$136 Cheap Flights from Austin (AUS) to St. Thomas (STT)

View $136 flight on Wed, Jan 28, 2026Opens in a new window

Popular airlines from Austin-Bergstrom Intl. Airport (AUS) to Cyril E. King Airport (STT)

Cheap Flights from Austin to St. Thomas (AUS-STT)

Prices were available within the past 7 days and start at $136 for one-way flights and $225 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Mon, Dec 8 - Sat, Dec 13
AUS
Austin
STT
St. Thomas
$225 Roundtrip, found 2 days ago
$225
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Mon, Dec 8 from Austin to St. Thomas, returning Sat, Dec 13, priced at $225 found 2 days ago
Spirit Airlines
Mon, Dec 8 - Sat, Dec 13
AUS
Austin
STT
St. Thomas
$236 Roundtrip, found 2 days ago
$236
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Mon, Dec 8 from Austin to St. Thomas, returning Sat, Dec 13, priced at $236 found 2 days ago
Spirit Airlines
Mon, Nov 17 - Thu, Nov 20
AUS
Austin
STT
St. Thomas
$247 Roundtrip, found 6 days ago
$247
Roundtrip
found 6 days ago
Select Spirit Airlines flight, departing Mon, Nov 17 from Austin to St. Thomas, returning Thu, Nov 20, priced at $247 found 6 days ago
Spirit Airlines
Wed, Jan 28 - Sun, Feb 1
AUS
Austin
STT
St. Thomas
$261 Roundtrip, found 2 days ago
$261
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Wed, Jan 28 from Austin to St. Thomas, returning Sun, Feb 1, priced at $261 found 2 days ago
Spirit Airlines
Fri, Dec 12 - Sat, Dec 20
AUS
Austin
STT
St. Thomas
$269 Roundtrip, found 6 days ago
$269
Roundtrip
found 6 days ago
Select Spirit Airlines flight, departing Fri, Dec 12 from Austin to St. Thomas, returning Sat, Dec 20, priced at $269 found 6 days ago
Spirit Airlines
Fri, Dec 12 - Thu, Dec 18
AUS
Austin
STT
St. Thomas
$271 Roundtrip, found 2 days ago
$271
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Fri, Dec 12 from Austin to St. Thomas, returning Thu, Dec 18, priced at $271 found 2 days ago
American Airlines
Fri, Jan 23 - Mon, Jan 26
AUS
Austin
STT
St. Thomas
$333 Roundtrip, just found
$333
Roundtrip
just found
Select American Airlines flight, departing Fri, Jan 23 from Austin to St. Thomas, returning Mon, Jan 26, priced at $333 just found
Delta
Wed, May 13 - Wed, May 20
AUS
Austin
STT
St. Thomas
$385 Roundtrip, found 5 hours ago
$385
Roundtrip
found 5 hours ago
Select Delta flight, departing Wed, May 13 from Austin to St. Thomas, returning Wed, May 20, priced at $385 found 5 hours ago
United
Sat, Jan 31 - Wed, Feb 4
AUS
Austin
STT
St. Thomas
$385 Roundtrip, found 1 day ago
$385
Roundtrip
found 1 day ago
Select United flight, departing Sat, Jan 31 from Austin to St. Thomas, returning Wed, Feb 4, priced at $385 found 1 day ago
JetBlue Airways
Wed, Dec 31 - Sat, Jan 17
AUS
Austin
STT
St. Thomas
$440 Roundtrip, found 3 days ago
$440
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Wed, Dec 31 from Austin to St. Thomas, returning Sat, Jan 17, priced at $440 found 3 days ago

Find the cheapest month to fly from Austin (AUS) to St. Thomas (STT)

February is typically the cheapest month to fly

From $173 - $534 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 $1,069
EIS
Terrance B. Lettsome Intl.
Flights from $1,069

Frequently asked questions

How much does a flight from Austin-Bergstrom Intl. Airport (AUS) to Cyril E. King Airport (STT) cost?
Lock in a cheap one-way flight from $136 or cheap return flight from $225 from Austin-Bergstrom Intl. Airport (AUS) to Cyril E. King Airport (STT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Austin-Bergstrom Intl. Airport (AUS) to Cyril E. King Airport (STT)?
Planning your trip for December may help you find better deals, as it's the cheapest month for flights between AUS and STT. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from Austin-Bergstrom Intl. Airport (AUS) to Cyril E. King Airport (STT)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest AUS to STT flight.
How many flights per day from Austin-Bergstrom Intl. Airport (AUS) to Cyril E. King Airport (STT)?
Direct flights from Austin-Bergstrom Intl. Airport (AUS) to Cyril E. King Airport (STT) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from AUS to STT?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary based on a range of factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Austin-Bergstrom Intl. Airport (AUS) to Cyril E. King Airport (STT)?
Opt for a flight from Austin-Bergstrom Intl. Airport (AUS) to Cyril E. King Airport (STT) that takes off before 3 PM to reduce the risk of 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 Austin-Bergstrom Intl. Airport (AUS) to Cyril E. King Airport (STT) last-minute?
Holding off until just before your departure to book a flight from AUS to STT generally means paying more. While you may come across some last-minute discounts, they're not always guaranteed. Be flexible with your itinerary to maximize your chances of landing a bargain.
Is it cheaper to book an AUS to STT flight and hotel package?
Booking an AUS to STT flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Select from our wide 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 Austin-Bergstrom Intl. Airport (AUS) to Cyril E. King Airport (STT)?
If you booked your AUS to STT flight within the last 24 hours, you may be able to modify or cancel it without 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, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Austin-Bergstrom Intl.
Destination airport
Cyril E. King
Airlines serving
American Airlines, Delta, JetBlue Airways, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$224
Distance
2206 mi

Book with confidence

Austin to St. Thomas Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Austin 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 Austin 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 Austin to St. Thomas in 2025. You can also book with separate airlines for your outbound and return journeys, from $136 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 Austin 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 Austin 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.

 

Austin to St. Thomas Flights

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*Available to One Key members.