Cheap Flights from St. Thomas (STT) to Ulsan (USN)

Popular airlines from Cyril E. King Airport (STT) to Ulsan (USN)

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Flights from St. Thomas (STT) to Ulsan (USN)
Origin airport
Cyril E. King
Destination airport
Ulsan
Distance
8593 mi

St. Thomas to Ulsan Flights

The cheapest times to fly from St. Thomas to Ulsan

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

 

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

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

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 Ulsan in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Ulsan 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 Ulsan 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 Ulsan Airport (USN) cost?
Discover the latest flight deals from STT to USN 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 STT to USN?
The cheapest flights from STT to USN 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 STT to USN?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from STT to USN. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Cyril E. King Airport (STT) to Ulsan Airport (USN)?
You'll need to catch a flight with a layover when traveling from Cyril E. King Airport (STT) to Ulsan Airport (USN). There are no daily direct flights 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 STT to USN?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change based on a range of factors, such as the time of year and carrier.*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 Ulsan Airport (USN)?
Book a flight from Cyril E. King Airport (STT) to Ulsan Airport (USN) that takes off before 3 PM to reduce the likelihood of delays and cancellations. 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 Cyril E. King Airport (STT) to Ulsan Airport (USN) last-minute?
Last-minute fares from STT to USN are generally more expensive. To lock in the lowest rates, start searching for flights well in advance. That being said, if your travel plans are flexible, you may score a cheap ticket right before your trip.
Is it cheaper to book a STT to USN flight and hotel package?
You can save money by booking a STT to USN flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. Once you've selected your ideal accommodations and flights, you can add extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Cyril E. King Airport (STT) to Ulsan Airport (USN)?
It's usually possible to cancel or reschedule your STT to USN flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

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