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Brownsville

$309+ Cheap flights from St. Louis to Brownsville (STL - BRO)

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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BRO
Aug 23 — Aug 301
Sun 8/23
Sun 8/30
1 adult, Economy
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Cheap flight deals from St. Louis to Brownsville

Cheapest flights from St. Louis to Brownsville
Explore the most affordable flight options available from St. Louis to Brownsville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 24, 2026.

This American Airlines deal was found by Cheapflights users on 7/19. 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.
Mon 8/245:42 am
STL
-
BRO
1 stop4h 31m
American Airlines
Sun 8/305:43 am
BRO
-
STL
1 stop6h 32m
American Airlines
Deal found 7/19$319
This United Airlines deal was found by Cheapflights users on 7/19. 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.
Wed 10/218:30 am
STL
-
BRO
2 stops9h 43m
United Airlines
Sat 10/247:15 am
BRO
-
STL
1 stop6h 55m
United Airlines
Deal found 7/19$324
This United Airlines deal was found by Cheapflights users on 7/21. 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 8/276:00 am
STL
-
BRO
2 stops9h 51m
United Airlines
Sun 8/307:15 am
BRO
-
STL
1 stop7h 00m
United Airlines
Deal found 7/21$334
This United Airlines deal was found by Cheapflights users on 7/20. 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.
Tue 8/411:10 am
STL
-
BRO
1 stop4h 47m
United Airlines
Sat 8/89:20 am
BRO
-
STL
2 stops12h 06m
United Airlines
Deal found 7/20$340
This American Airlines deal was found by Cheapflights users on 7/23. 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.
Fri 8/76:36 am
STL
-
BRO
1 stop7h 31m
American Airlines
Tue 8/116:37 pm
BRO
-
STL
1 stop5h 05m
American Airlines
Deal found 7/23$362
This American Airlines deal was found by Cheapflights users on 7/22. 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.
Thu 8/65:42 am
STL
-
BRO
1 stop4h 31m
American Airlines
Mon 8/106:37 pm
BRO
-
STL
1 stop5h 05m
American Airlines
Deal found 7/22$369
This United Airlines deal was found by Cheapflights users on 7/19. 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.
Mon 8/243:13 pm
STL
-
BRO
1 stop6h 46m
United Airlines
Sun 8/307:15 am
BRO
-
STL
2 stops8h 23m
United Airlines
Deal found 7/19$387
This United Airlines deal was found by Cheapflights users on 7/21. 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.
Sat 11/212:56 pm
STL
-
BRO
1 stop6h 55m
United Airlines
Thu 11/264:38 pm
BRO
-
STL
1 stop5h 42m
United Airlines
Deal found 7/21$395
This United Airlines deal was found by Cheapflights users on 7/20. 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.
Sat 9/193:13 pm
STL
-
BRO
1 stop6h 46m
United Airlines
Tue 9/2212:05 pm
BRO
-
STL
1 stop6h 26m
United Airlines
Deal found 7/20$399

Find flight deals from St. Louis to Brownsville

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Brownsville (BRO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$319
(American Airlines)

One-way from

$309
(American Airlines)

Popular in

December

Cheapest in

February

Average price

$510
Provider with most accurate pricing for Lambert-St Louis-Brownsville South Padre Is. Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Brownsville South Padre Is. Intl flights.
Search Deals
From Lambert-St Louis to Brownsville South Padre Is. Intl
Search Deals
One-way flight from Lambert-St Louis to Brownsville South Padre Is. Intl
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($86 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Brownsville 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 July 24, 2026.
Use the filters below to find and compare flights from St. Louis to Brownsville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Tue 8/4

11:10 am-3:57 pm

1 stop4h 47m

Brownsville South Padre Is. Intl

Sat 8/8

9:20 am-9:26 pm

2 stops12h 06m

$340
Quickest round-trip

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Fri 8/7

6:36 am-2:07 pm

1 stop7h 31m

Brownsville South Padre Is. Intl

Tue 8/11

6:37 pm-11:42 pm

1 stop5h 05m

$362

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Mon 8/24

3:13 pm-9:59 pm

1 stop6h 46m

Brownsville South Padre Is. Intl

Sun 8/30

7:15 am-3:38 pm

2 stops8h 23m

$387

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Sat 9/19

3:13 pm-9:59 pm

1 stop6h 46m

Brownsville South Padre Is. Intl

Tue 9/22

12:05 pm-6:31 pm

1 stop6h 26m

$399

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Thu 9/10

8:00 am-6:13 pm

2 stops10h 13m

Brownsville South Padre Is. Intl

Mon 9/14

9:20 am-11:38 pm

2 stops14h 18m

$409

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Sat 11/21

2:56 pm-9:51 pm

1 stop6h 55m

Brownsville South Padre Is. Intl

Thu 11/26

9:20 am-4:56 pm

2 stops7h 36m

$467
Cheapest one-way
Quickest one-way

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Fri 8/14

8:36 am-2:07 pm

1 stop5h 31m

$309

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Fri 8/14

7:25 am-6:13 pm

2 stops10h 48m

$314

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Fri 8/14

6:34 am-12:50 pm

3 stops30h 16m

$713

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

Sorted by cheapest first

Compare providers for flights from St. Louis to Brownsville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Brownsville in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Brownsville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Brownsville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Brownsville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Brownsville flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Brownsville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Brownsville

Have a flexible travel schedule? Discover the best time to fly to Brownsville 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.

Reviews of airlines servicing Brownsville

Get insights into the airlines that provide service to Brownsville. 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 Brownsville. Reviews last updated July 24, 2026.
Read through reviews of airlines operating flights from St. Louis to Brownsville, such as United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,026 reviews

Food

6.6

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Isaac,May 2024

SHV - IAH

Flight from shv was great. My connecting flight was canceled though. Had to stay overnight in airport
United Airlines
7.4
Good
10,026 reviews
United Airlines
7.4
Good
10,026 reviews

Food

6.6

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Isaac,May 2024

SHV - IAH

Flight from shv was great. My connecting flight was canceled though. Had to stay overnight in airport
American Airlines
7.1
Good
11,842 reviews
United Airlines
7.4
Good
10,026 reviews

Food

6.6

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Isaac,May 2024

SHV - IAH

Flight from shv was great. My connecting flight was canceled though. Had to stay overnight in airport

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Brownsville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from St. Louis to Brownsville?

    United Airlines and American Airlines can get you from St. Louis to Brownsville in just under 4h 47m. Your travel time can differ by up to 2h 44m. St. Louis and Brownsville are separated by a distance of 977 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from St. Louis to Brownsville round-trip?

    American Airlines, at $276, was found to be the cheapest airline from St. Louis to Brownsville. An alternate airline flying to your destination would be United Airlines. American Airlines is priced at 41% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from St. Louis to Brownsville that include hotel bookings?

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

  • How can I find direct flights from St. Louis to Brownsville?

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

  • Can I find deals for business class flights from St. Louis to Brownsville?

    Yes. Cheapflights offers flight deals from St. Louis to Brownsville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top 2 airlines flying from St. Louis to Brownsville

Discover the top 2 airlines that operate flights from St. Louis to Brownsville. 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 July 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$276Average$510FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$278Average$366FlexibilityNo cancel feeOn-time69%

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