STL - BRO

$259 Find Cheap Flights from St. Louis to Brownsville

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Brownsville departing on 9/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Brownsville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Brownsville, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Brownsville, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Brownsville that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Brownsville

Tue, Sep 2 - Tue, Sep 9
American Airlines Logo
5:30 pm - 10:59 pmSTL-BRO
5h 29m1 stop
American Airlines Logo
5:26 am - 11:52 amBRO-STL
6h 26m1 stop
$259American Airlines
Find Deal
Tue, Sep 2 - Tue, Sep 9
American Airlines Logo
4:00 pm - 10:59 pmSTL-BRO
6h 59m1 stop
American Airlines Logo
5:26 am - 3:35 pmBRO-STL
10h 09m2 stops
$264American Airlines
Find Deal
Tue, Sep 2 - Tue, Sep 9
American Airlines Logo
7:23 am - 6:07 pmSTL-BRO
10h 44m2 stops
American Airlines Logo
5:26 am - 1:23 pmBRO-STL
7h 57m2 stops
$324American Airlines
Find Deal
Fri, Aug 29 - Tue, Sep 2
American Airlines Logo
5:32 pm - 10:39 pmSTL-BRO
5h 07m1 stop
American Airlines Logo
10:33 am - 7:21 pmBRO-STL
8h 48m2 stops
$356American Airlines
Find Deal
Sat, Aug 2 - Sun, Aug 10
American Airlines Logo
7:38 pm - 12:15 amSTL-BRO
4h 37m1 stop
American Airlines Logo
3:06 pm - 9:02 amBRO-STL
17h 56m1 stop
$357American Airlines
Find Deal
Thu, Sep 11 - Mon, Sep 15
American Airlines Logo
9:56 am - 6:25 pmSTL-BRO
8h 29m2 stops
American Airlines Logo
10:41 am - 10:50 pmBRO-STL
12h 09m1 stop
$417American Airlines
Find Deal
Sat, Aug 2 - Sun, Aug 10
American Airlines Logo
7:38 pm - 12:15 amSTL-BRO
4h 37m1 stop
American Airlines Logo
5:37 am - 1:12 pmBRO-STL
7h 35m2 stops
$448American Airlines
Find Deal
Thu, Sep 11 - Mon, Sep 15
American Airlines Logo
9:56 am - 6:25 pmSTL-BRO
8h 29m2 stops
American Airlines Logo
10:41 am - 11:48 pmBRO-STL
13h 07m2 stops
$482American Airlines
Find Deal
Tue, Aug 12 - Tue, Aug 12
American Airlines Logo
5:15 am - 9:57 amSTL-BRO
4h 42m1 stop
American Airlines Logo
3:06 pm - 8:22 pmBRO-STL
5h 16m1 stop
$541American Airlines
Find Deal
Fri, Aug 29 - Tue, Sep 2
United Airlines Logo
11:30 am - 11:34 pmSTL-BRO
12h 04m2 stops
United Airlines Logo
5:15 pm - 2:19 pmBRO-STL
21h 04m2 stops
$577United Airlines
Find Deal
Useful Info

KAYAK's insights & trends for St. Louis to Brownsville flights

Get data-powered insights and trends into flights from St. Louis to Brownsville to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from St. Louis to Brownsville?

What is the cheapest month to fly from St. Louis to Brownsville?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Brownsville, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Brownsville is October, where tickets cost $280 (return) on average. On the other hand, the most expensive months are March and December, where the average cost of round-trip tickets is $453 and $443 respectively.

Good to know

Low seasonMay
High seasonJanuary
Cheapest flight$259
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from St. Louis to Brownsville

When to book flights from St. Louis to Brownsville

Are your dates flexible? Find out the best times to travel from St. Louis to Brownsville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Brownsville

  • What is the cheapest flight from St. Louis to Brownsville?

    In the last 3 days, the lowest price for a flight from St. Louis to Brownsville was $259 for a round-trip ticket.

  • Do I need a passport to fly between St. Louis and Brownsville?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from St. Louis to Brownsville?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Brownsville, also known as Brownsville South Padre Is. Intl.

  • Which aircraft models fly most regularly from St. Louis to Brownsville?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Brownsville?

    oneworld, and Star Alliance are the airline alliances operating flights between St. Louis and Brownsville, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Brownsville, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Brownsville are United Airlines and American Airlines. With an average price for the route of $349 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $416 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from St. Louis to Brownsville?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Brownsville.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Brownsville?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Brownsville from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Brownsville?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Brownsville with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and BRO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Brownsville?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Brownsville from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from St. Louis to Brownsville

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Brownsville. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Brownsville? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8849 reviews
7.7Boarding
7.0Entertainment
7.3Comfort
6.6Food
8.1Crew
Airline reviews

Gate agent did not hold flight for connection, provided no assistance to get new flight

2.0 MediocreJack, Jun 2025SAT - IAH
Read more United Airlines reviews

Gate agent did not hold flight for connection, provided no assistance to get new flight

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

I don’t understand the purpose of the orange “priority” tag on my bag. This tagged, my bag is last or near to the last bag to come down the carousel at IAH.

Oh my gosh, I loved my experience with United! they made me want to travel more often.

The planes are so dirty! Food crumbs and finger print smudges, Dust over the vents and carpet stains. It’s disgusting.

The bag drop personal were not helpful. There was no food on the flight. Boeing aircraft, lousy as always. Everything else was fine.

Asked several times dairy free options and was ignored. Was told chips was the only thing I could have that I should have put it on my profile “which it is”. Very unprofessional. WiFi didn’t work have the flight. Overall a very bad experience.

Plane still had screens for watching movies. Good selection too.

Flight crew was amazing! I don't like that the Polaris seats are side-by-side.

The flight delay in Dallas created a domino effect that impacted all connecting flights, leading to an increase in the number of connections. As a result, I missed my flight from Casablanca to Marrakech due to the tight turnaround when landing in Casablanca. CMN Airport was understaffed; only one employee was available to assist passengers while others just stood by and watched. It was an extremely frustrating situation. Many passengers were crying and banging their hands on the counter while talking to customer service representative Allabough. Unfortunately, Allabough couldn’t change my flight in the system. At the same time, I was on the phone with an American Airlines customer service representative named Solomon, who said he couldn’t make the change either. So, I decided to take an ONYA Voyages train from Casablanca to Marrakech to reach my destination on Friday, June 26. It turned out to be an unpredictable trip.

Pretty bad gate mgmt upon arrival. No open gates and we had to wait at midnight. Shouldn’t be a surprise that an aircraft is coming in.

Comfortable plane ride however on delays disappointment no real details as to why the delays when other flights are leaving the airport

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

I’m impressed that we were on time in Sacramento after having a late departure in Newark and our made it. The staff was friendly and warm.

5.5 hour delay with no explanation on why, along with no proactive effort to reaccomodate me.

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious.

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious. this return flight not as tasty, but filling.

So awful Unreliable Unfriendly Bad Mad Mean Smelly Hot Late Overbooked Understaffed Expensive Cramped Narcs If they were a fruit they’d be rotten durian

It’s a great flight. Service is good. Staff is awesome.

Everything you need to know for your flight from St. Louis to Brownsville

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.