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Cheap flights from St. Louis to Brownsville from $160

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Brownsville departing on 3/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
4:49 pm - 9:47 pm
STL
-
BRO
4h 58m
1 stop
United Airlines Logo
5:25 pm - 10:28 pm
BRO
-
STL
5h 03m
1 stop
$279United Airlines
Tue, Apr 14 - Tue, Apr 28
United Airlines Logo
4:49 pm - 9:47 pm
STL
-
BRO
4h 58m
1 stop
United Airlines Logo
9:15 am - 9:13 pm
BRO
-
STL
11h 58m
2 stops
$284United Airlines
Tue, Apr 14 - Tue, Apr 28
United Airlines Logo
10:05 am - 4:22 pm
STL
-
BRO
6h 17m
1 stop
United Airlines Logo
5:15 am - 9:21 am
BRO
-
STL
4h 06m
1 stop
$289United Airlines
Tue, Mar 24 - Sat, Mar 28
United Airlines Logo
6:25 am - 4:22 pm
STL
-
BRO
9h 57m
2 stops
United Airlines Logo
5:15 am - 9:21 am
BRO
-
STL
4h 06m
1 stop
$304United Airlines
Tue, Mar 24 - Sat, Mar 28
United Airlines Logo
6:00 am - 11:27 am
STL
-
BRO
5h 27m
1 stop
United Airlines Logo
5:17 pm - 10:30 pm
BRO
-
STL
5h 13m
1 stop
$349United Airlines
Wed, May 13 - Wed, May 20
United Airlines Logo
7:45 am - 4:24 pm
STL
-
BRO
8h 39m
2 stops
United Airlines Logo
5:17 pm - 10:30 pm
BRO
-
STL
5h 13m
1 stop
$354United Airlines
Wed, May 13 - Wed, May 20
United Airlines Logo
1:13 pm - 9:52 pm
STL
-
BRO
8h 39m
2 stops
United Airlines Logo
9:20 am - 2:08 pm
BRO
-
STL
4h 48m
1 stop
$363United Airlines
Sat, Aug 8 - Tue, Aug 11
United Airlines Logo
1:13 pm - 9:52 pm
STL
-
BRO
8h 39m
2 stops
United Airlines Logo
12:00 pm - 9:22 pm
BRO
-
STL
9h 22m
2 stops
$368United Airlines
Sat, Aug 8 - Tue, Aug 11
United Airlines Logo
6:00 am - 11:19 am
STL
-
BRO
5h 19m
1 stop
United Airlines Logo
5:17 pm - 10:30 pm
BRO
-
STL
5h 13m
1 stop
$373United Airlines
Thu, Apr 23 - Thu, Apr 30
United Airlines Logo
8:35 am - 9:52 pm
STL
-
BRO
13h 17m
2 stops
United Airlines Logo
12:10 pm - 11:45 pm
BRO
-
STL
11h 35m
2 stops
$374United Airlines
Tue, Jul 28 - Mon, Aug 10

United Airlines flights from St. Louis to Brownsville

Our best United Airlines deals on St. Louis to Brownsville flight tickets
United Airlines
Apr 14
STL4:49 pmLambert-St Louis
4h 58m
1 stop
BRO9:47 pmBrownsville South Padre Is. Intl
Apr 28
BRO5:25 pmBrownsville South Padre Is. Intl
5h 03m
1 stop
STL10:28 pmLambert-St Louis
$279
United Airlines
Apr 14
STL4:49 pmLambert-St Louis
4h 58m
1 stop
BRO9:47 pmBrownsville South Padre Is. Intl
Apr 28
BRO9:15 amBrownsville South Padre Is. Intl
11h 58m
2 stops
STL9:13 pmLambert-St Louis
$284
United Airlines
Mar 24
STL10:05 amLambert-St Louis
6h 17m
1 stop
BRO4:22 pmBrownsville South Padre Is. Intl
Mar 28
BRO5:15 amBrownsville South Padre Is. Intl
4h 06m
1 stop
STL9:21 amLambert-St Louis
$289

American Airlines flights from St. Louis to Brownsville

Our best American Airlines deals on St. Louis to Brownsville flight tickets
American Airlines
Apr 23
STL5:20 amLambert-St Louis
4h 52m
1 stop
BRO10:12 amBrownsville South Padre Is. Intl
Apr 24
BRO5:40 amBrownsville South Padre Is. Intl
5h 57m
1 stop
STL11:37 amLambert-St Louis
$339
American Airlines
Apr 23
STL7:05 amLambert-St Louis
12h 06m
2 stops
BRO7:11 pmBrownsville South Padre Is. Intl
Apr 25
BRO2:50 pmBrownsville South Padre Is. Intl
7h 27m
2 stops
STL10:17 pmLambert-St Louis
$379
American Airlines
Aug 8
STL5:32 pmLambert-St Louis
5h 05m
1 stop
BRO10:37 pmBrownsville South Padre Is. Intl
Aug 11
BRO10:33 amBrownsville South Padre Is. Intl
6h 18m
1 stop
STL4:51 pmLambert-St Louis
$385

momondo 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, momondo users made 832,500 searches. Data last updated March 4, 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

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Tue 4/14

4:49 pm-9:47 pm

1 stop4h 58m

Brownsville South Padre Is. Intl

Tue 4/28

5:25 pm-10:28 pm

1 stop5h 03m

$279

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Tue 4/14

4:49 pm-9:47 pm

1 stop4h 58m

Brownsville South Padre Is. Intl

Tue 4/28

9:15 am-9:13 pm

2 stops11h 58m

$284

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Tue 3/24

10:05 am-4:22 pm

1 stop6h 17m

Brownsville South Padre Is. Intl

Sat 3/28

5:15 am-9:21 am

1 stop4h 06m

$289

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Tue 3/24

6:25 am-4:22 pm

2 stops9h 57m

Brownsville South Padre Is. Intl

Sat 3/28

5:15 am-9:21 am

1 stop4h 06m

$304

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Wed 5/13

6:00 am-11:27 am

1 stop5h 27m

Brownsville South Padre Is. Intl

Wed 5/20

5:17 pm-10:30 pm

1 stop5h 13m

$349

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Wed 5/13

7:45 am-4:24 pm

2 stops8h 39m

Brownsville South Padre Is. Intl

Wed 5/20

5:17 pm-10:30 pm

1 stop5h 13m

$354

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Sat 8/8

1:13 pm-9:52 pm

2 stops8h 39m

Brownsville South Padre Is. Intl

Tue 8/11

9:20 am-2:08 pm

1 stop4h 48m

$363

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Sat 8/8

1:13 pm-9:52 pm

2 stops8h 39m

Brownsville South Padre Is. Intl

Tue 8/11

12:00 pm-9:22 pm

2 stops9h 22m

$368

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Thu 4/23

6:00 am-11:19 am

1 stop5h 19m

Brownsville South Padre Is. Intl

Thu 4/30

5:17 pm-10:30 pm

1 stop5h 13m

$373

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Tue 7/28

8:35 am-9:52 pm

2 stops13h 17m

Brownsville South Padre Is. Intl

Mon 8/10

12:10 pm-11:45 pm

2 stops11h 35m

$374

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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How to get the cheapest flight ticket from St. Louis to Brownsville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Brownsville?

The month of November is another great option to travel to Brownsville, with average flight prices from St. Louis averaging around $266.

When to book flights from St. Louis to Brownsville

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Brownsville according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Brownsville (STL to BRO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Brownsville

Fastest flight time

4h 47m

Direct flights

None
The fastest flight from St. Louis to Brownsville takes 4h 47m
There are no direct flights from St. Louis to Brownsville. There are no popular flight routes from St. Louis to Brownsville.
Search flight deals

  • How far is Lambert-St Louis to Brownsville South Padre Is. Intl by plane?

    There are 975.7 mi between Lambert-St Louis and Brownsville South Padre Is. Intl. 4h 47m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Brownsville South Padre Is. Intl Airport?

    Prices for flights from Lambert-St Louis Airport to Brownsville South Padre Is. Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Brownsville South Padre Is. Intl Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Brownsville South Padre Is. Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Brownsville South Padre Is. Intl Airport.

  • What documentation or ID do you need to fly to Brownsville South Padre Is. Intl Airport?

    The travel and health documents required for your trip to Brownsville South Padre Is. Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Brownsville South Padre Is. Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from St. Louis to Brownsville?

Best airlines flying from St. Louis to Brownsville

Compare and see reviews for airlines that fly from St. Louis to Brownsville with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $258Free CancellationRating
7.4
9,382 reviews
Search United Airlines flights
American AirlinesPriceFrom $273Free CancellationRating
7.1
11,378 reviews
Search American Airlines flights

Traveling to a place near Brownsville?

Book flights to Brownsville if you plan to visit one of these locations
South Padre Island

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We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to Brownsville for you.

Can I find flights from St. Louis to Brownsville with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for St. Louis to Brownsville flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to Brownsville?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Brownsville from St. Louis.

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