How long is the flight from St. Louis to South Padre Island?

American Airlines and United Airlines can get you from St. Louis to South Padre Island in just under 4h 25m. Your travel time can differ by up to 22m. There are 977 mi between St. Louis and South Padre Island. Both multi-stop and nonstop flights can be found to your destination and back.

In terms of precipitation, rainfall in South Padre Island ranges from 1.1 - 5.9 inches per month. September is typically the wettest month, when rainfall can reach 5.9 in. February is typically the driest time to visit South Padre Island when rainfall is around 1.1 in.

If weather is an important factor for your trip to South Padre Island, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 60.8 F).

What is the cheapest time of day to fly from STL to SO9?

When flying from St. Louis to South Padre Island, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly from for flights from St. Louis to South Padre Island?

For a flight from St. Louis to South Padre Island, you will be flying from Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 0 outbound flights to South Padre Island per day. 3 airlines have flights to South Padre Island from Lambert-St Louis on a regular basis.

Can I find deals for flights from St. Louis to South Padre Island that include hotel bookings?

Yes. In addition to deals on St. Louis to South Padre Island flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from St. Louis to South Padre Island?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to South Padre Island.

Can I find deals for business class flights from St. Louis to South Padre Island?

Yes. Cheapflights offers flight deals from St. Louis to South Padre 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.

$305+ Cheap Flights from St. Louis to South Padre Island

Q: How much does it cost to fly round-trip from St. Louis to South Padre Island?

Airfare is below average for this route at the moment. St. Louis to South Padre Island flights typically cost between $478 and $307 in September. The cheapest round-trip price found within the last 3 days was $339 on American Airlines (Sep 10-Sep 14).

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Cheap flight deals from St. Louis to South Padre Island

Cheapest

Best

Last-minute

One-way

Cheapest flights from St. Louis to South Padre Island
Explore the most affordable flight options available from St. Louis to South Padre Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 10, 2026.

Thu 9/105:40 am

STL

BRO

1 stop4h 25m

American Airlines

Mon 9/146:43 pm

BRO

STL

1 stop4h 58m

American Airlines

Deal found 5/5

$339

Sun 5/315:25 am

STL

BRO

1 stop4h 49m

American Airlines

Wed 6/36:42 pm

BRO

STL

1 stop5h 17m

American Airlines

Deal found 5/8

$389

Tue 8/2511:10 am

STL

BRO

1 stop4h 47m

United Airlines

Sat 8/294:39 pm

BRO

STL

1 stop5h 37m

United Airlines

Deal found 5/6

$419

Sun 5/249:41 am

STL

BRO

1 stop4h 36m

American Airlines

Thu 5/286:42 pm

BRO

STL

1 stop5h 17m

American Airlines

Deal found 5/9

$429

Last-minute flights from St. Louis to South Padre Island
Discover last-minute flight deals from St. Louis to South Padre Island. Data last updated May 10, 2026 and is based on user searches.

Sun 5/249:41 am

STL

BRO

1 stop4h 36m

American Airlines

Thu 5/286:42 pm

BRO

STL

1 stop5h 17m

American Airlines

Deal found 5/9

$429

Sun 5/315:25 am

STL

BRO

1 stop4h 49m

American Airlines

Wed 6/36:42 pm

BRO

STL

1 stop5h 17m

American Airlines

Deal found 5/8

$389

Fri 6/55:30 am

STL

BRO

1 stop4h 44m

American Airlines

Fri 6/126:42 pm

BRO

STL

1 stop5h 17m

American Airlines

Deal found 5/8

$349

Thu 6/185:29 am

STL

BRO

1 stop4h 45m

American Airlines

Sun 6/216:42 pm

BRO

STL

1 stop5h 17m

American Airlines

Deal found 5/6

$538

Thu 6/186:00 am

STL

BRO

2 stops12h 44m

United Airlines

Sun 6/217:20 am

BRO

STL

2 stops8h 26m

United Airlines

Deal found 5/6

$798

Mon 6/225:29 am

STL

BRO

1 stop4h 45m

American Airlines

Thu 6/252:47 pm

BRO

STL

1 stop6h 50m

American Airlines

Deal found 5/8

$553

Find flight deals from St. Louis to South Padre Island

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$339 (American Airlines)
Popular in	December
Cheapest in	February
Average price	$338

Provider with most accurate pricing for Lambert-St Louis-Brownsville South Padre Is. Intl flight deals.

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Provider most trusted by Cheapflights users for Lambert-St Louis-Brownsville South Padre Is. Intl flights.

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From Lambert-St Louis to South Padre Island

Search Deals

Highest demand for flights based on searches. 22% potential increase in price ($115 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in May 2026

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Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to South Padre Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Thu 9/10

5:40 am-10:05 am

1 stop4h 25m

Brownsville South Padre Is. Intl

Mon 9/14

6:43 pm-11:41 pm

1 stop4h 58m

$339

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Tue 8/25

11:10 am-3:57 pm

1 stop4h 47m

Brownsville South Padre Is. Intl

Sat 8/29

4:39 pm-10:16 pm

1 stop5h 37m

$419

Cheapest one-way

Quickest one-way

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Fri 5/15

12:27 pm-7:11 pm

1 stop6h 44m

$305

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Fri 5/15

8:45 am-6:28 pm

2 stops9h 43m

$310

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/9

Sorted by cheapest first

Best time to book a flight from St. Louis to South Padre Island

Have a flexible travel schedule? Discover the best time to fly to South Padre Island from St. Louis with our price prediction graph.

STL-BRO

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 St. Louis to South Padre Island

STL-SO9

STL-BRO

How much does it cost to fly round-trip from St. Louis to South Padre Island?

Reviews of airlines servicing South Padre Island

See what other customers who have flown with United Airlines and American Airlines from St. Louis to South Padre Island have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

9,694 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

United Airlines

7.4

Good

9,694 reviews

United Airlines

7.4

Good

9,694 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

American Airlines

7.1

Good

11,667 reviews

United Airlines

7.4

Good

9,694 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Related info for your journey

What airport do you fly from for flights from St. Louis to South Padre Island?
For a flight from St. Louis to South Padre Island, you will be flying from Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 0 outbound flights to South Padre Island per day. 3 airlines have flights to South Padre Island from Lambert-St Louis on a regular basis.
How long is the flight from St. Louis to South Padre Island?
American Airlines and United Airlines can get you from St. Louis to South Padre Island in just under 4h 25m. Your travel time can differ by up to 22m. There are 977 mi between St. Louis and South Padre Island. Both multi-stop and nonstop flights can be found to your destination and back.
Can I find deals for flights from St. Louis to South Padre Island that include hotel bookings?
Yes. In addition to deals on St. Louis to South Padre Island flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to South Padre Island?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to South Padre Island.
Can I find deals for business class flights from St. Louis to South Padre Island?
Yes. Cheapflights offers flight deals from St. Louis to South Padre 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.

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Top 3 airlines flying from St. Louis to South Padre Island

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$196	Average$435	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$216	Average$347	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$258	Average$335	FlexibilityNo cancel fee	On-time69%

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$305+ Cheap flights from St. Louis (STL) to South Padre Island, TX

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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to South Padre Island with Cheapflights

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Cheap flight deals from St. Louis to South Padre Island

Cheapest flights from St. Louis to South Padre IslandExplore the most affordable flight options available from St. Louis to South Padre Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 10, 2026.

Explore the most affordable flight options available from St. Louis to South Padre Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 10, 2026.

Best flights from St. Louis to South Padre IslandDiscover carefully curated flight deals from St. Louis to South Padre Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 10, 2026.

Discover carefully curated flight deals from St. Louis to South Padre Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 10, 2026.

Last-minute flights from St. Louis to South Padre IslandDiscover last-minute flight deals from St. Louis to South Padre Island. Data last updated May 10, 2026 and is based on user searches.

Discover last-minute flight deals from St. Louis to South Padre Island. Data last updated May 10, 2026 and is based on user searches.

One-way flights from St. Louis to South Padre IslandSearch for one-way flight options from St. Louis to South Padre Island. Find affordable one-way fares based on user searches. Data last updated May 10, 2026.

Search for one-way flight options from St. Louis to South Padre Island. Find affordable one-way fares based on user searches. Data last updated May 10, 2026.

Find flight deals from St. Louis to South Padre Island

Keep the following information in mind while searching for St. Louis to South Padre Island flight deals. Data was last updated May 10, 2026.

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Round-trip from

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Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to South Padre Island that are best for you.

Best time to book a flight from St. Louis to South Padre Island

Have a flexible travel schedule? Discover the best time to fly to South Padre Island from St. Louis with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to South Padre Island

How much does it cost to fly round-trip from St. Louis to South Padre Island?

Reviews of airlines servicing South Padre Island

See what other customers who have flown with United Airlines and American Airlines from St. Louis to South Padre Island have to say. You can also see how each airline compares 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 St. Louis to South Padre Island. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from St. Louis to South Padre Island?

How long is the flight from St. Louis to South Padre Island?

Can I find deals for flights from St. Louis to South Padre Island that include hotel bookings?

How can I find direct flights from St. Louis to South Padre Island?

Can I find deals for business class flights from St. Louis to South Padre Island?

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Alternative routes for St. Louis to South Padre Island

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Complete your trip

Complete your trip to South Padre Island by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from St. Louis to South Padre Island by cabin class

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St. Louis and South Padre Island flights

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St. Louis to South Padre Island flights

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Top 3 airlines flying from St. Louis to South Padre Island

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Cheapest flights from St. Louis to South Padre Island
Explore the most affordable flight options available from St. Louis to South Padre Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 10, 2026.

Best flights from St. Louis to South Padre Island
Discover carefully curated flight deals from St. Louis to South Padre Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 10, 2026.

Last-minute flights from St. Louis to South Padre Island
Discover last-minute flight deals from St. Louis to South Padre Island. Data last updated May 10, 2026 and is based on user searches.

One-way flights from St. Louis to South Padre Island
Search for one-way flight options from St. Louis to South Padre Island. Find affordable one-way fares based on user searches. Data last updated May 10, 2026.