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Cheap flights from St. Louis to Brownsville from $235

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 7/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from St. Louis to Brownsville

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
8:36 am - 2:05 pm
STL
-
BRO
5h 29m
1 stop
American Airlines Logo
6:00 am - 12:15 pm
BRO
-
STL
6h 15m
1 stop
$339American Airlines
Sat, Sep 5 - Sat, Sep 12
United Airlines Logo
11:10 am - 6:33 pm
STL
-
BRO
7h 23m
1 stop
United Airlines Logo
12:00 pm - 9:22 pm
BRO
-
STL
9h 22m
2 stops
$344United Airlines
Sat, Sep 5 - Sat, Sep 12
American Airlines Logo
7:12 am - 2:20 pm
STL
-
BRO
7h 08m
1 stop
American Airlines Logo
10:42 am - 5:21 pm
BRO
-
STL
6h 39m
1 stop
$369American Airlines
Sat, Apr 25 - Wed, Apr 29
American Airlines Logo
7:12 am - 2:20 pm
STL
-
BRO
7h 08m
1 stop
American Airlines Logo
2:50 pm - 10:17 pm
BRO
-
STL
7h 27m
2 stops
$374American Airlines
Sat, Apr 25 - Wed, Apr 29
American Airlines Logo
7:05 am - 7:11 pm
STL
-
BRO
12h 06m
2 stops
American Airlines Logo
2:50 pm - 11:46 pm
BRO
-
STL
8h 56m
2 stops
$379American Airlines
Sat, Apr 25 - Wed, Apr 29
American Airlines Logo
8:36 am - 2:05 pm
STL
-
BRO
5h 29m
1 stop
American Airlines Logo
6:43 pm - 11:41 pm
BRO
-
STL
4h 58m
1 stop
$409American Airlines
Wed, Sep 2 - Fri, Sep 11
American Airlines Logo
7:23 am - 6:04 pm
STL
-
BRO
10h 41m
2 stops
American Airlines Logo
2:43 pm - 7:46 pm
BRO
-
STL
5h 03m
1 stop
$414American Airlines
Wed, Sep 2 - Wed, Sep 9
American Airlines Logo
5:40 am - 10:05 am
STL
-
BRO
4h 25m
1 stop
American Airlines Logo
2:43 pm - 10:00 pm
BRO
-
STL
7h 17m
1 stop
$417American Airlines
Thu, Sep 10 - Mon, Sep 14
United Airlines Logo
4:44 pm - 9:59 pm
STL
-
BRO
5h 15m
1 stop
United Airlines Logo
5:17 pm - 10:30 pm
BRO
-
STL
5h 13m
1 stop
$419United Airlines
Tue, May 5 - Sat, May 9
American Airlines Logo
7:44 am - 6:13 pm
STL
-
BRO
10h 29m
2 stops
American Airlines Logo
2:43 pm - 10:00 pm
BRO
-
STL
7h 17m
1 stop
$422American Airlines
Thu, Sep 10 - Mon, Sep 14

American Airlines flights from St. Louis to Brownsville

Our best American Airlines deals on St. Louis to Brownsville flight tickets
American Airlines
Sep 5
STL8:36 amLambert-St Louis
5h 29m
1 stop
BRO2:05 pmBrownsville South Padre Is. Intl
Sep 12
BRO6:00 amBrownsville South Padre Is. Intl
6h 15m
1 stop
STL12:15 pmLambert-St Louis
$339
American Airlines
Apr 25
STL7:12 amLambert-St Louis
7h 08m
1 stop
BRO2:20 pmBrownsville South Padre Is. Intl
Apr 29
BRO10:42 amBrownsville South Padre Is. Intl
6h 39m
1 stop
STL5:21 pmLambert-St Louis
$369
American Airlines
Apr 25
STL7:12 amLambert-St Louis
7h 08m
1 stop
BRO2:20 pmBrownsville South Padre Is. Intl
Apr 29
BRO2:50 pmBrownsville South Padre Is. Intl
7h 27m
2 stops
STL10:17 pmLambert-St Louis
$374

United Airlines flights from St. Louis to Brownsville

Our best United Airlines deals on St. Louis to Brownsville flight tickets
United Airlines
Sep 5
STL11:10 amLambert-St Louis
7h 23m
1 stop
BRO6:33 pmBrownsville South Padre Is. Intl
Sep 12
BRO12:00 pmBrownsville South Padre Is. Intl
9h 22m
2 stops
STL9:22 pmLambert-St Louis
$344
United Airlines
May 5
STL4:44 pmLambert-St Louis
5h 15m
1 stop
BRO9:59 pmBrownsville South Padre Is. Intl
May 9
BRO5:17 pmBrownsville South Padre Is. Intl
5h 13m
1 stop
STL10:30 pmLambert-St Louis
$419
United Airlines
May 5
STL7:45 amLambert-St Louis
10h 43m
2 stops
BRO6:28 pmBrownsville South Padre Is. Intl
May 9
BRO9:25 amBrownsville South Padre Is. Intl
6h 36m
1 stop
STL4:01 pmLambert-St Louis
$424

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 April 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

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Sat 9/5

8:36 am-2:05 pm

1 stop5h 29m

Brownsville South Padre Is. Intl

Sat 9/12

6:00 am-12:15 pm

1 stop6h 15m

$339

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Sat 9/5

11:10 am-6:33 pm

1 stop7h 23m

Brownsville South Padre Is. Intl

Sat 9/12

12:00 pm-9:22 pm

2 stops9h 22m

$344

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Sat 4/25

7:12 am-2:20 pm

1 stop7h 08m

Brownsville South Padre Is. Intl

Wed 4/29

10:42 am-5:21 pm

1 stop6h 39m

$369

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Sat 4/25

7:12 am-2:20 pm

1 stop7h 08m

Brownsville South Padre Is. Intl

Wed 4/29

2:50 pm-10:17 pm

2 stops7h 27m

$374

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Sat 4/25

7:05 am-7:11 pm

2 stops12h 06m

Brownsville South Padre Is. Intl

Wed 4/29

2:50 pm-11:46 pm

2 stops8h 56m

$379
Quickest round-trip

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Wed 9/2

8:36 am-2:05 pm

1 stop5h 29m

Brownsville South Padre Is. Intl

Fri 9/11

6:43 pm-11:41 pm

1 stop4h 58m

$409

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Wed 9/2

7:23 am-6:04 pm

2 stops10h 41m

Brownsville South Padre Is. Intl

Wed 9/9

2:43 pm-7:46 pm

1 stop5h 03m

$414

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Thu 9/10

5:40 am-10:05 am

1 stop4h 25m

Brownsville South Padre Is. Intl

Mon 9/14

2:43 pm-10:00 pm

1 stop7h 17m

$417

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Tue 5/5

4:44 pm-9:59 pm

1 stop5h 15m

Brownsville South Padre Is. Intl

Sat 5/9

5:17 pm-10:30 pm

1 stop5h 13m

$419

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Thu 9/10

7:44 am-6:13 pm

2 stops10h 29m

Brownsville South Padre Is. Intl

Mon 9/14

2:43 pm-10:00 pm

1 stop7h 17m

$422

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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 typical price of a round-trip flight between St. Louis and Brownsville?

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

5h 07m

Direct flights

None
The fastest flight from St. Louis to Brownsville takes 5h 07m
There are no direct flights from St. Louis to Brownsville. There are no popular flight routes from St. Louis to Brownsville.
Search flight deals

Frequently asked questions about flying from St. Louis to Brownsville

  • 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. 5h 07m 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
9,589 reviews
Search United Airlines flights
American AirlinesPriceFrom $273Free CancellationRating
7.1
11,580 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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