$260 Cheap Flights from Key West (EYW) to St. Thomas (STT)

View $260 flight on Tue, Feb 3, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at $260 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, Sep 5 - Thu, Sep 11
EYW
Key West
STT
St. Thomas
$479 Roundtrip, found 9 hours ago
$479
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Fri, Sep 5 from Key West to St. Thomas, returning Thu, Sep 11, priced at $479 found 9 hours ago
American Airlines
Fri, Apr 10 - Sun, May 3
EYW
Key West
STT
St. Thomas
$502 Roundtrip, found 2 hours ago
$502
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Fri, Apr 10 from Key West to St. Thomas, returning Sun, May 3, priced at $502 found 2 hours ago
American Airlines
Fri, Sep 5 - Sat, Sep 13
EYW
Key West
STT
St. Thomas
$504 Roundtrip, found 9 hours ago
$504
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Fri, Sep 5 from Key West to St. Thomas, returning Sat, Sep 13, priced at $504 found 9 hours ago
American Airlines
Tue, Feb 3 - Thu, Feb 5
EYW
Key West
STT
St. Thomas
$519 Roundtrip, found 2 days ago
$519
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Feb 3 from Key West to St. Thomas, returning Thu, Feb 5, priced at $519 found 2 days ago
Delta
Tue, Feb 3 - Thu, Feb 5
EYW
Key West
STT
St. Thomas
$536 Roundtrip, found 2 days ago
$536
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Feb 3 from Key West to St. Thomas, returning Thu, Feb 5, priced at $536 found 2 days ago
American Airlines
Fri, Aug 15 - Mon, Aug 18
EYW
Key West
STT
St. Thomas
$544 Roundtrip, found 6 hours ago
$544
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Fri, Aug 15 from Key West to St. Thomas, returning Mon, Aug 18, priced at $544 found 6 hours ago
Delta
Wed, Sep 3 - Thu, Sep 11
EYW
Key West
STT
St. Thomas
$560 Roundtrip, found 9 hours ago
$560
Roundtrip
found 9 hours ago
Select Delta flight, departing Wed, Sep 3 from Key West to St. Thomas, returning Thu, Sep 11, priced at $560 found 9 hours ago
American Airlines
Mon, Aug 18 - Fri, Aug 22
EYW
Key West
STT
St. Thomas
$569 Roundtrip, found 4 hours ago
$569
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Mon, Aug 18 from Key West to St. Thomas, returning Fri, Aug 22, priced at $569 found 4 hours ago
American Airlines
Sun, Jul 27 - Sat, Aug 16
EYW
Key West
STT
St. Thomas
$570 Roundtrip, found 1 day ago
$570
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sun, Jul 27 from Key West to St. Thomas, returning Sat, Aug 16, priced at $570 found 1 day ago
United
Tue, Jul 15 - Sun, Jul 20
EYW
Key West
STT
St. Thomas
$935 Roundtrip, found 7 hours ago
$935
Roundtrip
found 7 hours ago
Select United flight, departing Tue, Jul 15 from Key West to St. Thomas, returning Sun, Jul 20, priced at $935 found 7 hours ago

Alternative airports near St. Thomas

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Terrance B. Lettsome Intl. EIS. Flights from $848
EIS
Terrance B. Lettsome Intl.
Flights from $848
Flights from Key West (EYW) to St. Thomas (STT)
Origin airport
Key West Intl.
Destination airport
Cyril E. King
Airlines serving
American Airlines, Delta, United
Roundtrip price
$479
Distance
1160 mi

Key West to St. Thomas Flights

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

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 Key West to St. Thomas are during the month of September. You can find some of the cheapest flights from Key West to St. Thomas with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Key West to St. Thomas: 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 Key West to St. Thomas

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 Key West to St. Thomas in 2025. You can also book with separate airlines for your outbound and return journeys, from $260 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 Key West to St. Thomas 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 Key West to St. Thomas 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.

 

Frequently asked questions

How much does a flight from Key West Intl. Airport (EYW) to Cyril E. King Airport (STT) cost?
Discover the latest flight deals from EYW to STT by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from EYW to STT?
The cheapest flights from EYW to STT are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from EYW to STT?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from EYW to STT. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Key West Intl. Airport (EYW) to Cyril E. King Airport (STT)?
There are no daily nonstop flights available from Key West Intl. Airport (EYW) to Cyril E. King Airport (STT). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be on your way before you know it.
What day of the week has the most flights from EYW to STT?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Key West Intl. Airport (EYW) to Cyril E. King Airport (STT)?
To land at Cyril E. King Airport (STT) without delays, select a flight that leaves Key West Intl. Airport (EYW) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Key West Intl. Airport (EYW) to Cyril E. King Airport (STT) last-minute?
Waiting until right before your break to book your flight from EYW to STT often results in higher prices. While you may come across some last-minute deals, they're not always guaranteed. Keep your travel plans flexible to maximize your chances of landing a bargain.
Is it cheaper to book an EYW to STT flight and hotel package?
You'll typically save money by securing an EYW to STT flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. After choosing your ideal accommodations and flights, consider other add-ons like car rentals, tours and activities.
Can I cancel or change the date of my flight from Key West Intl. Airport (EYW) to Cyril E. King Airport (STT)?
If you booked your EYW to STT flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for further details.

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*Available to One Key members.