$122 Cheap Flights from Charleston (CHS) to St. Thomas (STT)

View $122 flight on Sat, Jul 26, 2025Opens in a new window

Popular airlines from Charleston Intl. Airport (CHS) to Cyril E. King Airport (STT)

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Cheap Flights from Charleston to St. Thomas (CHS-STT)

Prices were available within the past 7 days and start at $122 for one-way flights and $247 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Sat, Jul 19 - Sat, Jul 26
CHS
Charleston
STT
St. Thomas
$247 Roundtrip, found 1 hour ago
$247
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Sat, Jul 19 from Charleston to St. Thomas, returning Sat, Jul 26, priced at $247 found 1 hour ago
Spirit Airlines
Sun, Aug 31 - Thu, Sep 4
CHS
Charleston
STT
St. Thomas
$253 Roundtrip, found 23 hours ago
$253
Roundtrip
found 23 hours ago
Select Spirit Airlines flight, departing Sun, Aug 31 from Charleston to St. Thomas, returning Thu, Sep 4, priced at $253 found 23 hours ago
Spirit Airlines
Sat, Jul 26 - Sat, Aug 2
CHS
Charleston
STT
St. Thomas
$262 Roundtrip, found 19 hours ago
$262
Roundtrip
found 19 hours ago
Select Spirit Airlines flight, departing Sat, Jul 26 from Charleston to St. Thomas, returning Sat, Aug 2, priced at $262 found 19 hours ago
Spirit Airlines
Thu, Sep 11 - Sun, Sep 14
CHS
Charleston
STT
St. Thomas
$265 Roundtrip, found 4 hours ago
$265
Roundtrip
found 4 hours ago
Select Spirit Airlines flight, departing Thu, Sep 11 from Charleston to St. Thomas, returning Sun, Sep 14, priced at $265 found 4 hours ago
Spirit Airlines
Thu, Aug 28 - Sat, Sep 6
CHS
Charleston
STT
St. Thomas
$272 Roundtrip, found 1 hour ago
$272
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Thu, Aug 28 from Charleston to St. Thomas, returning Sat, Sep 6, priced at $272 found 1 hour ago
Spirit Airlines
Sat, Aug 9 - Thu, Aug 14
CHS
Charleston
STT
St. Thomas
$280 Roundtrip, found 1 day ago
$280
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Sat, Aug 9 from Charleston to St. Thomas, returning Thu, Aug 14, priced at $280 found 1 day ago
Delta
Sun, Oct 19 - Thu, Oct 23
CHS
Charleston
STT
St. Thomas
$452 Roundtrip, found 21 hours ago
$452
Roundtrip
found 21 hours ago
Select Delta flight, departing Sun, Oct 19 from Charleston to St. Thomas, returning Thu, Oct 23, priced at $452 found 21 hours ago
American Airlines
Fri, Oct 24 - Mon, Oct 27
CHS
Charleston
STT
St. Thomas
$453 Roundtrip, just found
$453
Roundtrip
just found
Select American Airlines flight, departing Fri, Oct 24 from Charleston to St. Thomas, returning Mon, Oct 27, priced at $453 just found
JetBlue Airways
Mon, Dec 8 - Fri, Dec 12
CHS
Charleston
STT
St. Thomas
$455 Roundtrip, found 1 day ago
$455
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Mon, Dec 8 from Charleston to St. Thomas, returning Fri, Dec 12, priced at $455 found 1 day ago
United
Thu, Feb 26 - Mon, Mar 2
CHS
Charleston
STT
St. Thomas
$456 Roundtrip, found 4 days ago
$456
Roundtrip
found 4 days ago
Select United flight, departing Thu, Feb 26 from Charleston to St. Thomas, returning Mon, Mar 2, priced at $456 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 Terrance B. Lettsome Intl. EIS. Flights from $1,040
EIS
Terrance B. Lettsome Intl.
Flights from $1,040
Flights from Charleston (CHS) to St. Thomas (STT)
Origin airport
Charleston Intl.
Destination airport
Cyril E. King
Airlines serving
American Airlines, Delta, JetBlue Airways, Spirit Airlines, United
Roundtrip price
$246
Distance
1372 mi

Charleston to St. Thomas Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Charleston 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 Charleston 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 Charleston to St. Thomas in 2025. You can also book with separate airlines for your outbound and return journeys, from $122 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 Charleston 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 Charleston 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 Charleston Intl. Airport (CHS) to Cyril E. King Airport (STT) cost?
Discover the latest flight deals from CHS 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 CHS to STT?
The cheapest flights from CHS 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 CHS to STT?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from CHS to STT. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Charleston Intl. Airport (CHS) to Cyril E. King Airport (STT)?
There are no daily direct flights from Charleston Intl. Airport (CHS) to Cyril E. King Airport (STT). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from CHS to STT?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change depending on a range of factors, including 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 Charleston Intl. Airport (CHS) to Cyril E. King Airport (STT)?
Opt for a flight from Charleston Intl. Airport (CHS) to Cyril E. King Airport (STT) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures after this hour 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 Charleston Intl. Airport (CHS) to Cyril E. King Airport (STT) last-minute?
Last-minute bookings from CHS to STT are usually more expensive. To secure the lowest prices, start looking for flights well in advance. That said, if you're flexible with your travel dates, it's possible to find a cheap ticket right before your journey.
Is it cheaper to book a CHS to STT flight and hotel package?
Securing a CHS to STT flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Pick from our impressive range of hotels and then add activities, car rentals and flights 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 Charleston Intl. Airport (CHS) to Cyril E. King Airport (STT)?
Usually, it's possible to cancel or reschedule your CHS to STT flight. However, for bookings made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.