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

Flying on Spirit Airlines is currently your cheapest option to Saint Thomas Island, with prices starting at $291. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $349 and $506, respectively. Users have found that Spirit Airlines is 45% cheaper than the other options available to this destination.

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

Travelers seeking maximum savings on their San Antonio to Saint Thomas Island flight should consider departing on Monday afternoons when fares are most often at their lowest. Wednesday 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 San Antonio to Saint Thomas Island?

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

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

Travelers have found that booking a Sunday departure is the best way to save up to 68% 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 San Antonio to Saint Thomas Island?

Find a great deal and save up to 185% by booking at least 54 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from San Antonio to Saint Thomas Island within the next two weeks, with the cheapest ticket starting at $420.

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

The best pricing can be found in the month of August. Prices to Saint Thomas Island from San Antonio average $529. You can even find prices in August for less than $529, as users have found deals to Saint Thomas Island from as low as $200. The month of March appears to be one of the more expensive times to travel to Saint Thomas Island from San Antonio. Flying in the targeted month can save you up to 77%.

How can I find direct flights from San Antonio 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 San Antonio to Saint Thomas Island.

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

Yes. Cheapflights offers flight deals from San Antonio 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.

$291+ Flights from San Antonio to Saint Thomas Island

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from San Antonio to Saint Thomas Island with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from San Antonio to Saint Thomas Island Cyril E King are usually found in August or February, booked 53 days in advance, depart on a Monday or Sunday and return on a Tuesday

Cheap flight deals from San Antonio to Saint Thomas Island

Round-trip from	$291 (FlightHub)
Popular in	March
Cheapest in	August
Average price	$675

From San Antonio to Saint Thomas Island Cyril E King

Search Deals

Highest demand for flights based on searches. 15% potential increase in price ($98 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease ($38 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find flight deals from San Antonio to Saint Thomas Island

Cheapest flights from San Antonio to Saint Thomas Island
Explore the most affordable flight options available from San Antonio to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.

Fri 10/37:08 pmSAT - STT

1 stop13h 36mSpirit Airlines

Mon 10/610:49 amSTT - SAT

1 stop8h 14mSpirit Airlines

Deal found 6/30

$291

Tue 11/115:41 amSAT - STT

1 stop8h 09mAmerican Airlines

Tue 11/186:15 pmSTT - SAT

1 stop7h 11mAmerican Airlines

Deal found 6/30

$349

Sun 11/25:30 amSAT - STT

1 stop7h 00mUnited Airlines

Fri 11/71:02 pmSTT - SAT

1 stop9h 13mUnited Airlines

Deal found 6/30

$506

Best flights from San Antonio to Saint Thomas Island
Discover carefully curated flight deals from San Antonio to Saint Thomas Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 1, 2025.

Fri 10/37:08 pmSAT - STT

1 stop13h 36mSpirit Airlines

Mon 10/610:49 amSTT - SAT

1 stop8h 14mSpirit Airlines

Deal found 6/30

$291

Tue 11/117:30 pmSAT - STT

2 stops18h 20mAmerican Airlines

Tue 11/184:45 pmSTT - SAT

2 stops18h 42mAmerican Airlines

Deal found 6/30

$349

Sun 11/25:30 amSAT - STT

1 stop7h 00mUnited Airlines

Fri 11/71:02 pmSTT - SAT

1 stop9h 13mUnited Airlines

Deal found 6/30

$506

Last-minute flights from San Antonio to Saint Thomas Island
Discover last-minute flight deals from San Antonio to Saint Thomas Island. Data last updated July 1, 2025 and is based on user searches.

Mon 7/75:25 amSAT - STT

1 stop8h 35mDelta

Thu 7/103:02 pmSTT - SAT

1 stop8h 15mDelta

Deal found 6/30

$799

Mon 7/75:30 amSAT - STT

1 stop9h 13mUnited Airlines

Thu 7/104:45 pmSTT - SAT

2 stops20h 00mUnited Airlines

Deal found 6/30

$894

Mon 7/148:21 pmSAT - STT

2 stops18h 34mAmerican Airlines

Thu 7/174:02 pmSTT - SAT

1 stop17h 59mAmerican Airlines

Deal found 7/1

$349

Mon 7/217:45 amSAT - STT

1 stop6h 25mSpirit Airlines

Fri 7/2510:43 amSTT - SAT

1 stop12h 59mSpirit Airlines

Deal found 6/29

$307

Mon 8/115:30 amSAT - STT

1 stop9h 13mUnited Airlines

Fri 8/154:45 pmSTT - SAT

2 stops20h 00mUnited Airlines

Deal found 7/1

$760

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Fri 10/3

7:08 pm-9:44 am

1 stop13h 36m

Saint Thomas Island Cyril E King

Mon 10/6

10:49 am-6:03 pm

1 stop8h 14m

$291

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Tue 11/11

5:41 am-3:50 pm

1 stop8h 09m

Saint Thomas Island Cyril E King

Tue 11/18

6:15 pm-11:26 pm

1 stop7h 11m

$349

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Sun 11/2

5:30 am-2:30 pm

1 stop7h 00m

Saint Thomas Island Cyril E King

Fri 11/7

1:02 pm-8:15 pm

1 stop9h 13m

$506

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Best time to book a flight from San Antonio to Saint Thomas Island

Have a flexible travel schedule? Discover the best time to fly to Saint Thomas Island from San Antonio 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 San Antonio to Saint Thomas Island

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

The best time to book flights from San Antonio to Saint Thomas Island is 53 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, September is the cheapest month in which you can book a flight from San Antonio to Saint Thomas Island (average of $433). Flying from San Antonio 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 SAT to STT?

One of the essential ways to save on airfare from San Antonio to Saint Thomas Island is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 48% on airfare.

How much does it cost to fly round-trip from San Antonio to Saint Thomas Island?

Reviews of airlines servicing Saint Thomas Island

Read through reviews of airlines operating flights from San Antonio to Saint Thomas Island, such as United Airlines, American Airlines, and Spirit Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,858 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

United Airlines

7.4

Good

8,858 reviews

United Airlines

7.4

Good

8,858 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

American Airlines

7.2

Good

10,000 reviews

United Airlines

7.4

Good

8,858 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Spirit Airlines

6.3

Okay

8,101 reviews

United Airlines

7.4

Good

8,858 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

What are the cheapest airlines flying from San Antonio to Saint Thomas Island round-trip?
Flying on Spirit Airlines is currently your cheapest option to Saint Thomas Island, with prices starting at $291. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $349 and $506, respectively. Users have found that Spirit Airlines is 45% cheaper than the other options available to this destination.
Can I find deals for flights from San Antonio to Saint Thomas Island that include hotel bookings?
Yes. In addition to deals on San Antonio to Saint Thomas Island flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Antonio 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 San Antonio to Saint Thomas Island.
Can I find deals for business class flights from San Antonio to Saint Thomas Island?
Yes. Cheapflights offers flight deals from San Antonio 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 San Antonio to Saint Thomas Island?
Currently, September is the cheapest month in which you can book a flight from San Antonio to Saint Thomas Island (average of $433). Flying from San Antonio 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 San Antonio to Saint Thomas Island

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$193	Average$373	FlexibilityNo cancel fee	On-time65%
American Airlines	Cheapest$217	Average$573	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$277	Average$538	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$287	Average$601	FlexibilityNo cancel fee	On-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$291+ Cheap flights from San Antonio (SAT) to Saint Thomas Island (STT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Antonio 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 San Antonio to Saint Thomas Island Cyril E King are usually found in August or February, booked 53 days in advance, depart on a Monday or Sunday and return on a Tuesday

Cheap flight deals from San Antonio to Saint Thomas Island

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from San Antonio to Saint Thomas Island

Cheapest flights from San Antonio to Saint Thomas IslandExplore the most affordable flight options available from San Antonio to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.

Explore the most affordable flight options available from San Antonio to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from San Antonio to Saint Thomas Island

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

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from San Antonio to Saint Thomas Island. Price data was last updated on June 27, 2025.

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

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

Find hourly flight availability from San Antonio 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 July 1, 2025.

How much does it cost to fly round-trip from San Antonio to Saint Thomas Island?

Reviews of airlines servicing Saint Thomas Island

Read through reviews of airlines operating flights from San Antonio to Saint Thomas Island, such as United Airlines, American Airlines, and Spirit Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from San Antonio 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 San Antonio to Saint Thomas Island round-trip?

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

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

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

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

Traveling to a place near San Antonio?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Antonio to Saint Thomas Island

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from San Antonio to Saint Thomas Island

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from San Antonio to Saint Thomas Island
Explore the most affordable flight options available from San Antonio to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.