stop Houston George Bush Intcntl
$603United Airlines
Fri, Mar 12 - Sat, Mar 20

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Delta flights from Seattle to Key West

Our best Delta deals on Seattle to Key West flight tickets
Delta
Jan 19
SEA8:00 amSeattle/Tacoma Intl
9h 48m
1 stop
EYW8:48 pmKey West
Jan 26
EYW5:00 pmKey West
9h 25m
1 stop
SEA11:25 pmSeattle/Tacoma Intl
$449
Delta
Dec 4
SEA8:30 amSeattle/Tacoma Intl
8h 31m
1 stop
EYW8:01 pmKey West
Dec 11
EYW6:06 pmKey West
8h 49m
1 stop
SEA11:55 pmSeattle/Tacoma Intl
$474
Delta
Dec 5
SEA8:30 amSeattle/Tacoma Intl
8h 31m
1 stop
EYW8:01 pmKey West
Dec 11
EYW6:06 pmKey West
21h 33m
2 stops
SEA12:39 pmSeattle/Tacoma Intl
$547

United Airlines flights from Seattle to Key West

Our best United Airlines deals on Seattle to Key West flight tickets
United Airlines
Mar 4
SEA11:59 pmSeattle/Tacoma Intl
8h 12m
1 stop
EYW11:11 amKey West
Mar 8
EYW4:45 pmKey West
9h 13m
1 stop
SEA10:58 pmSeattle/Tacoma Intl
$487
United Airlines
Feb 27
SEA10:49 pmSeattle/Tacoma Intl
12h 16m
1 stop
EYW2:05 pmKey West
Mar 3
EYW1:19 pmKey West
11h 24m
1 stop
SEA9:43 pmSeattle/Tacoma Intl
$559
United Airlines
Mar 12
SEA11:59 pmSeattle/Tacoma Intl
8h 12m
1 stop
EYW11:11 amKey West
Mar 20
EYW4:45 pmKey West
9h 13m
1 stop
SEA10:58 pmSeattle/Tacoma Intl
$603

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

Tue 1/5

5:09 am-4:38 pm

1 stop8h 29m

Key West

Wed 1/13

12:12 pm-8:13 pm

1 stop11h 01m

$449

SeattleKey West

SEA Seattle/Tacoma Intl - EYW Key West

SEAEYW

Seattle/Tacoma Intl

Tue 1/5

5:09 am-4:38 pm

1 stop8h 29m

Key West

Wed 1/13

12:12 pm-8:13 pm

1 stop11h 01m

$449

SeattleKey West

SEA Seattle/Tacoma Intl - EYW Key West

SEAEYW

Seattle/Tacoma Intl

Tue 1/19

8:00 am-8:48 pm

1 stop9h 48m

Key West

Tue 1/26

5:00 pm-11:25 pm

1 stop9h 25m

$449
Quickest round-trip

SeattleKey West

SEA Seattle/Tacoma Intl - EYW Key West

SEAEYW

Seattle/Tacoma Intl

Sat 12/5

11:59 pm-10:48 am

1 stop7h 49m

Key West

Fri 12/11

6:06 pm-11:55 pm

1 stop8h 49m

$449

SeattleKey West

SEA Seattle/Tacoma Intl - EYW Key West

SEAEYW

Seattle/Tacoma Intl

Sat 12/5

10:40 pm-10:48 am

1 stop9h 08m

Key West

Thu 12/10

6:06 pm-11:55 pm

1 stop8h 49m

$449

SeattleKey West

SEA Seattle/Tacoma Intl - EYW Key West

SEAEYW

Seattle/Tacoma Intl

Sat 2/6

6:00 am-4:52 pm

1 stop7h 52m

Key West

Wed 2/10

12:12 pm-8:13 pm

1 stop11h 01m

$459

SeattleKey West

SEA Seattle/Tacoma Intl - EYW Key West

SEAEYW

Seattle/Tacoma Intl

Mon 3/1

11:29 pm-11:27 am

1 stop8h 58m

Key West

Wed 3/10

3:16 pm-9:55 pm

1 stop9h 39m

$459

SeattleKey West

SEA Seattle/Tacoma Intl - EYW Key West

SEAEYW

Seattle/Tacoma Intl

Thu 3/4

11:59 pm-11:11 am

1 stop8h 12m

Key West

Mon 3/8

4:45 pm-10:58 pm

1 stop9h 13m

$487

SeattleKey West

SEA Seattle/Tacoma Intl - EYW Key West

SEAEYW

Seattle/Tacoma Intl

Sat 2/27

10:49 pm-2:05 pm

1 stop12h 16m

Key West

Wed 3/3

1:19 pm-9:43 pm

1 stop11h 24m

$559

SeattleKey West

SEA Seattle/Tacoma Intl - EYW Key West

SEAEYW

Seattle/Tacoma Intl

Fri 3/12

11:59 pm-11:11 am

1 stop8h 12m

Key West

Sat 3/20

4:45 pm-10:58 pm

1 stop9h 13m

$603

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 $481 to $926.
The lowest price recently found on this route was $449.

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 15% 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

$209

Fastest flight time

8h 10m

Direct flights

None
The best one-way flight to Key West from Seattle in the past 72 hours is $209. The best round-trip flight deal from Seattle to Key West found on momondo in the last 72 hours is $449.
The fastest flight from Seattle to Key West takes 8h 10m
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 8h 10m.

  • 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 $384Free CancellationRating
7.0
12,224 reviews
Search American Airlines flights
DeltaPriceFrom $458Free CancellationRating
7.8
8,700 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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