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Cheap flights from St. Louis to Brownsville from $319

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Brownsville departing on 9/10. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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
7:00 am - 2:11 pm
STL
-
BRO
7h 11m
1 stop
American Airlines Logo
6:37 pm - 11:43 pm
BRO
-
STL
5h 06m
1 stop
$319American Airlines
Thu, Sep 10 - Mon, Sep 14
United Airlines Logo
11:15 am - 3:51 pm
STL
-
BRO
4h 36m
1 stop
United Airlines Logo
12:05 pm - 10:59 pm
BRO
-
STL
10h 54m
2 stops
$324United Airlines
Wed, Aug 12 - Wed, Aug 19
American Airlines Logo
7:07 am - 2:17 pm
STL
-
BRO
7h 10m
1 stop
American Airlines Logo
10:43 am - 6:05 pm
BRO
-
STL
7h 22m
1 stop
$327American Airlines
Tue, Aug 4 - Wed, Aug 12
United Airlines Logo
7:25 am - 3:51 pm
STL
-
BRO
8h 26m
2 stops
United Airlines Logo
7:15 am - 3:38 pm
BRO
-
STL
8h 23m
2 stops
$391United Airlines
Wed, Aug 12 - Wed, Aug 19
United Airlines Logo
3:13 pm - 9:59 pm
STL
-
BRO
6h 46m
1 stop
United Airlines Logo
12:05 pm - 6:31 pm
BRO
-
STL
6h 26m
1 stop
$399United Airlines
Sat, Sep 19 - Tue, Sep 22
United Airlines Logo
8:00 am - 6:13 pm
STL
-
BRO
10h 13m
2 stops
United Airlines Logo
12:05 pm - 6:31 pm
BRO
-
STL
6h 26m
1 stop
$404United Airlines
Sat, Sep 19 - Tue, Sep 22
United Airlines Logo
8:00 am - 6:13 pm
STL
-
BRO
10h 13m
2 stops
United Airlines Logo
12:05 pm - 10:00 pm
BRO
-
STL
9h 55m
2 stops
$409United Airlines
Sat, Sep 19 - Tue, Sep 22
American Airlines Logo
7:00 am - 2:11 pm
STL
-
BRO
7h 11m
1 stop
American Airlines Logo
2:47 pm - 7:07 pm
BRO
-
STL
4h 20m
1 stop
$417American Airlines
Thu, Sep 10 - Mon, Sep 14
United Airlines Logo
8:35 am - 3:57 pm
STL
-
BRO
7h 22m
1 stop
United Airlines Logo
7:15 am - 3:38 pm
BRO
-
STL
8h 23m
2 stops
$419United Airlines
Tue, Aug 4 - Wed, Aug 12
United Airlines Logo
6:15 am - 11:20 am
STL
-
BRO
5h 05m
1 stop
United Airlines Logo
5:25 pm - 10:06 pm
BRO
-
STL
4h 41m
1 stop
$424United Airlines
Thu, Dec 31 - Thu, Jan 7

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American Airlines flights from St. Louis to Brownsville

Our best American Airlines deals on St. Louis to Brownsville flight tickets
American Airlines
Sep 10
STL7:00 amLambert-St Louis
7h 11m
1 stop
BRO2:11 pmBrownsville South Padre Is. Intl
Sep 14
BRO6:37 pmBrownsville South Padre Is. Intl
5h 06m
1 stop
STL11:43 pmLambert-St Louis
$319
American Airlines
Aug 4
STL7:07 amLambert-St Louis
7h 10m
1 stop
BRO2:17 pmBrownsville South Padre Is. Intl
Aug 12
BRO10:43 amBrownsville South Padre Is. Intl
7h 22m
1 stop
STL6:05 pmLambert-St Louis
$327
American Airlines
Sep 10
STL7:00 amLambert-St Louis
7h 11m
1 stop
BRO2:11 pmBrownsville South Padre Is. Intl
Sep 14
BRO2:47 pmBrownsville South Padre Is. Intl
4h 20m
1 stop
STL7:07 pmLambert-St Louis
$417

United Airlines flights from St. Louis to Brownsville

Our best United Airlines deals on St. Louis to Brownsville flight tickets
United Airlines
Aug 12
STL11:15 amLambert-St Louis
4h 36m
1 stop
BRO3:51 pmBrownsville South Padre Is. Intl
Aug 19
BRO12:05 pmBrownsville South Padre Is. Intl
10h 54m
2 stops
STL10:59 pmLambert-St Louis
$324
United Airlines
Aug 12
STL7:25 amLambert-St Louis
8h 26m
2 stops
BRO3:51 pmBrownsville South Padre Is. Intl
Aug 19
BRO7:15 amBrownsville South Padre Is. Intl
8h 23m
2 stops
STL3:38 pmLambert-St Louis
$391
United Airlines
Sep 19
STL3:13 pmLambert-St Louis
6h 46m
1 stop
BRO9:59 pmBrownsville South Padre Is. Intl
Sep 22
BRO12:05 pmBrownsville South Padre Is. Intl
6h 26m
1 stop
STL6:31 pmLambert-St Louis
$399

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 July 17, 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

Thu 9/10

7:00 am-2:11 pm

1 stop7h 11m

Brownsville South Padre Is. Intl

Mon 9/14

6:37 pm-11:43 pm

1 stop5h 06m

$319

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Wed 8/12

11:15 am-3:51 pm

1 stop4h 36m

Brownsville South Padre Is. Intl

Wed 8/19

12:05 pm-10:59 pm

2 stops10h 54m

$324

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Tue 8/4

7:07 am-2:17 pm

1 stop7h 10m

Brownsville South Padre Is. Intl

Wed 8/12

10:43 am-6:05 pm

1 stop7h 22m

$327

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Wed 8/12

7:25 am-3:51 pm

2 stops8h 26m

Brownsville South Padre Is. Intl

Wed 8/19

7:15 am-3:38 pm

2 stops8h 23m

$391

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Sat 9/19

3:13 pm-9:59 pm

1 stop6h 46m

Brownsville South Padre Is. Intl

Tue 9/22

12:05 pm-6:31 pm

1 stop6h 26m

$399

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Sat 9/19

8:00 am-6:13 pm

2 stops10h 13m

Brownsville South Padre Is. Intl

Tue 9/22

12:05 pm-6:31 pm

1 stop6h 26m

$404

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Sat 9/19

8:00 am-6:13 pm

2 stops10h 13m

Brownsville South Padre Is. Intl

Tue 9/22

12:05 pm-10:00 pm

2 stops9h 55m

$409

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Thu 9/10

7:00 am-2:11 pm

1 stop7h 11m

Brownsville South Padre Is. Intl

Mon 9/14

2:47 pm-7:07 pm

1 stop4h 20m

$417

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Tue 8/4

8:35 am-3:57 pm

1 stop7h 22m

Brownsville South Padre Is. Intl

Wed 8/12

7:15 am-3:38 pm

2 stops8h 23m

$419
Quickest round-trip

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Thu 12/31

6:15 am-11:20 am

1 stop5h 05m

Brownsville South Padre Is. Intl

Thu 1/7

5:25 pm-10:06 pm

1 stop4h 41m

$424

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Brownsville from

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 February is another great option to travel to Brownsville, with average flight prices from St. Louis averaging around $258.

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 05m

Direct flights

None
The fastest flight from St. Louis to Brownsville takes 5h 05m
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 05m 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
American AirlinesPriceFrom $276Free CancellationRating
7.1
11,818 reviews
Search American Airlines flights
United AirlinesPriceFrom $278Free CancellationRating
7.4
9,997 reviews
Search United Airlines flights

Traveling to a place near Brownsville?

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

Why use momondo?

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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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