What are the cheapest airlines flying from Austin to Saint Thomas Island round-trip?

Cheapflights users have booked flights from Austin to Saint Thomas Island round-trip from $207. Other airlines that can offer you cheap pricing are United Airlines, from $360, and American Airlines, from $428. Users have found that Spirit Airlines is 63% cheaper than the other options available to this destination.

What is the cheapest day to fly from Austin to Saint Thomas Island?

Travelers seeking maximum savings on their Austin to Saint Thomas Island flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from Austin to Saint Thomas Island?

American Airlines, Delta and Spirit Airlines are the most popular airlines when flying from Austin to Saint Thomas Island.

What is the cheapest day to fly round-trip from Austin to Saint Thomas Island?

Travelers have found that booking a Saturday departure is the best way to save up to 26% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

How far in advance should I book a flight from Austin to Saint Thomas Island?

To save on the cost of your flight from Austin to Saint Thomas Island, book at least 21 days before your planned departure. Booking around this time can save you about 200% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $681 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $799.

What is the cheapest month to fly from Austin to Saint Thomas Island?

September is one of the best times of the year to fly to Saint Thomas Island from Austin. Prices for September average $573 per person but you can even find prices for as low as $425. The most expensive prices can be found in the month of June. Opting for a September flight can save you 19% on your journey compared to booking in June

Can I find deals for flights from Austin to Saint Thomas Island that include hotel bookings?

Yes. In addition to deals on Austin to Saint Thomas Island flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Austin to Saint Thomas Island?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Austin to Saint Thomas Island.

Can I find deals for business class flights from Austin to Saint Thomas Island?

Yes. Cheapflights offers flight deals from Austin to Saint Thomas Island by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$118+ Flights from Austin to Saint Thomas Island

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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Austin Bergstrom to Saint Thomas Island Cyril E King are usually found in September or October, booked 20 days in advance, depart on a Sunday or Friday and return on a Monday

Cheap flight deals from Austin to Saint Thomas Island

Round-trip from	$241 (FlightHub)
One-way from	$118 (FlightHub)
Popular in	June
Cheapest in	September
Average price	$622

From Austin Bergstrom to Saint Thomas Island Cyril E King

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One-way flight from Austin Bergstrom to Saint Thomas Island Cyril E King

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Highest demand for flights based on searches. 6% potential increase in price ($39 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Find flight deals from Austin to Saint Thomas Island

Cheapest flights from Austin to Saint Thomas Island
Explore the most affordable flight options available from Austin to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Sun 10/54:30 pmAUS - STT

1 stop16h 26mSpirit Airlines

Thu 10/911:01 amSTT - AUS

1 stop13h 55mSpirit Airlines

Deal found 8/14

$241

Wed 9/105:45 amAUS - STT

1 stop26h 59mSpirit Airlines

Tue 9/1610:49 amSTT - AUS

1 stop11h 50mSpirit Airlines

Deal found 8/13

$256

Sun 10/124:30 pmAUS - STT

1 stop16h 26mSpirit Airlines

Sun 10/1911:01 amSTT - AUS

1 stop13h 55mSpirit Airlines

Deal found 8/14

$261

Sun 9/215:45 amAUS - STT

1 stop26h 59mSpirit Airlines

Sat 9/2710:49 amSTT - AUS

1 stop13h 13mSpirit Airlines

Deal found 8/14

$273

Fri 10/3111:02 amAUS - STT

2 stops24h 57mSpirit Airlines

Wed 11/51:33 pmSTT - AUS

1 stop11h 39mSpirit Airlines

Deal found 8/14

$279

Thu 10/94:30 pmAUS - STT

1 stop16h 26mSpirit Airlines

Mon 10/1311:01 amSTT - AUS

1 stop13h 55mSpirit Airlines

Deal found 8/13

$281

Thu 10/304:30 pmAUS - STT

1 stop16h 26mSpirit Airlines

Mon 11/311:56 amSTT - AUS

2 stops47h 34mSpirit Airlines

Deal found 8/13

$302

Best flights from Austin to Saint Thomas Island
Discover carefully curated flight deals from Austin to Saint Thomas Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 14, 2025.

Sun 10/54:30 pmAUS - STT

1 stop16h 26mSpirit Airlines

Thu 10/911:01 amSTT - AUS

1 stop13h 55mSpirit Airlines

Deal found 8/14

$241

Thu 10/304:30 pmAUS - STT

1 stop16h 26mSpirit Airlines

Mon 11/311:56 amSTT - AUS

1 stop14h 00mSpirit Airlines

Deal found 8/13

$241

Wed 9/105:45 amAUS - STT

1 stop26h 59mSpirit Airlines

Tue 9/1610:49 amSTT - AUS

1 stop11h 50mSpirit Airlines

Deal found 8/13

$256

Sun 10/124:30 pmAUS - STT

1 stop16h 26mSpirit Airlines

Sun 10/1911:01 amSTT - AUS

1 stop13h 55mSpirit Airlines

Deal found 8/14

$261

Sun 9/215:45 amAUS - STT

1 stop26h 59mSpirit Airlines

Sat 9/2710:49 amSTT - AUS

1 stop13h 13mSpirit Airlines

Deal found 8/14

$273

Fri 10/316:00 amAUS - STT

1 stop26h 56mSpirit Airlines

Wed 11/51:33 pmSTT - AUS

1 stop11h 39mSpirit Airlines

Deal found 8/14

$273

Thu 10/94:30 pmAUS - STT

1 stop16h 26mSpirit Airlines

Mon 10/1311:01 amSTT - AUS

1 stop13h 55mSpirit Airlines

Deal found 8/13

$281

Last-minute flights from Austin to Saint Thomas Island
Discover last-minute flight deals from Austin to Saint Thomas Island. Data last updated August 14, 2025 and is based on user searches.

Sat 8/237:15 amAUS - STT

1 stop26h 58mSpirit Airlines

Sat 8/3012:18 pmSTT - AUS

1 stop13h 41mSpirit Airlines

Deal found 8/13

$445

Thu 8/287:15 amAUS - STT

1 stop26h 58mSpirit Airlines

Mon 9/14:24 pmSTT - AUS

2 stops53h 21mSpirit Airlines

Deal found 8/13

$444

Fri 8/297:15 amAUS - STT

1 stop26h 58mSpirit Airlines

Sun 9/710:49 amSTT - AUS

1 stop13h 13mSpirit Airlines

Deal found 8/14

$397

Wed 9/105:45 amAUS - STT

1 stop26h 59mSpirit Airlines

Tue 9/1610:49 amSTT - AUS

1 stop11h 50mSpirit Airlines

Deal found 8/13

$256

Sun 9/215:45 amAUS - STT

1 stop26h 59mSpirit Airlines

Sat 9/2710:49 amSTT - AUS

1 stop13h 13mSpirit Airlines

Deal found 8/14

$273

One-way flights from Austin to Saint Thomas Island
Search for one-way flight options from Austin to Saint Thomas Island. Find affordable one-way fares based on user searches. Data last updated August 14, 2025.

Thu 10/304:30 pmAUS - STT

1 stop16h 26mSpirit Airlines

Deal found 8/13

$118

Mon 12/18:48 pmAUS - STT

1 stop16h 23mSpirit Airlines

Deal found 8/12

$299

Mon 12/18:30 pmAUS - STT

2 stops18h 25mAmerican Airlines

Deal found 8/12

$322

Tue 11/46:00 amAUS - STT

3 stops29h 12mUnited Airlines

Deal found 8/14

$421

Thu 10/301:00 pmAUS - STT

3 stops22h 12mUnited Airlines

Deal found 8/13

$467

Mon 12/15:22 pmAUS - STT

3 stops19h 49mMultiple Airlines

Deal found 8/12

$608

Cheapflights Fare Finder

Use the filters below to find and compare flights from Austin to Saint Thomas Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

AustinSaint Thomas Island

AUS - STT

AUSSTT

Austin Bergstrom

Sun 10/5

4:30 pm-9:56 am

1 stop16h 26m

Saint Thomas Island Cyril E King

Thu 10/9

11:01 am-11:56 pm

1 stop13h 55m

$241

AustinSaint Thomas Island

AUS - STT

AUSSTT

Austin Bergstrom

Thu 10/30

4:30 pm-9:56 am

1 stop16h 26m

Saint Thomas Island Cyril E King

Mon 11/3

11:56 am-11:56 pm

1 stop14h 00m

$241

AustinSaint Thomas Island

AUS - STT

AUSSTT

Austin Bergstrom

Wed 9/10

5:45 am-9:44 am

1 stop26h 59m

Saint Thomas Island Cyril E King

Tue 9/16

10:49 am-9:39 pm

1 stop11h 50m

$256

AustinSaint Thomas Island

AUS - STT

AUSSTT

Austin Bergstrom

Sun 10/12

4:30 pm-9:56 am

1 stop16h 26m

Saint Thomas Island Cyril E King

Sun 10/19

11:01 am-11:56 pm

1 stop13h 55m

$261

AustinSaint Thomas Island

AUS - STT

AUSSTT

Austin Bergstrom

Sun 9/21

5:45 am-9:44 am

1 stop26h 59m

Saint Thomas Island Cyril E King

Sat 9/27

10:49 am-11:02 pm

1 stop13h 13m

$273

AustinSaint Thomas Island

AUS - STT

AUSSTT

Austin Bergstrom

Fri 10/31

6:00 am-9:56 am

1 stop26h 56m

Saint Thomas Island Cyril E King

Wed 11/5

1:33 pm-11:12 pm

1 stop11h 39m

$273

AustinSaint Thomas Island

AUS - STT

AUSSTT

Austin Bergstrom

Thu 10/9

4:30 pm-9:56 am

1 stop16h 26m

Saint Thomas Island Cyril E King

Mon 10/13

11:01 am-11:56 pm

1 stop13h 55m

$281

AustinSaint Thomas Island

AUS - STT

AUSSTT

Austin Bergstrom

Thu 10/30

4:30 pm-9:56 am

1 stop16h 26m

$118

AustinSaint Thomas Island

AUS - STT

AUSSTT

Austin Bergstrom

Mon 12/1

8:48 pm-3:11 pm

1 stop16h 23m

$299

AustinSaint Thomas Island

AUS - STT

AUSSTT

Austin Bergstrom

Mon 12/1

8:30 pm-4:55 pm

2 stops18h 25m

$322

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 13 results

Best time to book a flight from Austin to Saint Thomas Island

Have a flexible travel schedule? Discover the best time to fly to Saint Thomas Island from Austin with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Austin to Saint Thomas Island

How far ahead should I book a flight from Austin to Saint Thomas Island?

The price you pay for your flight from Austin to Saint Thomas Island may vary depending on when you book. For the best chance of a lower fare, look to book 20 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Austin to Saint Thomas Island?

Currently, September is the cheapest month in which you can book a flight from Austin to Saint Thomas Island (average of $433). Flying from Austin to Saint Thomas Island in June is currently the most expensive (average of $648). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from AUS to STT?

It’s optimal to fly from Austin to Saint Thomas Island at noon. By choosing this option you can save up to 48% on the cost of your flight, compared to a flight in the morning.

Reviews of airlines servicing Saint Thomas Island

Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Austin to Saint Thomas Island by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,980 reviews

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,916 reviews

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Spirit Airlines

6.3

Okay

8,045 reviews

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines flying from Austin to Saint Thomas Island round-trip?
Cheapflights users have booked flights from Austin to Saint Thomas Island round-trip from $207. Other airlines that can offer you cheap pricing are United Airlines, from $360, and American Airlines, from $428. Users have found that Spirit Airlines is 63% cheaper than the other options available to this destination.
Can I find deals for flights from Austin to Saint Thomas Island that include hotel bookings?
Yes. In addition to deals on Austin to Saint Thomas Island flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Austin to Saint Thomas Island?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Austin to Saint Thomas Island.
Can I find deals for business class flights from Austin to Saint Thomas Island?
Yes. Cheapflights offers flight deals from Austin to Saint Thomas Island by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Austin to Saint Thomas Island?
Currently, September is the cheapest month in which you can book a flight from Austin to Saint Thomas Island (average of $433). Flying from Austin to Saint Thomas Island in June is currently the most expensive (average of $648). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

St. John

Browse thousands of different options on Cheapflights for your next trip

Top 4 airlines flying from Austin to Saint Thomas Island

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$207	Average$355	FlexibilityNo cancel fee	On-time65%
United Airlines	Cheapest$360	Average$729	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$428	Average$595	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$459	Average$670	FlexibilityNo cancel fee	On-timeN/A

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$118+ Cheap flights from Austin (AUS) to Saint Thomas Island (STT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/30. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Austin to Saint Thomas Island with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Austin Bergstrom to Saint Thomas Island Cyril E King are usually found in September or October, booked 20 days in advance, depart on a Sunday or Friday and return on a Monday

Cheap flight deals from Austin to Saint Thomas Island

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Austin to Saint Thomas Island

Cheapest flights from Austin to Saint Thomas IslandExplore the most affordable flight options available from Austin to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Explore the most affordable flight options available from Austin to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Austin to Saint Thomas Island that are best for you.

Best time to book a flight from Austin to Saint Thomas Island

Have a flexible travel schedule? Discover the best time to fly to Saint Thomas Island from Austin with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Austin to Saint Thomas Island

How far ahead should I book a flight from Austin to Saint Thomas Island?

Use this chart to determine the optimal time to book a round-trip flight from Austin to Saint Thomas Island. Price data was last updated on August 8, 2025.

What is the cheapest month to book a flight from Austin to Saint Thomas Island?

What is the cheapest time of day to fly from AUS to STT?

Find hourly flight availability from Austin to Saint Thomas Island. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

Reviews of airlines servicing Saint Thomas Island

Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Austin to Saint Thomas Island by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Austin to Saint Thomas Island. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Austin to Saint Thomas Island round-trip?

Can I find deals for flights from Austin to Saint Thomas Island that include hotel bookings?

How can I find direct flights from Austin to Saint Thomas Island?

Can I find deals for business class flights from Austin to Saint Thomas Island?

What is the cheapest month to book a flight from Austin to Saint Thomas Island?

Traveling to a place near Saint Thomas Island?

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Alternative routes for Austin to Saint Thomas Island

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Top 4 airlines flying from Austin to Saint Thomas Island

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Cheapest flights from Austin to Saint Thomas Island
Explore the most affordable flight options available from Austin to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.