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Cheap flights from Seattle to Key West from $231

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Key West departing on 1/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Seattle to Key West

Cheap round-trip flights

These are some of the best round-trip flight deals from Seattle to Key West that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Seattle to Key West.

Cheap last minute flights

Planning a quick getaway from Seattle to Key West? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Key West, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Seattle to Key West

Find recent round-trip train or bus tickets from Seattle to Key West.

All round-trip flight deals to Key West

The cheapest plane tickets to Key West found on KAYAK recently.
7:20 am - 6:46 pmSEA-EYW
8h 26m1 stop
2:41 pm - 11:14 pmEYW-SEA
11h 33m1 stop
$283American Airlines
Find Deal
Wed, Feb 26 - Wed, Mar 5
12:43 am - 5:32 pmSEA-EYW
13h 49m2 stops
2:41 pm - 11:14 pmEYW-SEA
11h 33m1 stop
$288American Airlines
Find Deal
Tue, Feb 25 - Wed, Mar 5
12:43 am - 5:32 pmSEA-EYW
13h 49m2 stops
12:55 pm - 9:21 pmEYW-SEA
11h 26m2 stops
$293American Airlines
Find Deal
Tue, Feb 25 - Wed, Mar 5
11:30 pm - 11:46 amSEA-EYW
9h 16m1 stop
2:52 pm - 9:35 pmEYW-SEA
9h 43m1 stop
$308American Airlines
Find Deal
Wed, Apr 30 - Wed, May 7
10:35 am - 11:49 amSEA-EYW
22h 14m2 stops
6:00 pm - 11:59 pmEYW-SEA
8h 59m1 stop
$397Delta
Find Deal
Tue, Mar 11 - Wed, Mar 19
11:15 pm - 11:49 amSEA-EYW
9h 34m1 stop
6:00 pm - 11:59 pmEYW-SEA
8h 59m1 stop
$399Delta
Find Deal
Mon, Mar 10 - Wed, Mar 19
10:35 am - 11:49 amSEA-EYW
22h 14m2 stops
6:00 pm - 11:59 pmEYW-SEA
8h 59m1 stop
$422Delta
Find Deal
Tue, Mar 11 - Tue, Mar 18
10:50 pm - 12:47 pmSEA-EYW
10h 57m1 stop
10:55 am - 12:53 pmEYW-SEA
28h 58m2 stops
$424United Airlines
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Mon, Jan 6 - Mon, Jan 13
11:51 pm - 11:30 amSEA-EYW
8h 39m1 stop
10:55 am - 7:08 pmEYW-SEA
35h 13m3 stops
$429United Airlines
Find Deal
Fri, Jan 3 - Fri, Jan 10
11:20 pm - 10:10 amSEA-EYW
31h 50m2 stops
12:12 pm - 8:19 pmEYW-SEA
11h 07m1 stop
$437United Airlines
Find Deal
Tue, Feb 25 - Tue, Mar 4
2:16 pm - 5:06 pmSEA-EYW
23h 50m2 stops
Sat, Jan 4
9:00 am - 6:55 pmSEA-EYW
30h 55m2 stops
$235United Airlines
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Thu, Jan 9
5:22 am - 4:20 pmSEA-EYW
7h 58m1 stop
$245American Airlines
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Fri, Feb 14
11:10 pm - 11:57 amSEA-EYW
9h 47m1 stop
$246American Airlines
Find Deal
Sat, Jan 4
12:45 am - 4:37 pmSEA-EYW
12h 52m2 stops
$250American Airlines
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Wed, Jan 8
7:00 am - 10:10 amSEA-EYW
24h 10m3 stops
$253United Airlines
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Thu, Jan 9
2:16 pm - 4:56 pmSEA-EYW
23h 40m2 stops
Mon, Dec 30
6:10 am - 9:15 amSEA-EYW
24h 05m3 stops
$256United Airlines
Find Deal
Thu, Jan 9
11:59 pm - 9:15 amSEA-EYW
30h 16m2 stops
$261United Airlines
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Sat, Jan 4
12:31 am - 12:52 pmSEA-EYW
9h 21m1 stop
$319American Airlines
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Fri, Jan 3
12:15 am - 12:20 pmSEA-EYW
9h 05m1 stop
2:30 pm - 11:00 pmEYW-SEA
11h 30m1 stop
$966American Airlines
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Sat, Nov 23 - Tue, Nov 26
12:15 am - 12:20 pmSEA-EYW
9h 05m1 stop
1:39 pm - 9:28 pmEYW-SEA
10h 49m2 stops
$971American Airlines
Find Deal
Sat, Nov 23 - Tue, Nov 26
12:15 am - 1:09 pmSEA-EYW
9h 54m2 stops
3:56 pm - 11:00 pmEYW-SEA
10h 04m2 stops
$976American Airlines
Find Deal
Sat, Nov 23 - Tue, Nov 26
7:11 pm - 6:55 pmSEA-EYW
20h 44m3 stops
10:55 am - 7:20 pmEYW-SEA
11h 25m2 stops
$1,068United Airlines
Find Deal
Sun, Nov 24 - Tue, Nov 26

Delta flights from Seattle to Key West

Our best Delta deals on Seattle to Key West flight tickets
Delta
Mar 11
SEA10:35 amSeattle/Tacoma Intl
22h 14m
2 stops
EYW11:49 amKey West
Mar 19
EYW6:00 pmKey West
8h 59m
1 stop
SEA11:59 pmSeattle/Tacoma Intl
Delta
Mar 10
SEA11:15 pmSeattle/Tacoma Intl
9h 34m
1 stop
EYW11:49 amKey West
Mar 19
EYW6:00 pmKey West
8h 59m
1 stop
SEA11:59 pmSeattle/Tacoma Intl
Delta
Mar 11
SEA10:35 amSeattle/Tacoma Intl
22h 14m
2 stops
EYW11:49 amKey West
Mar 18
EYW6:00 pmKey West
8h 59m
1 stop
SEA11:59 pmSeattle/Tacoma Intl

United Airlines flights from Seattle to Key West

Our best United Airlines deals on Seattle to Key West flight tickets
United Airlines
Jan 6
SEA10:50 pmSeattle/Tacoma Intl
10h 57m
1 stop
EYW12:47 pmKey West
Jan 13
EYW10:55 amKey West
28h 58m
2 stops
SEA12:53 pmSeattle/Tacoma Intl
United Airlines
Jan 3
SEA11:51 pmSeattle/Tacoma Intl
8h 39m
1 stop
EYW11:30 amKey West
Jan 10
EYW10:55 amKey West
35h 13m
3 stops
SEA7:08 pmSeattle/Tacoma Intl
United Airlines
Feb 25
SEA11:20 pmSeattle/Tacoma Intl
31h 50m
2 stops
EYW10:10 amKey West
Mar 4
EYW12:12 pmKey West
11h 07m
1 stop
SEA8:19 pmSeattle/Tacoma Intl

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 cheapest month to fly to Key West?

In general, June 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 $656. If you are unable to visit Key West during the month of June, then departing from Seattle during the month August is also very affordable. Most momondo users find prices during this month for around $656.

What is the cheapest day to depart on your flight to Key West?

On average, the least expensive day to fly to Key West from Seattle is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $624. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Key West for around $910.

What is the cheapest time of day to depart on your flight to Key West?

According to our data, the cheapest time of day to fly to Key West is at noon. momondo users have found flights departing from Seattle to Key West at noon for as low as $0. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Key West are more costly in the evening, with an average ticket price of $743. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Key West?

Most flyers found that booking tickets 37 days in advance of their planned departure date is the best time to get cheap flights to Key West. During this timeframe, flight prices are around $725. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from Seattle for as low as $526 on momondo.

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

You could potentially save up to 4% 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?

As of November 2024, prices for Seattle to Key West flights are approximately 41% more expensive when compared to flights at the same time last year.

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

$231

Fastest flight time

7h 22m

Direct flights

None

Airports in Key West

1 airport
The best one-way flight to Key West from Seattle in the past 72 hours is $231. The best round-trip flight deal from Seattle to Key West found on momondo in the last 72 hours is $283.
The fastest flight from Seattle to Key West takes 7h 22m
There are no direct flights from Seattle to Key West. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Key West Airport.
There is 1 airport near Key West: Key West (EYW)

  • 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 22m.

  • 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
United AirlinesPriceFrom $451Free CancellationRating
7.4
9,172 reviews
Search United Airlines flights
DeltaPriceFrom $508Free CancellationRating
8.0
8,755 reviews
Search Delta flights
American AirlinesPriceFrom $525Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

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.


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