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$174+ 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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BRO
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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Find 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 October 27, 2025.

This United Airlines deal was found by Cheapflights users on 10/26. 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.
Sat 11/156:15 amSTL - BRO
1 stop5h 13mUnited Airlines
Sat 11/225:15 pmBRO - STL
1 stop5h 07mUnited Airlines
Deal found 10/26$274
This American Airlines deal was found by Cheapflights users on 10/24. 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.
Fri 12/55:14 amSTL - BRO
1 stop4h 42mAmerican Airlines
Sun 12/75:27 amBRO - STL
1 stop5h 10mAmerican Airlines
Deal found 10/24$314
This American Airlines deal was found by Cheapflights users on 10/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/115:58 pmSTL - BRO
1 stop5h 06mAmerican Airlines
Sat 11/155:20 amBRO - STL
1 stop5h 27mAmerican Airlines
Deal found 10/26$380
This American Airlines deal was found by Cheapflights users on 10/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/156:00 amSTL - BRO
2 stops11h 12mAmerican Airlines
Sat 11/225:20 amBRO - STL
2 stops10h 42mAmerican Airlines
Deal found 10/26$390
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Tue 11/1110:00 amSTL - BRO
2 stops10h 25mUnited Airlines
Sat 11/157:15 amBRO - STL
2 stops8h 31mUnited Airlines
Deal found 10/26$394
This United Airlines deal was found by Cheapflights users on 10/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/511:50 amSTL - BRO
2 stops11h 46mUnited Airlines
Sun 12/75:25 pmBRO - STL
2 stops20h 58mUnited Airlines
Deal found 10/24$457
This United Airlines deal was found by Cheapflights users on 10/25. 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 10/298:20 amSTL - BRO
1 stop7h 40mUnited Airlines
Fri 10/3112:15 pmBRO - STL
1 stop6h 32mUnited Airlines
Deal found 10/25$469

Cheap 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 October 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$274
(United Airlines)

One-way from

$174
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$363
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. 8% potential increase in price ($35 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 October 27, 2025.
Use the filters below to find and compare flights from St. Louis to Brownsville that are best for you.

Fly from

St. Louis

Fly to

Brownsville

Route

Depart

Return

Price

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Sat 11/15

6:15 am-11:28 am

1 stop5h 13m

Brownsville South Padre Is. Intl

Sat 11/22

5:15 pm-10:22 pm

1 stop5h 07m

$274

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Fri 12/5

5:14 am-9:56 am

1 stop4h 42m

Brownsville South Padre Is. Intl

Sun 12/7

5:27 am-10:37 am

1 stop5h 10m

$314

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Tue 11/11

5:58 pm-11:04 pm

1 stop5h 06m

Brownsville South Padre Is. Intl

Sat 11/15

5:20 am-10:47 am

1 stop5h 27m

$380

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Tue 3/10

6:00 am-11:22 am

1 stop5h 22m

Brownsville South Padre Is. Intl

Wed 3/11

5:25 pm-10:13 pm

1 stop4h 48m

$389

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Sat 11/15

6:00 am-5:12 pm

2 stops11h 12m

Brownsville South Padre Is. Intl

Sat 11/22

5:20 am-4:02 pm

2 stops10h 42m

$390

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Sun 11/9

5:17 am-9:56 am

1 stop4h 39m

$174

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Sun 11/9

8:00 am-8:25 pm

2 stops12h 25m

$414

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/25

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Brownsville flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Brownsville

What is the cheapest month to book a flight from St. Louis to Brownsville?

Currently, May is the cheapest month in which you can book a flight from St. Louis to Brownsville (average of $196). Flying from St. Louis to Brownsville in July is currently the most expensive (average of $313). 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 BRO?

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

Unlike in the evening, when flights are generally more expensive, you can save up to 52% on flights from St. Louis to Brownsville by exploring options for tickets at noon.

How much does it cost to fly round-trip from St. Louis to Brownsville?

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 October 27, 2025.
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
8,997 reviews

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
8,997 reviews
United Airlines
7.4
Good
8,997 reviews

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
American Airlines
7.2
Good
11,033 reviews
United Airlines
7.4
Good
8,997 reviews

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 42m. Your travel time can differ by up to 31m. 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?

    United Airlines, at $258, was found to be the cheapest airline from St. Louis to Brownsville. An alternate airline flying to your destination would be American Airlines. United Airlines is priced at 34% 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.

  • What is the cheapest month to book a flight from St. Louis to Brownsville?

    Currently, May is the cheapest month in which you can book a flight from St. Louis to Brownsville (average of $196). Flying from St. Louis to Brownsville in July is currently the most expensive (average of $313). 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

Browse thousands of different options on Cheapflights for your next trip

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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 October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$258Average$350FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$273Average$413FlexibilityNo cancel feeOn-time71%

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