BTR - STL

$172 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 3/17. 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
$269
Overall average: $348
American Airlines
Thu 2/26Sat 2/28
BTR - STL • 1 stop
Cheapest one-way
$172
Typical prices: $398-$405
United Airlines
Tue 3/17
BTR - STL • 1 stop
Top airlines
American Airlines
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
April
Cheapest • 13% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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, Feb 26 - Sat, Feb 28
American Airlines Logo
5:00 am - 11:01 am
BTR
-
STL
6h 01m
1 stop
American Airlines Logo
4:13 pm - 10:39 pm
STL
-
BTR
6h 26m
1 stop
$269American Airlines
Thu, Feb 26 - Sat, Feb 28
American Airlines Logo
5:00 am - 11:01 am
BTR
-
STL
6h 01m
1 stop
American Airlines Logo
8:00 am - 5:26 pm
STL
-
BTR
9h 26m
2 stops
$274American Airlines
Fri, Feb 6 - Tue, Feb 10
Delta Logo
6:41 pm - 11:37 pm
BTR
-
STL
4h 56m
1 stop
Delta Logo
9:59 am - 3:59 pm
STL
-
BTR
6h 00m
1 stop
$279Delta
Fri, Feb 6 - Tue, Feb 10
American Airlines Logo
5:31 pm - 11:12 pm
BTR
-
STL
5h 41m
1 stop
American Airlines Logo
8:31 am - 6:04 pm
STL
-
BTR
9h 33m
2 stops
$284American Airlines
Thu, Mar 5 - Mon, Mar 9
Delta Logo
4:02 pm - 8:41 pm
BTR
-
STL
4h 39m
1 stop
Delta Logo
4:21 pm - 10:03 pm
STL
-
BTR
5h 42m
1 stop
$291Delta
Thu, Jun 18 - Sun, Jun 21
Delta Logo
3:20 pm - 8:49 pm
BTR
-
STL
5h 29m
1 stop
Delta Logo
6:00 am - 12:45 pm
STL
-
BTR
6h 45m
1 stop
$340Delta
Sat, Feb 7 - Tue, Feb 10
United Airlines Logo
9:30 am - 3:39 pm
BTR
-
STL
6h 09m
1 stop
United Airlines Logo
6:00 am - 1:17 pm
STL
-
BTR
7h 17m
1 stop
$349United Airlines
Sat, Feb 7 - Tue, Feb 10
United Airlines Logo
9:30 am - 3:39 pm
BTR
-
STL
6h 09m
1 stop
United Airlines Logo
11:20 am - 7:33 pm
STL
-
BTR
8h 13m
2 stops
$354United Airlines
Sat, Feb 7 - Tue, Feb 10
United Airlines Logo
9:30 am - 11:59 pm
BTR
-
STL
14h 29m
2 stops
United Airlines Logo
7:00 am - 7:33 pm
STL
-
BTR
12h 33m
2 stops
$360United Airlines
Thu, Jun 18 - Sun, Jun 21
Delta Logo
10:31 am - 3:58 pm
BTR
-
STL
5h 27m
1 stop
Delta Logo
6:00 am - 12:45 pm
STL
-
BTR
6h 45m
1 stop
$364Delta
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 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 April, where tickets cost $298 (return) on average. On the other hand, the most expensive months are March and December, where the average cost of round-trip tickets is $468 and $363 respectively.

Good to know

Low seasonAugust
Cheapest flight$172
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly and prices are also 13% 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 $172 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 $313 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 8110 reviews
8.5Crew
7.2Food
7.8Entertainment
8.1Boarding
7.9Comfort
Airline reviews

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

2.0 MediocreGary, Jan 2026
CLE - DTW
Read more Delta reviews

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

My flight out of Baton Rouge to Atlanta was delayed by a half hour. This got us into Atlanta airport 30 minutes late. I ran through the airport to get to my connecting flight. As I approached the boarding gate, I saw the boarding door was still open and a passenger was being checked in. But when I got to the gate, the boarding agent told me they had already given away my seat and there were no empty seats on that flight. So I had to take a later flight. That has never happened to me before. Very frustrating.

Connection through Atlanta was difficult. Mechanical issue on plane caused a two hour delay. New gate was a mile away.

No WiFi. Comfort plus should have alcohol provided, crew only offered water or tea. Who the heck wants tea?

The flight was delayed and oversold. I volunteered to give up my seat for compensation. Thinking I could get a good night's sleep instead of arriving home at 2 am. It took over an hour to get the new reservation confirmed, three different gate attendants, and two red coats. It took even longer to confirm the overnight hotel, and when I arrived, the line was 45 minutes long, with two people checking in, and at least 15 people slowly, very slowly—no food except frozen convenience food, no coupon for food from airlines. Slept, headed back to the airport, and that flight had an equipment change and a gate change just as they were about to board. It took an additional hour to board as they cleaned the plane from storage.

There was no wifi available on this flight. And there were no screens, no onboard entertainment, no entertainment options at all. It was like travelling in the 1990s again, except without even a main screen for options. Seats, as usual, were tight and uncomfortable.

Good seat comfort ORF to ATL. Bad seat ATL to SEA (terrible lumbar support, hard, ouch)..

Because I was moved to an exit row, the snacks in economy comfort, the selection of snacks was better.

I upgraded to first. Quick and easy boarding. Comfortable seat with power and a nice IPA.

Probably not the fault of Delta but there was delay after delay after delay and I ended up getting home 4 hours later then I should have at 1:30 in the morning

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

I wish there were outlets to charge my iPhone. The crew was great; we had a female pilot who was great with explaining what was happening and delays,

The flight crew where really good. Better then the crew from BNE to SFO

Delayed, toilets did not flush, pilot parked to far away from Gate

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

left on time, reasonable boarding process arrived early luggage came out quickly

I like flying first class, and United has a nice one

It was a little concerning to hear the ground crew arguing with the flight crew over baggage space. Instead of taking them and checking them, they started checking for space in the first class cabin moving items around like the flight crew didn't know what they were doing. I was embarrassed for them.

2 hour delay due to equipment failure. No updates via the app and airport screens (which continued to show a departure time in the past). AA eventually switched planes and the new plane was not catered or cleaned correctly.

I booked an aisle seat and was given a middle. At 6'4" 230lbs, it is not ideal to fly in the middle row for myself and passengers.

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

The aircraft had several problems - from excess fuel to non operational ac. Two hours of delay in Chicago could have been avoided with proper planning and aircraft maintenance.

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Long delays, lack of information about the status of the flight. The flight was delayed 4 times.

Could we please end the loud announcements about credit card offers on your flights? We are trying to sleep, work, watch videos, etc. and if we need a credit card, we will ask for one. Flying is already not what it used to be.

I would like the crew to talk LESS over the PA and specifically about credit card offers. I am trying to work, sleep, watch a movie and the PA was booming about a credit card offer. Could we go back to the days when the customer was more important than selling a credit card?

No enough space plus only allowing one laggage instead of two like other airlines.

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

Information on your arrival and departure airports