HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Brownsville

$304+ 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BRO
Jul 15 — Jul 221
Wed 7/15
Wed 7/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Brownsville 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.

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 June 15, 2026.

This American Airlines deal was found by Cheapflights users on 6/11. 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 9/108:30 am
STL
-
BRO
1 stop5h 41m
American Airlines
Mon 9/146:37 pm
BRO
-
STL
1 stop5h 06m
American Airlines
Deal found 6/11$319
This United Airlines deal was found by Cheapflights users on 6/12. 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 7/86:14 am
STL
-
BRO
1 stop5h 12m
United Airlines
Tue 7/147:20 am
BRO
-
STL
2 stops8h 26m
United Airlines
Deal found 6/12$394
This United Airlines deal was found by Cheapflights users on 6/10. 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 8/297:25 am
STL
-
BRO
2 stops10h 48m
United Airlines
Tue 9/17:15 am
BRO
-
STL
1 stop7h 00m
United Airlines
Deal found 6/10$404
This American Airlines deal was found by Cheapflights users on 6/11. 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 7/107:22 pm
STL
-
BRO
1 stop4h 51m
American Airlines
Fri 7/172:47 pm
BRO
-
STL
1 stop7h 01m
American Airlines
Deal found 6/11$417
This United Airlines deal was found by Cheapflights users on 6/15. 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 9/107:00 am
STL
-
BRO
2 stops11h 13m
United Airlines
Mon 9/149:20 am
BRO
-
STL
2 stops14h 18m
United Airlines
Deal found 6/15$434
This United Airlines deal was found by Cheapflights users on 6/13. 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 6/2911:10 am
STL
-
BRO
1 stop7h 27m
United Airlines
Fri 7/34:44 pm
BRO
-
STL
1 stop6h 01m
United Airlines
Deal found 6/13$442
This American Airlines deal was found by Cheapflights users on 6/14. 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 7/25:29 am
STL
-
BRO
1 stop4h 36m
American Airlines
Mon 7/66:42 pm
BRO
-
STL
1 stop5h 16m
American Airlines
Deal found 6/14$444

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 June 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$319
(American Airlines)

Popular in

December

Cheapest in

February

Average price

$517
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
Highest demand for flights based on searches. 14% potential increase in price ($76 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 15, 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
Quickest round-trip

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Wed 7/8

5:32 am-10:12 am

1 stop4h 40m

Brownsville South Padre Is. Intl

Tue 7/14

6:42 pm-11:58 pm

1 stop5h 16m

$319

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Tue 7/7

7:07 am-2:17 pm

1 stop7h 10m

Brownsville South Padre Is. Intl

Sat 7/11

6:42 pm-11:58 pm

1 stop5h 16m

$319

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Wed 7/8

6:14 am-11:26 am

1 stop5h 12m

Brownsville South Padre Is. Intl

Tue 7/14

7:20 am-3:46 pm

2 stops8h 26m

$394

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Sat 8/29

7:25 am-6:13 pm

2 stops10h 48m

Brownsville South Padre Is. Intl

Tue 9/1

7:15 am-2:15 pm

1 stop7h 00m

$404

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Thu 9/10

7:00 am-6:13 pm

2 stops11h 13m

Brownsville South Padre Is. Intl

Mon 9/14

9:20 am-11:38 pm

2 stops14h 18m

$434
Cheapest one-way
Quickest one-way

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Sat 9/12

3:13 pm-9:59 pm

1 stop6h 46m

$304

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

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 June.
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.

Cheapflights Insights

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

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 June 15, 2026.
Read through reviews of airlines operating flights from St. Louis to Brownsville, such as American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.1
Good
11,660 reviews

Food

6.4

Overall

7.1

Boarding

7.5

Entertainment

6.8

Comfort

7.2

Crew

7.9

Reviews

1 / 20
8.0
Excellent

Monica,Nov 2025

JAC - DFW

At least there was an option of entertainment on this flight.
American Airlines
7.1
Good
11,660 reviews
American Airlines
7.1
Good
11,660 reviews

Food

6.4

Overall

7.1

Boarding

7.5

Entertainment

6.8

Comfort

7.2

Crew

7.9

Reviews

1 / 20
8.0
Excellent

Monica,Nov 2025

JAC - DFW

At least there was an option of entertainment on this flight.

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?

    American Airlines and United Airlines can get you from St. Louis to Brownsville in just under 4h 40m. Your travel time can differ by up to 6h 08m. 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 is the cheapest airline to fly from St. Louis to Brownsville round-trip?

    American Airlines, at $276, was found to be the cheapest airline from St. Louis to Brownsville.. American Airlines is priced at 36% 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

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 St. Louis to Brownsville

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Dallas/Fort Worth flights
St. Louis to Hobby flights
Kansas City to Hobby flights
St. Louis to George Bush Intcntl flights
St. Louis to Dallas/Fort Worth flights
Kansas City to George Bush Intcntl flights
Kansas City to Austin flights
Columbia to Dallas/Fort Worth flights
Kansas City to Love Field flights
St. Louis to San Antonio flights
St. Louis to Austin flights
St. Louis to Love Field flights
Springfield to Hobby flights
Kansas City to San Antonio flights
Springfield to Dallas/Fort Worth flights
Springfield to George Bush Intcntl flights
St. Louis to Lubbock flights
Columbia to Austin flights
Columbia to San Antonio flights
Springfield to Austin flights
Columbia to Hobby flights
Joplin to Dallas/Fort Worth flights
Columbia to George Bush Intcntl flights
St. Louis to El Paso flights
Kansas City to Corpus Christi flights
St. Louis to McAllen flights
Kansas City to Brownsville flights
Joplin to Austin flights
Springfield to San Antonio flights
St. Louis to Corpus Christi flights
Kansas City to Lubbock flights
Kansas City to Harlingen flights
Springfield to El Paso flights
St. Louis to Amarillo flights
Springfield to McAllen flights
Kansas City to El Paso flights
St. Louis to Midland flights
Kansas City to McAllen flights
St. Louis to Abilene flights
St. Louis to Waco flights
Springfield to Corpus Christi flights
Kansas City to Amarillo flights
St. Louis to Harlingen flights
Joplin to San Antonio flights
Springfield to Love Field flights
St. Louis to Killeen flights
Columbia to McAllen flights

Top airline flying from St. Louis to Brownsville

Discover the top airline 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 June 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$276Average$510FlexibilityNo cancel feeOn-time71%

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.