$82 Cheap Flights from Austin (AUS) to St. Thomas (STT)

View $82 flight on Sat, Mar 21, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at $82 for one-way flights and $191 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Mon, Mar 23 - Wed, Mar 25
AUS
Austin
STT
St. Thomas
$191 Roundtrip, found 9 hours ago
$191
Roundtrip
found 9 hours ago
Select Spirit Airlines flight, departing Mon, Mar 23 from Austin to St. Thomas, returning Wed, Mar 25, priced at $191 found 9 hours ago
Spirit Airlines
Sat, Mar 21 - Sat, Mar 28
AUS
Austin
STT
St. Thomas
$200 Roundtrip, just found
$200
Roundtrip
just found
Select Spirit Airlines flight, departing Sat, Mar 21 from Austin to St. Thomas, returning Sat, Mar 28, priced at $200 just found
Spirit Airlines
Mon, Mar 23 - Tue, Mar 31
AUS
Austin
STT
St. Thomas
$201 Roundtrip, found 7 hours ago
$201
Roundtrip
found 7 hours ago
Select Spirit Airlines flight, departing Mon, Mar 23 from Austin to St. Thomas, returning Tue, Mar 31, priced at $201 found 7 hours ago
Spirit Airlines
Mon, Mar 23 - Fri, Mar 27
AUS
Austin
STT
St. Thomas
$203 Roundtrip, found 13 hours ago
$203
Roundtrip
found 13 hours ago
Select Spirit Airlines flight, departing Mon, Mar 23 from Austin to St. Thomas, returning Fri, Mar 27, priced at $203 found 13 hours ago
Spirit Airlines
Mon, Mar 23 - Wed, Mar 25
AUS
Austin
STT
St. Thomas
$209 Roundtrip, found 9 hours ago
$209
Roundtrip
found 9 hours ago
Select Spirit Airlines flight, departing Mon, Mar 23 from Austin to St. Thomas, returning Wed, Mar 25, priced at $209 found 9 hours ago
Spirit Airlines
Sun, Mar 22 - Thu, Mar 26
AUS
Austin
STT
St. Thomas
$213 Roundtrip, found 1 hour ago
$213
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Sun, Mar 22 from Austin to St. Thomas, returning Thu, Mar 26, priced at $213 found 1 hour ago
Delta
Sun, Apr 12 - Tue, Apr 21
AUS
Austin
STT
St. Thomas
$316 Roundtrip, found 1 day ago
$316
Roundtrip
found 1 day ago
Select Delta flight, departing Sun, Apr 12 from Austin to St. Thomas, returning Tue, Apr 21, priced at $316 found 1 day ago
United
Fri, May 1 - Wed, May 6
AUS
Austin
STT
St. Thomas
$316 Roundtrip, found 12 hours ago
$316
Roundtrip
found 12 hours ago
Select United flight, departing Fri, May 1 from Austin to St. Thomas, returning Wed, May 6, priced at $316 found 12 hours ago
American Airlines
Mon, Apr 27 - Fri, May 1
AUS
Austin
STT
St. Thomas
$336 Roundtrip, found 7 hours ago
$336
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Mon, Apr 27 from Austin to St. Thomas, returning Fri, May 1, priced at $336 found 7 hours ago
Southwest Airlines
Tue, Apr 21 - Wed, Apr 29
AUS
Austin
STT
St. Thomas
$419 Roundtrip, found 8 hours ago
$419
Roundtrip
found 8 hours ago
Select Southwest Airlines flight, departing Tue, Apr 21 from Austin to St. Thomas, returning Wed, Apr 29, priced at $419 found 8 hours ago

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Prices were available within the past 7 days. Prices and availability are subject to change.

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

February is typically the cheapest month to fly

From $174 - $557 per traveler.

Frequently asked questions

How much does a flight from Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Thomas (STT-Cyril E. King) cost?
You can find cheap one-way flights from $82 and cheap return flights from $191 Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Thomas (STT-Cyril E. King) with Expedia. One-way flights usually range from $193 to $1003, and return flights typically cost between $418 and $2214. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Thomas (STT-Cyril E. King) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Thomas (STT-Cyril E. King)?
The cheapest month to fly from AUS to STT is March when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Thomas (STT-Cyril E. King)?
Enter AUS to STT and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Thomas (STT-Cyril E. King)?
Frontier Airlines is one of the cheapest airlines offering connecting flights from Austin-Bergstrom Intl. (AUS) to Cyril E. King (STT), with round-trip tickets starting from around $382. This flight has a layover in Philadelphia Intl. (PHL). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Thomas (STT-Cyril E. King)?
To find a cheap flight from Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Thomas (STT-Cyril E. King), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Thomas (STT-Cyril E. King)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Thomas (STT-Cyril E. King)?
The earliest flight from Austin-Bergstrom International Airport (AUS) to Cyril E. King Airport (STT) typically departs at around 5:00 AM, operated by American Airlines. This seasonal service is available in December, allowing you to start your day early and enjoy more time in St. Thomas. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Thomas (STT-Cyril E. King)?
The most popular departure times for flights from Austin-Bergstrom Intl. (AUS) to Cyril E. King (STT) are in the early morning, from 6am to 9am. About 40% of passengers prefer this time window. Many major carriers, including American Airlines, Delta, and United Airlines, offer flights during this window. This timing is popular because it allows you to arrive in St. Thomas with a full day to explore.
How long does it take to fly from Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Thomas (STT-Cyril E. King)?
Flying from AUS to STT with a connection usually takes about 7 hours 20 minutes, traveling roughly 2,207 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Thomas (STT-Cyril E. King)?
First class seats are offered on the AUS to STT route. First class cabins are available on:

  • United Airlines
  • Delta Air Lines
  • Spirit Airlines

How do I earn miles on a Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Thomas (STT-Cyril E. King) flight with Expedia?
It's easy to earn miles on a Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Thomas (STT-Cyril E. King) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for St. Thomas from Austin-Bergstrom Intl. (AUS)?
If you're planning to travel to St. Thomas from Austin-Bergstrom Intl. (AUS), you can fly into Cyril E. King (STT) Some flights may connect through major hubs like George Bush Intercontinental (IAH), Denver Intl. (DEN), Dallas-Fort Worth Intl. (DFW) before reaching St. Thomas. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Thomas (STT-Cyril E. King) at the last minute?
Typically, booking a last minute flight from Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Thomas (STT-Cyril E. King) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Thomas (STT-Cyril E. King) flight and hotel package?
Securing a Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Thomas (STT-Cyril E. King) St Thomas Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Thomas (STT-Cyril E. King)?
If you booked your Austin, TX (AUS-Austin-Bergstrom Intl.) to St. Thomas (STT-Cyril E. King) 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 have, 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
$191
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 March. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $82 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

*Flight schedules are subject to change.

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*Available to One Key members.