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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% 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.

Everything you should know

Cheapest round-trip
$305
Typical prices: $346-$290
Delta
Tue 6/23Tue 6/30
BTR - STL • 1 stop
Cheapest one-way
$163
Overall average: $444
Delta
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 37m (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
1:32 pm - 6:07 pm
BTR
-
STL
4h 35m
1 stop
Delta Logo
6:00 am - 12:47 pm
STL
-
BTR
6h 47m
1 stop
$305Delta
Thu, Jun 18 - Sun, Jun 21
Delta Logo
7:08 pm - 11:56 pm
BTR
-
STL
4h 48m
1 stop
Delta Logo
9:21 am - 3:12 pm
STL
-
BTR
5h 51m
1 stop
$309Delta
Thu, Jun 4 - Sun, Jun 7
American Airlines Logo
7:36 pm - 11:59 pm
BTR
-
STL
4h 23m
1 stop
American Airlines Logo
5:29 am - 11:00 am
STL
-
BTR
5h 31m
1 stop
$317American Airlines
Fri, Jun 12 - Sun, Jun 14
Delta Logo
7:08 pm - 11:56 pm
BTR
-
STL
4h 48m
1 stop
Delta Logo
10:51 am - 3:12 pm
STL
-
BTR
4h 21m
1 stop
$368Delta
Tue, Jun 23 - Tue, Jun 30
American Airlines Logo
6:28 pm - 11:44 pm
BTR
-
STL
5h 16m
1 stop
American Airlines Logo
2:32 pm - 10:09 pm
STL
-
BTR
7h 37m
2 stops
$395American 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
Tue, Jun 23 - Tue, Jun 30
American Airlines Logo
2:18 pm - 12:16 am
BTR
-
STL
9h 58m
2 stops
American Airlines Logo
2:32 pm - 10:09 pm
STL
-
BTR
7h 37m
2 stops
$509American Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
12:00 pm - 6:04 pm
BTR
-
STL
6h 04m
1 stop
United Airlines Logo
6:54 pm - 11:13 am
STL
-
BTR
16h 19m
2 stops
$542United Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
12:00 pm - 11:38 pm
BTR
-
STL
11h 38m
2 stops
United Airlines Logo
6:54 pm - 11:13 am
STL
-
BTR
16h 19m
2 stops
$547United 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 $318 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 $368 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 8453 reviews
8.1Boarding
7.8Comfort
7.8Entertainment
8.5Crew
7.2Food
Airline reviews

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

10.0 ExcellentBenjamin, May 2026
CLT - MSP
Read more Delta reviews

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

For some reason, TSA Atlanta didn’t have my bag on the flight on time and they don’t have to provide Delta a reason for that.

WiFi didn’t work on two of four planes. Flight attendants were not overly friendly or welcoming. Planes were extremely slow to board and deplane.

Delta does a great job with entertainment and free wifi. I can still be in touch with my colleagues while in the air.

Aside from a completely packed plane, I really have no complaints.

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.

Late plane. Only one crew on the ground so we b had to wait for Denver flight to come in, board, and depart. At 78 yrs of age I was not pleased trying to get my connection. What really made me angry was the notification you sent me to hurry up or I would miss my connection. Why tell me to hurry up when you got me in late. It was not a good way of treating customers.

No complaints other than luggage carousel was incorrectly guiding passengers to the wrong carousel on the screen.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

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.

The wifi experience is awful. I had to try again and again, taking over 30 minutes, to connect to the wifi. I had to watch the same two ads over and over until I was finally successful. Once connected, it was anything but "high speed" and disconnected at least three times during the flight.

Fine. Nothing to write home about. The plane left on time, and arrived on time.

I was downgraded from first class to coach due to an airplane change. They pulled me out of line and I was the very last person to board the plane stuck in the middle seat with no overhead place to put my carry-.on. Very poor customer service.

Seat comfort was poor (no lumbar or lower back support).

The airplane seats were spacious and comfortable, and the flight attendants were friendly and attentive. The food was delicious like never before. The blankets and toiletries were thoughtfully provided. The captain's navigation was steady and reliable. In short, having flown with Starlux, I won't consider any other airline next time.

STOP MAKING THE SEATING SO CRAMPED. WE NEED A PASSENGER BILL OF RIGHTS!

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.

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

Information on your arrival and departure airports