$895 Cheap Flights from St. Thomas (STT) to Seoul (ICN)

View $895 flight on Wed, Mar 18, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at $895 for one-way flights and $1,534 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Mar 18 - Fri, Apr 10
STT
St. Thomas
ICN
Seoul
$1,534 Roundtrip, found 9 hours ago
$1,534
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Wed, Mar 18 from St. Thomas to Seoul, returning Fri, Apr 10, priced at $1,534 found 9 hours ago
Qatar Airways
Wed, Mar 18 - Fri, Apr 10
STT
St. Thomas
ICN
Seoul
$1,545 Roundtrip, found 9 hours ago
$1,545
Roundtrip
found 9 hours ago
Select Qatar Airways flight, departing Wed, Mar 18 from St. Thomas to Seoul, returning Fri, Apr 10, priced at $1,545 found 9 hours ago
Qatar Airways
Thu, Nov 13 - Tue, Nov 25
STT
St. Thomas
ICN
Seoul
$1,570 Roundtrip, found 17 hours ago
$1,570
Roundtrip
found 17 hours ago
Select Qatar Airways flight, departing Thu, Nov 13 from St. Thomas to Seoul, returning Tue, Nov 25, priced at $1,570 found 17 hours ago
Qatar Airways
Thu, Nov 13 - Tue, Nov 25
STT
St. Thomas
ICN
Seoul
$1,656 Roundtrip, found 17 hours ago
$1,656
Roundtrip
found 17 hours ago
Select Qatar Airways flight, departing Thu, Nov 13 from St. Thomas to Seoul, returning Tue, Nov 25, priced at $1,656 found 17 hours ago
American Airlines
Wed, Mar 18 - Fri, Apr 10
STT
St. Thomas
ICN
Seoul
$1,728 Roundtrip, found 9 hours ago
$1,728
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Wed, Mar 18 from St. Thomas to Seoul, returning Fri, Apr 10, priced at $1,728 found 9 hours ago
American Airlines
Wed, Mar 18 - Fri, Apr 10
STT
St. Thomas
ICN
Seoul
$1,856 Roundtrip, found 9 hours ago
$1,856
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Wed, Mar 18 from St. Thomas to Seoul, returning Fri, Apr 10, priced at $1,856 found 9 hours ago
Qatar Airways
Wed, Mar 18 - Fri, Apr 10
STT
St. Thomas
ICN
Seoul
$1,863 Roundtrip, found 9 hours ago
$1,863
Roundtrip
found 9 hours ago
Select Qatar Airways flight, departing Wed, Mar 18 from St. Thomas to Seoul, returning Fri, Apr 10, priced at $1,863 found 9 hours ago
Finnair
Wed, Mar 18 - Fri, Apr 10
STT
St. Thomas
ICN
Seoul
$2,035 Roundtrip, found 9 hours ago
$2,035
Roundtrip
found 9 hours ago
Select Finnair flight, departing Wed, Mar 18 from St. Thomas to Seoul, returning Fri, Apr 10, priced at $2,035 found 9 hours ago
Delta
Wed, Mar 18 - Fri, Apr 10
STT
St. Thomas
ICN
Seoul
$2,508 Roundtrip, found 9 hours ago
$2,508
Roundtrip
found 9 hours ago
Select Delta flight, departing Wed, Mar 18 from St. Thomas to Seoul, returning Fri, Apr 10, priced at $2,508 found 9 hours ago
United
Thu, Nov 13 - Sun, Nov 30
STT
St. Thomas
ICN
Seoul
$2,508 Roundtrip, found 6 hours ago
$2,508
Roundtrip
found 6 hours ago
Select United flight, departing Thu, Nov 13 from St. Thomas to Seoul, returning Sun, Nov 30, priced at $2,508 found 6 hours ago
Flights from St. Thomas (STT) to Seoul (ICN)
Origin airport
Cyril E. King
Destination airport
Incheon Intl.
Airlines serving
American Airlines, Delta, Qatar Airways, United
Roundtrip price
$1,534
Distance
8510 mi

St. Thomas to Seoul Flights

The cheapest times to fly from St. Thomas to Seoul

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

 

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

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

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 Seoul in 2025. You can also book with separate airlines for your outbound and return journeys, from $895 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 Seoul 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 Seoul 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 Cyril E. King Airport (STT) to Incheon Intl. Airport (ICN) cost?
Secure a cheap one-way flight from $895 or cheap return flight from $1,534 from Cyril E. King Airport (STT) to Incheon Intl. Airport (ICN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Cyril E. King Airport (STT) to Incheon Intl. Airport (ICN)?
March is the cheapest month to fly from STT to ICN. Avoiding peak travel times is often the key to better flight prices.
What is the cheapest airline that flies from Cyril E. King Airport (STT) to Incheon Intl. Airport (ICN)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest STT to ICN flight.
How many flights per day from Cyril E. King Airport (STT) to Incheon Intl. Airport (ICN)?
Nonstop flights from Cyril E. King Airport (STT) to Incheon Intl. Airport (ICN) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STT to ICN?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change based on a number 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 Cyril E. King Airport (STT) to Incheon Intl. Airport (ICN)?
To avoid possible delays on the Cyril E. King Airport (STT) to Incheon Intl. Airport (ICN) route, travel before 3 PM. Later flights have a 22% higher chance of cancellation.**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 Incheon Intl. Airport (ICN) last-minute?
Last-minute fares from STT to ICN are generally more expensive. To lock in the best rates, start searching for flights ahead of time. That being said, if you're flexible with your travel plans, it's possible to score a cheap ticket right before you leave.
Is it cheaper to book a STT to ICN flight and hotel package?
Compared with arranging flights and hotels separately, booking a STT to ICN flight and hotel package with Expedia could result in significant savings. Better still, having it all in one place will take the stress out of planning your trip. Simply pick your flights and choose from our wide range of stays, then personalize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Cyril E. King Airport (STT) to Incheon Intl. Airport (ICN)?
If you reserved your STT to ICN flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

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*Available to One Key members.