$439+ Cheap flights from Brownsville to St. Louis (BRO - STL)
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 11/23. Fares are subject to change and may not be available on all flights or dates of travel.
BRO — STL
Nov 19 — Nov 261
Round-trip
1 adult, Economy
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Find cheap flights from Brownsville to St. Louis 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 Brownsville to St. Louis
Cheapest
Best
Last-minute
Cheapest flights from Brownsville to St. LouisExplore the most affordable flight options available from Brownsville to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2026.
Explore the most affordable flight options available from Brownsville to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2026.
This American Airlines deal was found by Cheapflights users on 10/17. 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 11/233:39 pm -
1 stop6h 20m
Sun 11/295:00 am -
1 stop5h 04m
Deal found 10/17![American Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 10/18. 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 10/239:10 am -
1 stop5h 00m
Sun 10/257:30 am -
2 stops8h 31m
Deal found 10/18![United Airlines logo]()
$604
This United Airlines deal was found by Cheapflights users on 10/17. 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 11/2311:55 am -
2 stops9h 45m
Sun 11/296:15 am -
1 stop5h 04m
Deal found 10/17![United Airlines logo]()
$707
Best flights from Brownsville to St. LouisDiscover carefully curated flight deals from Brownsville to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 20, 2026.
Discover carefully curated flight deals from Brownsville to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 20, 2026.
This American Airlines deal was found by Cheapflights users on 10/17. 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 11/233:39 pm -
1 stop6h 20m
Sun 11/295:00 am -
1 stop5h 04m
Deal found 10/17![American Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 10/17. 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 11/2311:55 am -
2 stops9h 45m
Sun 11/296:15 am -
1 stop5h 04m
Deal found 10/17![United Airlines logo]()
$707
Last-minute flights from Brownsville to St. LouisDiscover last-minute flight deals from Brownsville to St. Louis. Data last updated October 20, 2026 and is based on user searches.
Discover last-minute flight deals from Brownsville to St. Louis. Data last updated October 20, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/18. 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 10/239:10 am -
1 stop5h 00m
Sun 10/257:30 am -
2 stops8h 31m
Deal found 10/18![United Airlines logo]()
$604
This American Airlines deal was found by Cheapflights users on 10/17. 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 11/233:39 pm -
1 stop6h 20m
Sun 11/295:00 am -
1 stop5h 04m
Deal found 10/17![American Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 10/17. 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 11/2311:55 am -
2 stops9h 45m
Sun 11/296:15 am -
1 stop5h 04m
Deal found 10/17![United Airlines logo]()
$707
Find flight deals from Brownsville to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Brownsville (BRO) to St. Louis (STL). 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 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $439 (American Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Brownsville to St. Louis 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 7,457,451 searches. Data last updated October 20, 2026.
Use the filters below to find and compare flights from Brownsville to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
BrownsvilleSt. Louis
BRO Brownsville South Padre Is. Intl - STL Lambert-St Louis
BROSTL
Brownsville South Padre Is. Intl
Mon 11/23
3:39 pm-9:59 pm
1 stop6h 20m
Lambert-St Louis
Sun 11/29
5:00 am-10:04 am
1 stop5h 04m
$439
BrownsvilleSt. Louis
BRO Brownsville South Padre Is. Intl - STL Lambert-St Louis
BROSTL
Brownsville South Padre Is. Intl
Mon 11/23
11:55 am-9:40 pm
2 stops9h 45m
Lambert-St Louis
Sun 11/29
6:15 am-11:19 am
1 stop5h 04m
$707
Sorted by cheapest first
Compare providers for flights from Brownsville to St. Louis
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 Brownsville to St. Louis in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Brownsville-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Brownsville-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Brownsville-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Brownsville-St. Louis 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 Brownsville-St. Louis 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 Brownsville to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Brownsville with our price prediction graph.
BRO-STL
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 St. Louis
Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated October 20, 2026.
Peruse reviews from past customers who have flown with United Airlines from Brownsville to St. Louis to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.3
Boarding
7.7
Crew
8.1
Entertainment
7.1
Food
6.7
Comfort
7.3
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Overall
7.3
Boarding
7.7
Crew
8.1
Entertainment
7.1
Food
6.7
Comfort
7.3
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Related info for your journey
Find useful and relevant information for your journey from Brownsville to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsFairview Heights
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Glencoe
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Brownsville and St. Louis flights
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Top airline flying from Brownsville to St. Louis
Discover the top airline that operate flights from Brownsville to St. Louis. 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 7,457,451 searches. Data last updated October 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$273 | Average$428 | FlexibilityNo cancel fee | On-time69% |