$199 Cheap Flights from Key West (EYW) to St. Thomas (STT)

View $199 flight on Sat, Jan 17, 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 $199 for one-way flights and $428 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Tue, Jan 13 - Sat, Jan 17
EYW
Key West
STT
St. Thomas
$428 Roundtrip, found 4 hours ago
$428
Roundtrip
found 4 hours ago
Select JetBlue Airways flight, departing Tue, Jan 13 from Key West to St. Thomas, returning Sat, Jan 17, priced at $428 found 4 hours ago
JetBlue Airways
Tue, Jan 13 - Sat, Jan 31
EYW
Key West
STT
St. Thomas
$452 Roundtrip, found 4 hours ago
$452
Roundtrip
found 4 hours ago
Select JetBlue Airways flight, departing Tue, Jan 13 from Key West to St. Thomas, returning Sat, Jan 31, priced at $452 found 4 hours ago
JetBlue Airways
Tue, Jan 13 - Thu, Jan 29
EYW
Key West
STT
St. Thomas
$465 Roundtrip, found 4 hours ago
$465
Roundtrip
found 4 hours ago
Select JetBlue Airways flight, departing Tue, Jan 13 from Key West to St. Thomas, returning Thu, Jan 29, priced at $465 found 4 hours ago
American Airlines
Fri, Feb 20 - Wed, Feb 25
EYW
Key West
STT
St. Thomas
$479 Roundtrip, found 2 days ago
$479
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Feb 20 from Key West to St. Thomas, returning Wed, Feb 25, priced at $479 found 2 days ago
Delta
Wed, Feb 18 - Thu, Feb 26
EYW
Key West
STT
St. Thomas
$485 Roundtrip, found 2 days ago
$485
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Feb 18 from Key West to St. Thomas, returning Thu, Feb 26, priced at $485 found 2 days ago
Delta
Sat, Jan 17 - Wed, Jan 21
EYW
Key West
STT
St. Thomas
$489 Roundtrip, found 1 day ago
$489
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Jan 17 from Key West to St. Thomas, returning Wed, Jan 21, priced at $489 found 1 day ago
American Airlines
Sat, Feb 21 - Tue, Feb 24
EYW
Key West
STT
St. Thomas
$504 Roundtrip, found 2 days ago
$504
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Feb 21 from Key West to St. Thomas, returning Tue, Feb 24, priced at $504 found 2 days ago
American Airlines
Fri, Feb 20 - Wed, Feb 25
EYW
Key West
STT
St. Thomas
$505 Roundtrip, found 2 days ago
$505
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Feb 20 from Key West to St. Thomas, returning Wed, Feb 25, priced at $505 found 2 days ago
American Airlines
Sat, Apr 18 - Wed, Apr 22
EYW
Key West
STT
St. Thomas
$509 Roundtrip, found 3 days ago
$509
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat, Apr 18 from Key West to St. Thomas, returning Wed, Apr 22, priced at $509 found 3 days ago
United
Tue, Jan 13 - Tue, Jan 27
EYW
Key West
STT
St. Thomas
$584 Roundtrip, found 4 hours ago
$584
Roundtrip
found 4 hours ago
Select United flight, departing Tue, Jan 13 from Key West to St. Thomas, returning Tue, Jan 27, priced at $584 found 4 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 Cyril E. King STT. Cheapest option available. Flights from $586
STT
Cyril E. King
Cheapest
Flights from $586

Frequently asked questions

How much does a flight from Key West Intl. Airport (EYW) to Cyril E. King Airport (STT) cost?
Grab a cheap one-way flight from $199 or cheap return flight from $428 from Key West Intl. Airport (EYW) to Cyril E. King Airport (STT) 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 Key West Intl. Airport (EYW) to Cyril E. King Airport (STT)?
Traveling in January may help you find better deals, as it's the cheapest month for flights between EYW and STT. You'll typically find the lowest prices during the off-season.
What is the cheapest airline that flies from Key West Intl. Airport (EYW) to Cyril E. King Airport (STT)?
Use the filter tool on Expedia to compare different airlines and find the cheapest carrier that'll fly you from EYW to STT. Then, sort your results by "Price (lowest to highest)" to snap up the best deal available.
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.

Travel information

Origin airport
Key West Intl.
Destination airport
Cyril E. King
Airlines serving
American Airlines, Delta, JetBlue Airways
Roundtrip price
$428
Distance
1160 mi

Book with confidence

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 January. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $199 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.

 

Key West to St. Thomas Flights

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*Available to One Key members.