$974 Cheap Flights from Seoul (ICN) to St. Thomas (STT)

View $974 flight on Mon, Apr 6, 2026Opens in a new window

Popular airlines from Incheon Intl. Airport (ICN) to Cyril E. King Airport (STT)

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Cheap Flights from Seoul to St. Thomas (ICN-STT)

Prices were available within the past 7 days and start at $974 for one-way flights and $1,293 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, Sep 27 - Wed, Oct 15
ICN
Seoul
STT
St. Thomas
$1,293 Roundtrip, found 4 days ago
$1,293
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, Sep 27 from Seoul to St. Thomas, returning Wed, Oct 15, priced at $1,293 found 4 days ago
American Airlines
Sat, Sep 27 - Fri, Oct 17
ICN
Seoul
STT
St. Thomas
$1,348 Roundtrip, found 4 days ago
$1,348
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, Sep 27 from Seoul to St. Thomas, returning Fri, Oct 17, priced at $1,348 found 4 days ago
American Airlines
Fri, Sep 26 - Wed, Oct 15
ICN
Seoul
STT
St. Thomas
$1,360 Roundtrip, found 4 days ago
$1,360
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Sep 26 from Seoul to St. Thomas, returning Wed, Oct 15, priced at $1,360 found 4 days ago
United
Fri, Sep 19 - Sat, Oct 4
ICN
Seoul
STT
St. Thomas
$1,388 Roundtrip, found 4 days ago
$1,388
Roundtrip
found 4 days ago
Select United flight, departing Fri, Sep 19 from Seoul to St. Thomas, returning Sat, Oct 4, priced at $1,388 found 4 days ago
American Airlines
Fri, Sep 26 - Fri, Oct 17
ICN
Seoul
STT
St. Thomas
$1,415 Roundtrip, found 4 days ago
$1,415
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Sep 26 from Seoul to St. Thomas, returning Fri, Oct 17, priced at $1,415 found 4 days ago
Delta
Wed, Sep 10 - Sun, Sep 21
ICN
Seoul
STT
St. Thomas
$1,432 Roundtrip, found 4 days ago
$1,432
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Sep 10 from Seoul to St. Thomas, returning Sun, Sep 21, priced at $1,432 found 4 days ago
Delta
Wed, Sep 10 - Thu, Sep 25
ICN
Seoul
STT
St. Thomas
$1,439 Roundtrip, found 4 days ago
$1,439
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Sep 10 from Seoul to St. Thomas, returning Thu, Sep 25, priced at $1,439 found 4 days ago
Delta
Mon, Sep 29 - Sat, Oct 11
ICN
Seoul
STT
St. Thomas
$1,442 Roundtrip, found 4 days ago
$1,442
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Sep 29 from Seoul to St. Thomas, returning Sat, Oct 11, priced at $1,442 found 4 days ago
United
Thu, Sep 11 - Sat, Sep 20
ICN
Seoul
STT
St. Thomas
$1,450 Roundtrip, found 4 days ago
$1,450
Roundtrip
found 4 days ago
Select United flight, departing Thu, Sep 11 from Seoul to St. Thomas, returning Sat, Sep 20, priced at $1,450 found 4 days ago
Qatar Airways
Fri, Aug 29 - Fri, Sep 19
ICN
Seoul
STT
St. Thomas
$2,221 Roundtrip, found 4 days ago
$2,221
Roundtrip
found 4 days ago
Select Qatar Airways flight, departing Fri, Aug 29 from Seoul to St. Thomas, returning Fri, Sep 19, priced at $2,221 found 4 days 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 $2,121
STT
Cyril E. King
Cheapest
Flights from $2,121
Flights from Seoul (ICN) to St. Thomas (STT)
Origin airport
Incheon Intl.
Destination airport
Cyril E. King
Roundtrip price
$1,292
Distance
8510 mi

Seoul to St. Thomas Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Seoul 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 Seoul 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 Seoul to St. Thomas in 2025. You can also book with separate airlines for your outbound and return journeys, from $974 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 Seoul 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 Seoul 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 Incheon Intl. Airport (ICN) to Cyril E. King Airport (STT) cost?
Discover the latest flight deals from ICN 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 ICN to STT?
The cheapest flights from ICN 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 ICN to STT?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from ICN to STT. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Incheon Intl. Airport (ICN) to Cyril E. King Airport (STT)?
You'll need to take a flight with a layover if you're traveling from Incheon Intl. Airport (ICN) to Cyril E. King Airport (STT). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from ICN to STT?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change based on a range of factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Incheon Intl. Airport (ICN) to Cyril E. King Airport (STT)?
Book a flight from Incheon Intl. Airport (ICN) to Cyril E. King Airport (STT) that takes off before 3 PM to reduce the risk of cancellations and delays. Departures later than this 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 Incheon Intl. Airport (ICN) to Cyril E. King Airport (STT) last-minute?
Booking your ticket from ICN to STT shortly before your getaway is typically more expensive. However, if you're flexible with your departure dates and times, you could land a cheap last-minute fare.
Is it cheaper to book an ICN to STT flight and hotel package?
Securing an ICN to STT flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Select from our extensive range of hotels 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 Incheon Intl. Airport (ICN) to Cyril E. King Airport (STT)?
Generally, it's possible to reschedule or cancel your ICN to STT flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.