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South Padre Island

$199+ Cheap flights from St. Louis (STL) to South Padre Island, TX

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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MFE
Apr 1 — Apr 81
Tue 4/1
Tue 4/8
1 adult, Economy
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Cheap 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 March 27, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$320
(United Airlines)

Popular in

September

Cheapest in

October

Average price

$458
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. 1% potential increase in price ($7 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from St. Louis to South Padre Island

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 March 27, 2025.

This American Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/245:19 amSTL - BRO
1 stop4h 51mAmerican Airlines
Sat 5/315:33 amBRO - STL
1 stop4h 21mAmerican Airlines
Deal found 3/24$199
This United Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/106:15 amSTL - BRO
1 stop5h 11mUnited Airlines
Mon 4/147:00 amBRO - STL
2 stops8h 47mUnited Airlines
Deal found 3/26$320

Cheapflights Fare Finder

Customize your flight search to find flights from St. Louis to South Padre Island that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 27, 2025.
Use the filters below to find and compare flights from St. Louis to South Padre Island that are best for you.

Fly from

St. Louis

Fly to

South Padre Island

Route

Depart

Return

Price

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Sat 5/24

5:19 am-10:10 am

1 stop4h 51m

Brownsville South Padre Is. Intl

Sat 5/31

5:33 am-9:54 am

1 stop4h 21m

$199

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Thu 4/10

6:15 am-11:26 am

1 stop5h 11m

Brownsville South Padre Is. Intl

Mon 4/14

7:00 am-3:47 pm

2 stops8h 47m

$320

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

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.
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

What is the cheapest month to book a flight from St. Louis to South Padre Island?

Currently, September is the cheapest month in which you can book a flight from St. Louis to South Padre Island (average of $281). Flying from St. Louis to South Padre Island in December is currently the most expensive (average of $416). 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 STL to SO9?

Find hourly flight availability from St. Louis to South Padre Island. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 27, 2025.

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.

Rainfall in South Padre Island by month

Plan your trip to South Padre Island by taking into account the average rainfall totals by month.

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.

Temperature in South Padre Island by month

Plan your trip to South Padre Island by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing South Padre Island

Get insights into the airlines that provide service to South Padre Island. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to South Padre Island. Reviews last updated March 27, 2025.
United Airlines
7.4
Good
8,603 reviews

Entertainment

7.0

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,603 reviews
United Airlines
7.4
Good
8,603 reviews

Entertainment

7.0

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,603 reviews

Entertainment

7.0

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

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?

    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. 4 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.

  • What is the cheapest month to book a flight from St. Louis to South Padre Island?

    Currently, September is the cheapest month in which you can book a flight from St. Louis to South Padre Island (average of $281). Flying from St. Louis to South Padre Island in December is currently the most expensive (average of $416). 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

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Top 4 airlines flying from St. Louis to South Padre Island

Discover the top 4 airlines that operate flights from St. Louis to South Padre Island. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$196Average$313FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$197Average$412FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$208Average$376FlexibilityNo cancel feeOn-time71%
DeltaCheapest$329Average$421FlexibilityNo cancel feeOn-timeN/A
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