$232 Cheap Flights from St. Thomas (STT) to Key West (EYW)

View $232 flight on Sat, Feb 7, 2026Opens in a new window

Popular airlines from Cyril E. King Airport (STT) to Key West Intl. Airport (EYW)

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Cheap Flights from St. Thomas to Key West (STT-EYW)

Prices were available within the past 7 days and start at $232 for one-way flights and $479 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, Feb 6 - Tue, Feb 10
STT
St. Thomas
EYW
Key West
$479 Roundtrip, found 3 days ago
$479
Roundtrip
found 3 days ago
Select American Airlines flight, departing Fri, Feb 6 from St. Thomas to Key West, returning Tue, Feb 10, priced at $479 found 3 days ago
American Airlines
Fri, Mar 13 - Wed, Mar 18
STT
St. Thomas
EYW
Key West
$527 Roundtrip, found 1 day ago
$527
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Mar 13 from St. Thomas to Key West, returning Wed, Mar 18, priced at $527 found 1 day ago
American Airlines
Fri, Mar 13 - Wed, Mar 18
STT
St. Thomas
EYW
Key West
$532 Roundtrip, found 1 day ago
$532
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Mar 13 from St. Thomas to Key West, returning Wed, Mar 18, priced at $532 found 1 day ago
American Airlines
Mon, Feb 2 - Mon, Feb 9
STT
St. Thomas
EYW
Key West
$541 Roundtrip, found 3 days ago
$541
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, Feb 2 from St. Thomas to Key West, returning Mon, Feb 9, priced at $541 found 3 days ago
American Airlines
Mon, Feb 16 - Tue, Feb 17
STT
St. Thomas
EYW
Key West
$557 Roundtrip, found 2 days ago
$557
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Feb 16 from St. Thomas to Key West, returning Tue, Feb 17, priced at $557 found 2 days ago
American Airlines
Fri, Mar 13 - Wed, Mar 18
STT
St. Thomas
EYW
Key West
$571 Roundtrip, found 1 day ago
$571
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Mar 13 from St. Thomas to Key West, returning Wed, Mar 18, priced at $571 found 1 day ago
American Airlines
Fri, Mar 13 - Wed, Mar 18
STT
St. Thomas
EYW
Key West
$575 Roundtrip, found 1 day ago
$575
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Mar 13 from St. Thomas to Key West, returning Wed, Mar 18, priced at $575 found 1 day ago
American Airlines
Fri, Mar 13 - Wed, Mar 18
STT
St. Thomas
EYW
Key West
$576 Roundtrip, found 1 day ago
$576
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Mar 13 from St. Thomas to Key West, returning Wed, Mar 18, priced at $576 found 1 day ago
American Airlines
Fri, Feb 6 - Tue, Feb 10
STT
St. Thomas
EYW
Key West
$589 Roundtrip, found 3 days ago
$589
Roundtrip
found 3 days ago
Select American Airlines flight, departing Fri, Feb 6 from St. Thomas to Key West, returning Tue, Feb 10, priced at $589 found 3 days ago
Delta
Fri, Nov 7 - Mon, Nov 10
STT
St. Thomas
EYW
Key West
$3,655 Roundtrip, found 6 days ago
$3,655
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, Nov 7 from St. Thomas to Key West, returning Mon, Nov 10, priced at $3,655 found 6 days ago

Frequently asked questions

How much does a flight from Cyril E. King Airport (STT) to Key West Intl. Airport (EYW) cost?
Lock in a cheap one-way flight from $232 or cheap return flight from $479 from Cyril E. King Airport (STT) to Key West Intl. Airport (EYW) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Cyril E. King Airport (STT) to Key West Intl. Airport (EYW)?
February is the least expensive month to fly from STT to EYW. Avoiding peak travel times is often the key to scoring lower fares.
What is the cheapest airline that flies from Cyril E. King Airport (STT) to Key West Intl. Airport (EYW)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll take you from STT to EYW. Then, sort your results by "Price (lowest to highest)" to snag a good deal.
How many flights per day from Cyril E. King Airport (STT) to Key West Intl. Airport (EYW)?
You'll need to hop on a flight with a layover if you're traveling from Cyril E. King Airport (STT) to Key West Intl. Airport (EYW). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from STT to EYW?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can change based on a range of factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cyril E. King Airport (STT) to Key West Intl. Airport (EYW)?
Choose a flight from Cyril E. King Airport (STT) to Key West Intl. Airport (EYW) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Cyril E. King Airport (STT) to Key West Intl. Airport (EYW) last-minute?
Last-minute fares from STT to EYW are typically more expensive. To secure the best prices, start looking for flights early. That being said, if your travel plans are flexible, you may score a cheap fare just before your departure.
Is it cheaper to book a STT to EYW flight and hotel package?
Booking a STT to EYW flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Select from our wide range of stays and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Cyril E. King Airport (STT) to Key West Intl. Airport (EYW)?
Usually, it's possible to reschedule or cancel your STT to EYW flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Cyril E. King
Destination airport
Key West Intl.
Roundtrip price
$479
Distance
1160 mi

Book with confidence

St. Thomas to Key West Flights

The cheapest times to fly from St. Thomas to Key West

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Thomas to Key West are during the month of February. You can find some of the cheapest flights from St. Thomas to Key West with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Thomas to Key West

Sunday is one of the best days to book for cheap flights from St. Thomas to Key West: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Thomas to Key West

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Thomas to Key West in 2025. You can also book with separate airlines for your outbound and return journeys, from $232 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Thomas to Key West flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Thomas to Key West airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

St. Thomas to Key West Flights

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*Available to One Key members.