BTR - STL

$163 Find Cheap Flights from Baton Rouge to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Baton Rouge to St. Louis departing on 9/17. 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, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Baton Rouge to St. Louis, 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 Baton Rouge to St. Louis, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$305
Typical prices: $353-$286
Delta
Tue 6/23Tue 6/30
BTR - STL • 1 stop
Cheapest one-way
$163
Overall average: $444
American Airlines
Thu 9/17
BTR - STL • 1 stop
Top airlines
Cheapest • from $305 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Baton Rouge and St. Louis. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $293 (round-trip)
Shortest trip • 4h 36m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 21% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Baton Rouge to St. Louis (BTR-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Baton Rouge to St. Louis 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 Baton Rouge to St. Louis

Tue, Jun 23 - Tue, Jun 30
Delta Logo
7:06 pm - 11:56 pm
BTR
-
STL
4h 50m
1 stop
Delta Logo
3:57 pm - 9:55 pm
STL
-
BTR
5h 58m
1 stop
$305Delta
Fri, May 29 - Sun, May 31
Delta Logo
7:04 pm - 11:59 pm
BTR
-
STL
4h 55m
1 stop
Delta Logo
6:00 am - 12:49 pm
STL
-
BTR
6h 49m
1 stop
$312Delta
Thu, Jun 18 - Sun, Jun 21
American Airlines Logo
6:28 pm - 11:44 pm
BTR
-
STL
5h 16m
1 stop
American Airlines Logo
5:29 am - 11:00 am
STL
-
BTR
5h 31m
1 stop
$319American Airlines
Tue, Jul 21 - Wed, Jul 22
Delta Logo
4:00 pm - 10:15 pm
BTR
-
STL
6h 15m
1 stop
Delta Logo
6:00 am - 12:47 pm
STL
-
BTR
6h 47m
1 stop
$325Delta
Tue, Jul 21 - Wed, Jul 22
American Airlines Logo
2:12 pm - 12:16 am
BTR
-
STL
10h 04m
2 stops
American Airlines Logo
5:29 am - 10:58 am
STL
-
BTR
5h 29m
1 stop
$330American Airlines
Tue, Jun 2 - Fri, Jun 5
Delta Logo
7:04 pm - 11:59 pm
BTR
-
STL
4h 55m
1 stop
Delta Logo
5:20 pm - 10:00 pm
STL
-
BTR
4h 40m
1 stop
$391Delta
Tue, Jul 28 - Wed, Jul 29
United Airlines Logo
12:10 pm - 11:36 pm
BTR
-
STL
11h 26m
2 stops
United Airlines Logo
6:14 am - 11:20 am
STL
-
BTR
5h 06m
1 stop
$410United Airlines
Tue, Jun 23 - Tue, Jun 30
American Airlines Logo
2:18 pm - 12:16 am
BTR
-
STL
9h 58m
2 stops
American Airlines Logo
7:04 am - 1:48 pm
STL
-
BTR
6h 44m
1 stop
$418American Airlines
Tue, Aug 25 - Sat, Aug 29
United Airlines Logo
12:00 pm - 6:04 pm
BTR
-
STL
6h 04m
1 stop
United Airlines Logo
8:00 am - 3:30 pm
STL
-
BTR
7h 30m
2 stops
$432United Airlines
Tue, Aug 25 - Sat, Aug 29
United Airlines Logo
12:00 pm - 10:00 pm
BTR
-
STL
10h 00m
2 stops
United Airlines Logo
8:00 am - 3:30 pm
STL
-
BTR
7h 30m
2 stops
$437United Airlines
Booking Insights

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

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

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

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Baton Rouge to St. Louis departing in June.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Baton Rouge to St. Louis, 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 Baton Rouge to St. Louis is January, where tickets cost $263 (return) on average. On the other hand, the most expensive months are April and March, where the average cost of round-trip tickets is $392 and $384 respectively.

Good to know

Low seasonFebruary
Cheapest flight$163
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Baton Rouge to St. Louis

When to book flights from Baton Rouge to St. Louis

Are your dates flexible? Find out the best times to travel from Baton Rouge to St. Louis 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 Baton Rouge to St. Louis

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

    In the last 3 days, the lowest price for a flight from Baton Rouge to St. Louis was $163 for a one-way ticket and $305 for a round-trip.

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

    A passport is not required to fly from Baton Rouge to St. Louis.

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

    Baton Rouge airport is called Baton Rouge Ryan and the only airport in St. Louis is Lambert-St Louis.

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

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

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

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

  • Which is the best airline for flights from Baton Rouge to St. Louis, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Baton Rouge to St. Louis are Delta and United Airlines. With an average price for the route of $338 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $376 and an overall rating of 7.4.

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

    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 Baton Rouge to St. Louis.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Baton Rouge 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 Baton Rouge to St. Louis?

    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 St. Louis with an airline and back to Baton Rouge with another airline. Booking your flights between Baton Rouge and STL 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 Baton Rouge to St. Louis?

    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 St. Louis from Baton Rouge up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Baton Rouge to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Baton Rouge to St. Louis. 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 Baton Rouge to St. Louis? 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.
7.9
DeltaOverall score based on 8451 reviews
8.5Crew
7.8Entertainment
7.8Comfort
8.1Boarding
7.2Food
Airline reviews

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

6.0 GoodAnonymous, May 2026
PDX - MSP
Read more Delta reviews

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

It was a pleasant surprise to have complimentary Wi-Fi on the flight

Much better than Latam, the worse airline company ever. I hope I don't have the need to fly Latam ever in my life again.

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the seat.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

It was good overall except from Omaha to Denver when flight a was a repeatedly delayed apparently due to some issue at Denver. Communications could have been handled better. I had to board then deboard with luggage and board again

Left an hour and a half after the listed time. Up side was it had TV screens on the seat.

No screens or meal options. Freezing cold. Dirty seats. Left late.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Overall a good experience, but no wifi available for free or for purchase and we got wet from condensation or other water source during descent.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

The passenger in front of of me reclined their seat back all the way the entire flight. Their headrest was in my face the entire flight! I barely had room for the little plastic cup of water to fit on my tray table; can you make the seats and space between the rows any smaller??? You can’t even get up to use the restroom! Worst flight I’ve had in a very long time!

We had several flights and they were all on-time and flawless

My Frequent Flyer nber wasn't put on as I was told it was..... This resulted in a last group boarding and no priority tags on My bags.

Terrible steward... Plane was quite empty... I asked to move "back" in the plane and the steward said no... Unnecessary power trip of mediocre people.

The small flights with Valet Luggage has a poor service

not sure why you ask about food, I n3ver get food on flights except maybe cookies or pretzels. wifi was slow and in and out most of the flight not good.

Cancelled BOYH legs of our flight home 30 min before initial boarding

Cancelled the flight half hour before boarding. Then cancelled the connecting flight too.

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

I would like a refund for the extra cost the seat I paid for. An oversized person sat next to me and I couldn’t fit on my seat and had to move to another seat.

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

Information on your arrival and departure airports