Cheap Flights from Seattle (SEA) to Key West (EYW)

View AU$445 flight on Fri, 9 May 2025Opens in a new window

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Cheap Flights from Seattle (SEA) to Key West (EYW)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri., 9 May - Fri., 16 May
SEA
Seattle
EYW
Key West
AU$889 Return, found 4 days ago
AU$889
Return
found 4 days ago
Select American Airlines flight, departing Fri., 9 May from Seattle to Key West, returning Fri., 16 May, priced at AU$889 found 4 days ago
American Airlines
Fri., 9 May - Fri., 16 May
SEA
Seattle
EYW
Key West
AU$897 Return, found 4 days ago
AU$897
Return
found 4 days ago
Select American Airlines flight, departing Fri., 9 May from Seattle to Key West, returning Fri., 16 May, priced at AU$897 found 4 days ago
American Airlines
Fri., 9 May - Fri., 16 May
SEA
Seattle
EYW
Key West
AU$986 Return, found 4 days ago
AU$986
Return
found 4 days ago
Select American Airlines flight, departing Fri., 9 May from Seattle to Key West, returning Fri., 16 May, priced at AU$986 found 4 days ago
American Airlines
Fri., 9 May - Fri., 16 May
SEA
Seattle
EYW
Key West
AU$994 Return, found 4 days ago
AU$994
Return
found 4 days ago
Select American Airlines flight, departing Fri., 9 May from Seattle to Key West, returning Fri., 16 May, priced at AU$994 found 4 days ago
American Airlines
Fri., 9 May - Fri., 16 May
SEA
Seattle
EYW
Key West
AU$1,026 Return, found 4 days ago
AU$1,026
Return
found 4 days ago
Select American Airlines flight, departing Fri., 9 May from Seattle to Key West, returning Fri., 16 May, priced at AU$1,026 found 4 days ago
American Airlines
Fri., 9 May - Fri., 16 May
SEA
Seattle
EYW
Key West
AU$1,048 Return, found 4 days ago
AU$1,048
Return
found 4 days ago
Select American Airlines flight, departing Fri., 9 May from Seattle to Key West, returning Fri., 16 May, priced at AU$1,048 found 4 days ago
American Airlines
Fri., 9 May - Fri., 16 May
SEA
Seattle
EYW
Key West
AU$1,056 Return, found 4 days ago
AU$1,056
Return
found 4 days ago
Select American Airlines flight, departing Fri., 9 May from Seattle to Key West, returning Fri., 16 May, priced at AU$1,056 found 4 days ago
American Airlines
Fri., 9 May - Fri., 16 May
SEA
Seattle
EYW
Key West
AU$1,083 Return, found 4 days ago
AU$1,083
Return
found 4 days ago
Select American Airlines flight, departing Fri., 9 May from Seattle to Key West, returning Fri., 16 May, priced at AU$1,083 found 4 days ago
Delta
Fri., 9 May - Fri., 16 May
SEA
Seattle
EYW
Key West
AU$1,123 Return, found 4 days ago
AU$1,123
Return
found 4 days ago
Select Delta flight, departing Fri., 9 May from Seattle to Key West, returning Fri., 16 May, priced at AU$1,123 found 4 days ago
United
Fri., 9 May - Fri., 16 May
SEA
Seattle
EYW
Key West
AU$1,175 Return, found 4 days ago
AU$1,175
Return
found 4 days ago
Select United flight, departing Fri., 9 May from Seattle to Key West, returning Fri., 16 May, priced at AU$1,175 found 4 days ago
Flight from Seattle to Key West route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Key West Intl.
Return price
AU$888
Distance
4347 km

Your quick guide to flights from Seattle to Key West

Pick up great flights from Seattle to Key West

With Expedia, you have your pick of flights a day with 20 airlines covering flights from Seattle to Key West. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Seattle to Key West that take around hours.

Find cheap flights from Seattle to Key West

From the great flight deals with prices currently ranging from AU$889 to AU$1,175, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Seattle to Key West around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Key West is normally in May.

Reasons to book your flight from Seattle to Key West with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Seattle to Key West across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Key West right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Frequently asked questions

How much is a flight from SEA to Key West Intl. Airport?
Round-trip journeys between Seattle - Tacoma Intl. Airport (SEA) and Key West Intl. Airport (EYW) start from AU$889. This is based on fares advertised within the last 7 days on Expedia for flights departing within the next year — make your booking ASAP so you don’t miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SEA to Key West Intl. Airport?
This can differ between air carriers, as each one has its own terms and conditions. Visit the Customer Service Portal, where there are easy instructions on how to cancel your flight online.
How do I find cheap flights from Seattle - Tacoma Intl. Airport (SEA) to EYW that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for Sea-Tac Airport to EYW flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to Key West Intl. Airport (EYW)?
You’ll have 4 400 kilometres to cover on the long-haul SeaTac to Key West route. Wear comfortable clothes and consider taking a neck pillow with you.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to Key West Intl. Airport (EYW)?
If you want to fly straight from SEA to EYW, you’ll need to book a flight with one or more stops. Unfortunately, there aren’t any airlines that fly directly between these airports.
Are Sea-Tac Airport to EYW flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from SEA to Key West Intl. Airport (EYW) can be hit-or-miss. You may be able to score a bargain, but you could also miss out completely! If you’d rather play it safe and start your trip planning early, Expedia compares flight deals up to 12 months in advance. Just remember that not all airlines advertise their prices that far in advance. Our suggestion? Check back often as updates are made regularly.

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