$160 Cheap Flights from St. Louis (STL) to Brownsville (BRO)

View $160 flight on Fri, Nov 28, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Brownsville-South Padre Island Intl. Airport (BRO)

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Cheap Flights from St. Louis to Brownsville (STL-BRO)

Prices were available within the past 7 days and start at $160 for one-way flights and $259 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Dec 11 - Tue, Dec 16
STL
St. Louis
BRO
Brownsville
$259 Roundtrip, found 7 hours ago
$259
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Thu, Dec 11 from St. Louis to Brownsville, returning Tue, Dec 16, priced at $259 found 7 hours ago
American Airlines
Thu, Feb 12 - Wed, Feb 18
STL
St. Louis
BRO
Brownsville
$264 Roundtrip, found 10 hours ago
$264
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Thu, Feb 12 from St. Louis to Brownsville, returning Wed, Feb 18, priced at $264 found 10 hours ago
United
Thu, Dec 11 - Tue, Dec 16
STL
St. Louis
BRO
Brownsville
$281 Roundtrip, found 7 hours ago
$281
Roundtrip
found 7 hours ago
Select United flight, departing Thu, Dec 11 from St. Louis to Brownsville, returning Tue, Dec 16, priced at $281 found 7 hours ago
United
Sat, Feb 28 - Sat, Mar 7
STL
St. Louis
BRO
Brownsville
$284 Roundtrip, found 20 hours ago
$284
Roundtrip
found 20 hours ago
Select United flight, departing Sat, Feb 28 from St. Louis to Brownsville, returning Sat, Mar 7, priced at $284 found 20 hours ago
United
Sat, Feb 28 - Sat, Mar 7
STL
St. Louis
BRO
Brownsville
$286 Roundtrip, found 20 hours ago
$286
Roundtrip
found 20 hours ago
Select United flight, departing Sat, Feb 28 from St. Louis to Brownsville, returning Sat, Mar 7, priced at $286 found 20 hours ago
United
Thu, Jan 8 - Sun, Jan 11
STL
St. Louis
BRO
Brownsville
$288 Roundtrip, found 3 days ago
$288
Roundtrip
found 3 days ago
Select United flight, departing Thu, Jan 8 from St. Louis to Brownsville, returning Sun, Jan 11, priced at $288 found 3 days ago
United
Sat, Feb 28 - Sat, Mar 7
STL
St. Louis
BRO
Brownsville
$289 Roundtrip, found 20 hours ago
$289
Roundtrip
found 20 hours ago
Select United flight, departing Sat, Feb 28 from St. Louis to Brownsville, returning Sat, Mar 7, priced at $289 found 20 hours ago
United
Thu, Jan 8 - Sun, Jan 11
STL
St. Louis
BRO
Brownsville
$296 Roundtrip, found 3 days ago
$296
Roundtrip
found 3 days ago
Select United flight, departing Thu, Jan 8 from St. Louis to Brownsville, returning Sun, Jan 11, priced at $296 found 3 days ago
United
Thu, Jan 8 - Sun, Jan 11
STL
St. Louis
BRO
Brownsville
$302 Roundtrip, found 3 days ago
$302
Roundtrip
found 3 days ago
Select United flight, departing Thu, Jan 8 from St. Louis to Brownsville, returning Sun, Jan 11, priced at $302 found 3 days ago
United
Sat, Feb 28 - Sat, Mar 7
STL
St. Louis
BRO
Brownsville
$308 Roundtrip, found 20 hours ago
$308
Roundtrip
found 20 hours ago
Select United flight, departing Sat, Feb 28 from St. Louis to Brownsville, returning Sat, Mar 7, priced at $308 found 20 hours ago

Find the cheapest month to fly from St. Louis (STL) to Brownsville (BRO)

May is typically the cheapest month to fly

From $228 - $535 per traveler.

Alternative airports near Brownsville

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Valley Intl. HRL. Cheapest option available. Average driving time to city center is 32 minutes. Flights from $253
HRL
Valley Intl.
Cheapest
Average driving time to city center32 min
Flights from $253

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Brownsville-South Padre Island Intl. Airport (BRO) cost?
Lock in a cheap one-way flight from $160 or cheap return flight from $259 from Lambert-St. Louis Intl. Airport (STL) to Brownsville-South Padre Island Intl. Airport (BRO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Brownsville-South Padre Island Intl. Airport (BRO)?
December is the cheapest month to fly from STL to BRO. Traveling during an off-peak travel window is often the key to scoring lower fares.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Brownsville-South Padre Island Intl. Airport (BRO)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest STL to BRO flight.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Brownsville-South Padre Island Intl. Airport (BRO)?
Direct flights from Lambert-St. Louis Intl. Airport (STL) to Brownsville-South Padre Island Intl. Airport (BRO) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STL to BRO?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Brownsville-South Padre Island Intl. Airport (BRO)?
Select a flight from Lambert-St. Louis Intl. Airport (STL) to Brownsville-South Padre Island Intl. Airport (BRO) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Brownsville-South Padre Island Intl. Airport (BRO) last-minute?
Booking your flight from STL to BRO right before your trip is typically more expensive. But if there's some wiggle room with your travel dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book a STL to BRO flight and hotel package?
Compared with arranging flights and hotels separately, booking a STL to BRO flight and hotel package with Expedia could lead to significant savings. Better still, having it all in one place takes the hassle out of planning your trip. Just pick your flights and choose from our wide range of stays, then customize your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Brownsville-South Padre Island Intl. Airport (BRO)?
If you booked your STL to BRO flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Brownsville-South Padre Island Intl.
Airlines serving
American Airlines, United
Roundtrip price
$258
Distance
977 mi

Book with confidence

St. Louis to Brownsville Flights

The cheapest times to fly from St. Louis to Brownsville

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Brownsville are during the month of December. You can find some of the cheapest flights from St. Louis to Brownsville with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Brownsville

Sunday is one of the best days to book for cheap flights from St. Louis to Brownsville: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Brownsville

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Brownsville in 2025. You can also book with separate airlines for your outbound and return journeys, from $160 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Brownsville flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Brownsville airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

St. Louis to Brownsville Flights

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*Available to One Key members.