$109 Cheap Flights from San Antonio (SAT) to St. Thomas (STT)

View $109 flight on Thu, Jan 8, 2026Opens in a new window

Popular airlines from San Antonio International Airport (SAT) to Cyril E. King Airport (STT)

Cheap Flights from San Antonio to St. Thomas (SAT-STT)

Prices were available within the past 7 days and start at $109 for one-way flights and $245 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Mon, Jan 26 - Thu, Jan 29
SAT
San Antonio
STT
St. Thomas
$245 Roundtrip, found 1 day ago
$245
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Mon, Jan 26 from San Antonio to St. Thomas, returning Thu, Jan 29, priced at $245 found 1 day ago
Spirit Airlines
Sun, Feb 1 - Sat, Feb 7
SAT
San Antonio
STT
St. Thomas
$260 Roundtrip, found 2 days ago
$260
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Sun, Feb 1 from San Antonio to St. Thomas, returning Sat, Feb 7, priced at $260 found 2 days ago
Spirit Airlines
Sat, Jan 10 - Mon, Jan 12
SAT
San Antonio
STT
St. Thomas
$270 Roundtrip, found 1 day ago
$270
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Sat, Jan 10 from San Antonio to St. Thomas, returning Mon, Jan 12, priced at $270 found 1 day ago
Spirit Airlines
Mon, Feb 2 - Mon, Feb 9
SAT
San Antonio
STT
St. Thomas
$280 Roundtrip, found 2 days ago
$280
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Mon, Feb 2 from San Antonio to St. Thomas, returning Mon, Feb 9, priced at $280 found 2 days ago
Spirit Airlines
Sun, Feb 1 - Fri, Feb 6
SAT
San Antonio
STT
St. Thomas
$283 Roundtrip, found 2 hours ago
$283
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Sun, Feb 1 from San Antonio to St. Thomas, returning Fri, Feb 6, priced at $283 found 2 hours ago
Spirit Airlines
Thu, Nov 27 - Fri, Dec 5
SAT
San Antonio
STT
St. Thomas
$285 Roundtrip, found 3 hours ago
$285
Roundtrip
found 3 hours ago
Select Spirit Airlines flight, departing Thu, Nov 27 from San Antonio to St. Thomas, returning Fri, Dec 5, priced at $285 found 3 hours ago
American Airlines
Sun, Feb 1 - Fri, Feb 6
SAT
San Antonio
STT
St. Thomas
$349 Roundtrip, found 2 hours ago
$349
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sun, Feb 1 from San Antonio to St. Thomas, returning Fri, Feb 6, priced at $349 found 2 hours ago
Delta
Mon, Feb 2 - Wed, Feb 4
SAT
San Antonio
STT
St. Thomas
$349 Roundtrip, found 2 hours ago
$349
Roundtrip
found 2 hours ago
Select Delta flight, departing Mon, Feb 2 from San Antonio to St. Thomas, returning Wed, Feb 4, priced at $349 found 2 hours ago
United
Sat, Dec 6 - Sun, Dec 7
SAT
San Antonio
STT
St. Thomas
$380 Roundtrip, found 12 hours ago
$380
Roundtrip
found 12 hours ago
Select United flight, departing Sat, Dec 6 from San Antonio to St. Thomas, returning Sun, Dec 7, priced at $380 found 12 hours ago
Southwest Airlines
Wed, Feb 11 - Mon, Feb 16
SAT
San Antonio
STT
St. Thomas
$679 Roundtrip, found 2 days ago
$679
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Wed, Feb 11 from San Antonio to St. Thomas, returning Mon, Feb 16, priced at $679 found 2 days ago

Find the cheapest month to fly from San Antonio (SAT) to St. Thomas (STT)

January is typically the cheapest month to fly

From $205 - $596 per traveler.

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 $1,155
EIS
Terrance B. Lettsome Intl.
Flights from $1,155

Frequently asked questions

How much does a flight from San Antonio Intl. Airport (SAT) to Cyril E. King Airport (STT) cost?
Grab a cheap one-way flight from $109 or cheap return flight from $245 from San Antonio Intl. Airport (SAT) to Cyril E. King Airport (STT) 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 San Antonio Intl. Airport (SAT) to Cyril E. King Airport (STT)?
Planning your getaway for January can help you save, as it's the cheapest month for flights between SAT and STT. You'll typically find the lowest prices during the off-season.
What is the cheapest airline that flies from San Antonio Intl. Airport (SAT) to Cyril E. King Airport (STT)?
To find the cheapest airline that'll fly you from SAT to STT, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from San Antonio Intl. Airport (SAT) to Cyril E. King Airport (STT)?
There are no daily nonstop flights departing from San Antonio Intl. Airport (SAT) to Cyril E. King Airport (STT). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from SAT to STT?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Antonio Intl. Airport (SAT) to Cyril E. King Airport (STT)?
To arrive at Cyril E. King Airport (STT) on time, opt for a flight that leaves San Antonio Intl. Airport (SAT) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 San Antonio Intl. Airport (SAT) to Cyril E. King Airport (STT) last-minute?
Waiting until just before your departure to book a flight from SAT to STT often results in higher prices. While you might find some last-minute deals, there's no guarantee. Allow some flexibility in your schedule to maximize your chances of getting a bargain.
Is it cheaper to book a SAT to STT flight and hotel package?
Compared with arranging flights and hotels separately, booking a SAT to STT flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one easy place will take the hassle out of planning your trip. Simply secure your flights and select from our extensive range of stays, then customize your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from San Antonio Intl. Airport (SAT) to Cyril E. King Airport (STT)?
Typically, it's possible to cancel or reschedule your SAT to STT flight. However, if the booking was made more than 24 hours ago, additional charges 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.

Travel information

Origin airport
San Antonio Intl.
Destination airport
Cyril E. King
Airlines serving
American Airlines, Delta, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$244
Distance
2242 mi

Book with confidence

San Antonio to St. Thomas Flights

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

 

The best time to book a flight from San Antonio to St. Thomas

Sunday is one of the best days to book for cheap flights from San Antonio 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 San Antonio 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 San Antonio to St. Thomas in 2025. You can also book with separate airlines for your outbound and return journeys, from $109 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 San Antonio 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 San Antonio 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.

 

San Antonio to St. Thomas Flights

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*Available to One Key members.