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

View $160 flight on Fri, Nov 7, 2025Opens in a new window

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

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

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, Feb 12 - Wed, Feb 18
BRO
Brownsville
STL
St. Louis
$259 Roundtrip, found 1 day ago
$259
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Feb 12 from Brownsville to St. Louis, returning Wed, Feb 18, priced at $259 found 1 day ago
United
Thu, Feb 12 - Wed, Feb 18
BRO
Brownsville
STL
St. Louis
$259 Roundtrip, found 1 day ago
$259
Roundtrip
found 1 day ago
Select United flight, departing Thu, Feb 12 from Brownsville to St. Louis, returning Wed, Feb 18, priced at $259 found 1 day ago
United
Thu, Feb 12 - Wed, Feb 18
BRO
Brownsville
STL
St. Louis
$264 Roundtrip, found 1 day ago
$264
Roundtrip
found 1 day ago
Select United flight, departing Thu, Feb 12 from Brownsville to St. Louis, returning Wed, Feb 18, priced at $264 found 1 day ago
United
Fri, Feb 20 - Sun, Feb 22
BRO
Brownsville
STL
St. Louis
$273 Roundtrip, found 3 days ago
$273
Roundtrip
found 3 days ago
Select United flight, departing Fri, Feb 20 from Brownsville to St. Louis, returning Sun, Feb 22, priced at $273 found 3 days ago
United
Fri, Oct 17 - Mon, Oct 20
BRO
Brownsville
STL
St. Louis
$289 Roundtrip, found 6 days ago
$289
Roundtrip
found 6 days ago
Select United flight, departing Fri, Oct 17 from Brownsville to St. Louis, returning Mon, Oct 20, priced at $289 found 6 days ago
United
Thu, Feb 5 - Sun, Feb 8
BRO
Brownsville
STL
St. Louis
$293 Roundtrip, found 5 days ago
$293
Roundtrip
found 5 days ago
Select United flight, departing Thu, Feb 5 from Brownsville to St. Louis, returning Sun, Feb 8, priced at $293 found 5 days ago
United
Thu, Feb 12 - Wed, Feb 18
BRO
Brownsville
STL
St. Louis
$298 Roundtrip, found 1 day ago
$298
Roundtrip
found 1 day ago
Select United flight, departing Thu, Feb 12 from Brownsville to St. Louis, returning Wed, Feb 18, priced at $298 found 1 day ago
United
Fri, Feb 6 - Sun, Feb 8
BRO
Brownsville
STL
St. Louis
$301 Roundtrip, found 2 days ago
$301
Roundtrip
found 2 days ago
Select United flight, departing Fri, Feb 6 from Brownsville to St. Louis, returning Sun, Feb 8, priced at $301 found 2 days ago
United
Fri, Feb 20 - Sun, Feb 22
BRO
Brownsville
STL
St. Louis
$307 Roundtrip, found 3 days ago
$307
Roundtrip
found 3 days ago
Select United flight, departing Fri, Feb 20 from Brownsville to St. Louis, returning Sun, Feb 22, priced at $307 found 3 days ago
American Airlines
Thu, Feb 12 - Wed, Feb 18
BRO
Brownsville
STL
St. Louis
$314 Roundtrip, found 1 day ago
$314
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Feb 12 from Brownsville to St. Louis, returning Wed, Feb 18, priced at $314 found 1 day ago

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

February is typically the cheapest month to fly

From $198 - $559 per traveler.

Frequently asked questions

How much does a flight from Brownsville-South Padre Island Intl. Airport (BRO) to Lambert-St. Louis Intl. Airport (STL) cost?
Secure a cheap one-way flight from $160 or cheap return flight from $259 from Brownsville-South Padre Island Intl. Airport (BRO) to Lambert-St. Louis Intl. Airport (STL) 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 Brownsville-South Padre Island Intl. Airport (BRO) to Lambert-St. Louis Intl. Airport (STL)?
February is the most affordable month to fly from BRO to STL. Timing your trip outside of the busy season is often the key to scoring lower fares.
What is the cheapest airline that flies from Brownsville-South Padre Island Intl. Airport (BRO) to Lambert-St. Louis Intl. Airport (STL)?
To find the cheapest airline flying from BRO to STL, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Brownsville-South Padre Island Intl. Airport (BRO) to Lambert-St. Louis Intl. Airport (STL)?
You'll have to hop on a flight with a layover if you're traveling from Brownsville-South Padre Island Intl. Airport (BRO) to Lambert-St. Louis Intl. Airport (STL). There are no daily direct flights on this route. However, just filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from BRO to STL?
Usually you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can change based on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Brownsville-South Padre Island Intl. Airport (BRO) to Lambert-St. Louis Intl. Airport (STL)?
To avoid possible delays on the Brownsville-South Padre Island Intl. Airport (BRO) to Lambert-St. Louis Intl. Airport (STL) route, travel before 3 PM. Departures after this hour have a 22% higher chance of being 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 Brownsville-South Padre Island Intl. Airport (BRO) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Holding off until just before your departure to book a flight from BRO to STL generally means paying more. While it's possible to find some last-minute discounts, there's no guarantee. Keep your travel plans flexible to maximize your chances of scoring a bargain.
Is it cheaper to book a BRO to STL flight and hotel package?
Compared with arranging hotels and flights separately, booking a BRO to STL flight and hotel package with Expedia could lead to significant savings. Better still, having it all in one place takes the hassle out of travel planning. Just pick your flights and select from our wide range of hotels, then personalize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Brownsville-South Padre Island Intl. Airport (BRO) to Lambert-St. Louis Intl. Airport (STL)?
In most instances, you can reschedule or cancel your BRO to STL flight. However, there may be additional charges, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you need more information, head to our Customer Service portal.

Travel information

Travel information

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

Book with confidence

Book with confidence

Brownsville to St. Louis Flights

The cheapest times to fly from Brownsville to St. Louis

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 Brownsville to St. Louis are during the month of February. You can find some of the cheapest flights from Brownsville to St. Louis with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Brownsville to St. Louis: 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 Brownsville to St. Louis

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 Brownsville to St. Louis 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 Brownsville to St. Louis 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 Brownsville to St. Louis 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.

 

Brownsville to St. Louis Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.