$972 Cheap Flights from Reykjavik (KEF) to St. Thomas (STT)

View $972 flight on Thu, Aug 27, 2026Opens in a new window

Popular airlines from Reykjavik–Keflavik Intl. Airport (KEF) to Cyril E. King Airport (STT)

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Cheap Flights from Reykjavik to St. Thomas (KEF-STT)

Prices were available within the past 7 days and start at $972 for one-way flights and $1,624 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, Nov 28 - Sun, Nov 30
KEF
Reykjavik
STT
St. Thomas
$1,624 Roundtrip, found 6 days ago
$1,624
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Nov 28 from Reykjavik to St. Thomas, returning Sun, Nov 30, priced at $1,624 found 6 days ago
American Airlines
Fri, Nov 28 - Sun, Nov 30
KEF
Reykjavik
STT
St. Thomas
$1,703 Roundtrip, found 6 days ago
$1,703
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Nov 28 from Reykjavik to St. Thomas, returning Sun, Nov 30, priced at $1,703 found 6 days ago
American Airlines
Fri, Nov 28 - Sun, Nov 30
KEF
Reykjavik
STT
St. Thomas
$1,852 Roundtrip, found 6 days ago
$1,852
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Nov 28 from Reykjavik to St. Thomas, returning Sun, Nov 30, priced at $1,852 found 6 days ago
American Airlines
Fri, Nov 28 - Sun, Nov 30
KEF
Reykjavik
STT
St. Thomas
$1,904 Roundtrip, found 6 days ago
$1,904
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Nov 28 from Reykjavik to St. Thomas, returning Sun, Nov 30, priced at $1,904 found 6 days ago
American Airlines
Fri, Nov 28 - Sun, Nov 30
KEF
Reykjavik
STT
St. Thomas
$1,953 Roundtrip, found 6 days ago
$1,953
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Nov 28 from Reykjavik to St. Thomas, returning Sun, Nov 30, priced at $1,953 found 6 days ago
American Airlines
Fri, Nov 28 - Sun, Nov 30
KEF
Reykjavik
STT
St. Thomas
$1,959 Roundtrip, found 6 days ago
$1,959
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Nov 28 from Reykjavik to St. Thomas, returning Sun, Nov 30, priced at $1,959 found 6 days ago
American Airlines
Fri, Nov 28 - Sun, Nov 30
KEF
Reykjavik
STT
St. Thomas
$1,974 Roundtrip, found 6 days ago
$1,974
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Nov 28 from Reykjavik to St. Thomas, returning Sun, Nov 30, priced at $1,974 found 6 days ago
American Airlines
Fri, Nov 28 - Sun, Nov 30
KEF
Reykjavik
STT
St. Thomas
$2,008 Roundtrip, found 6 days ago
$2,008
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Nov 28 from Reykjavik to St. Thomas, returning Sun, Nov 30, priced at $2,008 found 6 days ago
American Airlines
Fri, Nov 28 - Sun, Nov 30
KEF
Reykjavik
STT
St. Thomas
$2,009 Roundtrip, found 6 days ago
$2,009
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Nov 28 from Reykjavik to St. Thomas, returning Sun, Nov 30, priced at $2,009 found 6 days ago
British Airways
Fri, Nov 28 - Sun, Nov 30
KEF
Reykjavik
STT
St. Thomas
$2,043 Roundtrip, found 6 days ago
$2,043
Roundtrip
found 6 days ago
Select British Airways flight, departing Fri, Nov 28 from Reykjavik to St. Thomas, returning Sun, Nov 30, priced at $2,043 found 6 days ago

Frequently asked questions

How much does a flight from Keflavik Intl. Airport (KEF) to Cyril E. King Airport (STT) cost?
Lock in a cheap one-way flight from $972 or cheap return flight from $1,624 from Keflavik Intl. Airport (KEF) 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 Keflavik Intl. Airport (KEF) to Cyril E. King Airport (STT)?
The cheapest month to fly from KEF to STT is November, when demand is low. Off-peak months are usually when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Keflavik Intl. Airport (KEF) to Cyril E. King Airport (STT)?
To find the cheapest airline that'll fly you from KEF to STT, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Keflavik Intl. Airport (KEF) to Cyril E. King Airport (STT)?
There aren't any daily nonstop flights available from Keflavik Intl. Airport (KEF) to Cyril E. King Airport (STT). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from KEF to STT?
Usually you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* But this can change depending on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Keflavik Intl. Airport (KEF) to Cyril E. King Airport (STT)?
Book a flight from Keflavik Intl. Airport (KEF) to Cyril E. King Airport (STT) that takes off before 3 PM to reduce the risk of cancellations and delays. 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 Keflavik Intl. Airport (KEF) to Cyril E. King Airport (STT) last-minute?
Last-minute bookings from KEF to STT are generally more expensive. To secure the best rates, start looking for flights ahead of time. That being said, if you can play around with your travel dates, it's possible to find a cheap fare right before your trip.
Is it cheaper to book a KEF to STT flight and hotel package?
Opting for a KEF to STT flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Choose from our extensive range of hotels and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Keflavik Intl. Airport (KEF) to Cyril E. King Airport (STT)?
If you reserved your KEF to STT flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you'd like more information.

Travel information

Origin airport
Keflavik Intl.
Destination airport
Cyril E. King
Roundtrip price
$1,624
Distance
3718 mi

Book with confidence

Reykjavik to St. Thomas Flights

The cheapest times to fly from Reykjavik 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 Reykjavik to St. Thomas are during the month of November. You can find some of the cheapest flights from Reykjavik to St. Thomas with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Reykjavik to St. Thomas

Sunday is one of the best days to book for cheap flights from Reykjavik 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 Reykjavik 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 Reykjavik to St. Thomas in 2025. You can also book with separate airlines for your outbound and return journeys, from $972 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 Reykjavik 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 Reykjavik 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.

 

Reykjavik to St. Thomas Flights

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*Available to One Key members.