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Cheap flights from St. Louis to Brownsville from $158

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 11/9. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
9:30 am - 2:17 pmSTL-BRO
4h 47m1 stop
American Airlines Logo
5:27 am - 12:34 pmBRO-STL
7h 07m1 stop
$259American Airlines
Find Deal
jue., dic. 4 - dom., dic. 7
American Airlines Logo
11:55 am - 6:14 pmSTL-BRO
6h 19m1 stop
American Airlines Logo
6:00 am - 6:16 pmBRO-STL
12h 16m2 stops
$264American Airlines
Find Deal
mar., ene. 6 - mar., ene. 27
American Airlines Logo
6:00 am - 6:14 pmSTL-BRO
12h 14m2 stops
American Airlines Logo
6:00 am - 2:50 pmBRO-STL
8h 50m2 stops
$269American Airlines
Find Deal
mar., ene. 6 - mar., ene. 27
American Airlines Logo
9:43 am - 2:27 pmSTL-BRO
4h 44m1 stop
American Airlines Logo
2:57 pm - 8:53 pmBRO-STL
5h 56m1 stop
$289American Airlines
Find Deal
mar., oct. 28 - sáb., nov. 1
American Airlines Logo
2:15 pm - 10:55 pmSTL-BRO
8h 40m2 stops
American Airlines Logo
2:57 pm - 8:53 pmBRO-STL
5h 56m1 stop
$294American Airlines
Find Deal
mar., oct. 28 - sáb., nov. 1
American Airlines Logo
9:58 am - 6:08 pmSTL-BRO
8h 10m2 stops
American Airlines Logo
5:38 am - 4:04 pmBRO-STL
10h 26m2 stops
$299American Airlines
Find Deal
mar., oct. 28 - sáb., nov. 1
United Airlines Logo
10:00 am - 8:25 pmSTL-BRO
10h 25m2 stops
United Airlines Logo
9:35 am - 4:07 pmBRO-STL
6h 32m1 stop
$307United Airlines
Find Deal
sáb., nov. 1 - sáb., nov. 8
American Airlines Logo
9:30 am - 2:17 pmSTL-BRO
4h 47m1 stop
American Airlines Logo
5:27 am - 1:29 pmBRO-STL
8h 02m2 stops
$319American Airlines
Find Deal
jue., dic. 4 - dom., dic. 7
American Airlines Logo
5:09 pm - 10:55 pmSTL-BRO
5h 46m1 stop
American Airlines Logo
5:20 am - 12:37 pmBRO-STL
7h 17m1 stop
$329American Airlines
Find Deal
sáb., nov. 1 - sáb., nov. 8
United Airlines Logo
10:00 am - 8:25 pmSTL-BRO
10h 25m2 stops
United Airlines Logo
12:15 pm - 10:45 pmBRO-STL
10h 30m2 stops
$446United Airlines
Find Deal
sáb., nov. 1 - sáb., nov. 8

American Airlines flights from St. Louis to Brownsville

Our best American Airlines deals on St. Louis to Brownsville flight tickets
American Airlines
Dec 4
STL9:30 amLambert-St Louis
4h 47m
1 stop
BRO2:17 pmBrownsville South Padre Is. Intl
Dec 7
BRO5:27 amBrownsville South Padre Is. Intl
7h 07m
1 stop
STL12:34 pmLambert-St Louis
$259
Find similar
American Airlines
Jan 6
STL11:55 amLambert-St Louis
6h 19m
1 stop
BRO6:14 pmBrownsville South Padre Is. Intl
Jan 27
BRO6:00 amBrownsville South Padre Is. Intl
12h 16m
2 stops
STL6:16 pmLambert-St Louis
$264
Find similar
American Airlines
Jan 6
STL6:00 amLambert-St Louis
12h 14m
2 stops
BRO6:14 pmBrownsville South Padre Is. Intl
Jan 27
BRO6:00 amBrownsville South Padre Is. Intl
8h 50m
2 stops
STL2:50 pmLambert-St Louis
$269
Find similar

United Airlines flights from St. Louis to Brownsville

Our best United Airlines deals on St. Louis to Brownsville flight tickets
United Airlines
Nov 1
STL10:00 amLambert-St Louis
10h 25m
2 stops
BRO8:25 pmBrownsville South Padre Is. Intl
Nov 8
BRO9:35 amBrownsville South Padre Is. Intl
6h 32m
1 stop
STL4:07 pmLambert-St Louis
$307
Find similar
United Airlines
Nov 1
STL10:00 amLambert-St Louis
10h 25m
2 stops
BRO8:25 pmBrownsville South Padre Is. Intl
Nov 8
BRO12:15 pmBrownsville South Padre Is. Intl
10h 30m
2 stops
STL10:45 pmLambert-St Louis
$446
Find similar
United Airlines
Nov 10
STL4:35 pmLambert-St Louis
7h 01m
1 stop
BRO11:36 pmBrownsville South Padre Is. Intl
Nov 17
BRO5:15 pmBrownsville South Padre Is. Intl
19h 24m
2 stops
STL12:39 pmLambert-St Louis
$467
Find similar

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 octubre 14, 2025.
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

jue. 12/4

9:30 am-2:17 pm

1 stop4h 47m

Brownsville South Padre Is. Intl

dom. 12/7

5:27 am-12:34 pm

1 stop7h 07m

$259

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

mar. 1/6

11:55 am-6:14 pm

1 stop6h 19m

Brownsville South Padre Is. Intl

mar. 1/27

6:00 am-6:16 pm

2 stops12h 16m

$264

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

mar. 1/6

6:00 am-6:14 pm

2 stops12h 14m

Brownsville South Padre Is. Intl

mar. 1/27

6:00 am-2:50 pm

2 stops8h 50m

$269

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

mar. 10/28

9:43 am-2:27 pm

1 stop4h 44m

Brownsville South Padre Is. Intl

sáb. 11/1

2:57 pm-8:53 pm

1 stop5h 56m

$289

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

mar. 10/28

2:15 pm-10:55 pm

2 stops8h 40m

Brownsville South Padre Is. Intl

sáb. 11/1

2:57 pm-8:53 pm

1 stop5h 56m

$294

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

mar. 10/28

9:58 am-6:08 pm

2 stops8h 10m

Brownsville South Padre Is. Intl

sáb. 11/1

5:38 am-4:04 pm

2 stops10h 26m

$299

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

sáb. 11/1

10:00 am-8:25 pm

2 stops10h 25m

Brownsville South Padre Is. Intl

sáb. 11/8

9:35 am-4:07 pm

1 stop6h 32m

$307

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

jue. 12/4

9:30 am-2:17 pm

1 stop4h 47m

Brownsville South Padre Is. Intl

dom. 12/7

5:27 am-1:29 pm

2 stops8h 02m

$319

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

sáb. 11/1

5:09 pm-10:55 pm

1 stop5h 46m

Brownsville South Padre Is. Intl

sáb. 11/8

5:20 am-12:37 pm

1 stop7h 17m

$329

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

sáb. 11/1

10:00 am-8:25 pm

2 stops10h 25m

Brownsville South Padre Is. Intl

sáb. 11/8

12:15 pm-10:45 pm

2 stops10h 30m

$446

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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 February is another great option to travel to Brownsville, with average flight prices from St. Louis averaging around $319.

What is the cheapest day to depart on your flight to Brownsville?

The cheapest day to depart from St. Louis to Brownsville is on a Tuesday. Travelers who choose to depart for Brownsville on a Tuesday will often find tickets for as low as $320. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Brownsville on Sunday is $429.

What is the cheapest time of day to depart on your flight to Brownsville?

Flying to Brownsville from St. Louis at noon is the least expensive time of day to depart. momondo users have found prices as low as $281 when looking at flights departing at noon. Flights to Brownsville are more costly in the afternoon, with an average ticket price of $388. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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

Direct flights

None
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 39m 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
8,976 reviews
Search United Airlines flights
American AirlinesPriceFrom $273Free CancellationRating
7.2
11,042 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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Why should I use momondo to find a flight deal from St. Louis to Brownsville?

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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Yes. momondo can track prices for St. Louis to Brownsville flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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