BTR - STL

$269 Find Cheap Flights from Baton Rouge to St. Louis

This is the cheapest round-trip 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 1/15. 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
$269
Overall average: $273
Delta
Thu 1/15Sun 1/18
BTR - STL • 1 stop
Cheapest one-way
$272
Typical prices: $169-$434
Delta
Sun 1/11
BTR - STL • 1 stop
Top airlines
Delta
Cheapest • from $269 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
January
Cheapest • 19% price drop
April
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

Thu, Jan 15 - Sun, Jan 18
Delta Logo
5:51 pm - 11:39 pm
BTR
-
STL
5h 48m1 stop
Delta Logo
5:00 pm - 10:01 pm
STL
-
BTR
5h 01m1 stop
$269Delta
Mon, Jan 19 - Mon, Jan 26
United Airlines Logo
5:15 pm - 10:00 pm
BTR
-
STL
4h 45m1 stop
United Airlines Logo
6:00 am - 1:17 pm
STL
-
BTR
7h 17m1 stop
$291United Airlines
Mon, Jan 19 - Mon, Jan 26
United Airlines Logo
5:15 pm - 10:00 pm
BTR
-
STL
4h 45m1 stop
United Airlines Logo
11:20 am - 9:32 pm
STL
-
BTR
10h 12m2 stops
$297United Airlines
Thu, Jan 15 - Sun, Jan 18
American Airlines Logo
6:00 am - 11:05 am
BTR
-
STL
5h 05m1 stop
American Airlines Logo
11:05 am - 8:59 pm
STL
-
BTR
9h 54m2 stops
$333American Airlines
Sat, Feb 21 - Tue, Feb 24
United Airlines Logo
4:13 pm - 10:14 pm
BTR
-
STL
6h 01m1 stop
United Airlines Logo
6:00 am - 11:27 am
STL
-
BTR
5h 27m1 stop
$364United Airlines
Sat, Feb 21 - Tue, Feb 24
United Airlines Logo
4:13 pm - 10:14 pm
BTR
-
STL
6h 01m1 stop
United Airlines Logo
8:30 am - 5:32 pm
STL
-
BTR
9h 02m2 stops
$370United Airlines
Thu, Jan 15 - Sun, Jan 18
United Airlines Logo
9:30 am - 11:59 pm
BTR
-
STL
14h 29m2 stops
United Airlines Logo
8:30 am - 5:53 pm
STL
-
BTR
9h 23m2 stops
$375United Airlines
Tue, Jan 6 - Sat, Jan 10
Delta Logo
10:32 am - 2:48 pm
BTR
-
STL
4h 16m1 stop
Delta Logo
5:00 pm - 10:01 pm
STL
-
BTR
5h 01m1 stop
$399Delta
Tue, Jan 6 - Sat, Jan 10
United Airlines Logo
1:55 pm - 10:58 pm
BTR
-
STL
9h 03m2 stops
United Airlines Logo
4:42 pm - 9:32 pm
STL
-
BTR
4h 50m1 stop
$407United Airlines
Tue, Jan 6 - Sat, Jan 10
United Airlines Logo
1:55 pm - 10:58 pm
BTR
-
STL
9h 03m2 stops
United Airlines Logo
11:20 am - 9:32 pm
STL
-
BTR
10h 12m2 stops
$412United 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.

What’s the cheapest day of the week to fly from Baton Rouge to St. Louis?

The average price of all round-trip flights from Baton Rouge to St. Louis clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to St. Louis on a Tuesday and more expensive on a Sunday. On your return trip to Baton Rouge, you should consider flying back on a Wednesday, and avoid Thursdays for better deals.

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 $273 (return) on average. On the other hand, the most expensive months are March and December, where the average cost of round-trip tickets is $447 and $356 respectively.

Good to know

Low seasonAugust
Cheapest flight$269
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly and prices are also 12% 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 $272 for a one-way ticket and $269 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 $433 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 8014 reviews
7.9Entertainment
7.3Food
7.9Comfort
8.5Crew
8.1Boarding
Airline reviews

Flight delays both to Detroits and return flight . The flight to Detroit was associated with mechanical difficulty

2.0 MediocreGina, Dec 2025
DTW - ELM
Read more Delta reviews

Flight delays both to Detroits and return flight . The flight to Detroit was associated with mechanical difficulty

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

Wasn't a Delta issue I don't think, but seems there was a Delta flight at each of the 2 Dallas airports at the same exact time, both to Atlanta. I was evidently booked on the one at Love Airport, but the Carey transport shuttle took me to DFW instead and I ended up missing the flight by just a few minutes. Was able to book a Southwest flight from Love Airport, but was a big loss of time and an inconvenience.

Great. I had to modify a flight. That was easy and free. Thank You

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Very turbulent trip made it pretty bearable, plus the lack of refreshments served and the lack of any air conditioning before takeoff which took an hour or more.

Flight was late - I was downgraded from first class to coach

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

For whatever reason, the flight was not catered -we were told it would be a 45 minute delay waiting for catering - so no food. There were opened candy and peanuts in the seatback pocket. Flight landed early in DFW but due to the assigned gate not being available, we sat on the ground for 30 minutes waiting for the gate to open - making the flight actually arrive at the gate late.

The pilot greased the landing and the crew was fantastic.

I bought wifi and most of the flight could not even use it my apps would just spin. I couldn't even listen to music. super frustrating.

delayed due to weather. Could not communicate with family since the wifi was broken

Experience was good, however I had a delay due to weather happening and had to re purchase a seat on a new plane for a higher price (could be my own issue and misunderstanding) but other than that situation. First time flyer (by myself) was terrific!! The last from ORD to ALO didn't have wifi, but it was only 45 minutes so I'm sure that was part of the reason. Overall my experience was great! Next time I will remember to buy tickets with longer layovers. The delays really saved my overall anxiety. :)

Flight was on time is the only good thing. Person loading the plane called 1-6 to board at the same time, made it chaotic. Plane was too small for even putting backpacks in overhead. Seat for normal sized people were too small. The WIFI didn't work. When we landed had to wait because not enough ground crew.

Did not understand a single word the attendant said on the pa system. I was glad it was not an emergency.

Gate was overcrowded. Gate agents performed very well. Flight crew was top notch! Efficient & professional & courteous. Both meals not thermalized well. Dinner main dish was actually cold in the center. Almost inedible. Breakfast sandwich was lukewarm.

The boarding was as always, the crew tried their best but not enough. The food was a disaster I had dietary restrictions that were half met because the company did not loaded the food for the flight. The entertainment screen was fine but content was not and also they removed the free messaging option from the flight and they charged 30 dollars for that crappy bandwidth. This flight is not worth the cost and the company is going down on quality.

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

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

Information on your arrival and departure airports