STL - BTR

$249 Find Cheap Flights from St. Louis to Baton Rouge

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 Baton Rouge departing on 1/24. 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 Baton Rouge

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

Cheapest round-trip
$249
Overall average: $388
Delta
Sat 1/24Tue 1/27
STL - BTR • 1 stop
Cheapest one-way
$308
Typical prices: $210-$318
United Airlines
Sat 12/6
STL - BTR • 1 stop
Top airlines
Delta
Cheapest • from $249 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
October
Cheapest • 27% price drop
May
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 Baton Rouge!
Flight Deals
Booking Insights
Flight Deals

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

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

Sat, Jan 24 - Tue, Jan 27
Delta Logo
9:59 am - 4:19 pmSTL-BTR
6h 20m1 stop
Delta Logo
5:00 pm - 11:37 pmBTR-STL
6h 37m1 stop
$249Delta
Find Deal
Wed, Dec 10 - Tue, Dec 16
Delta Logo
7:05 am - 1:36 pmSTL-BTR
6h 31m1 stop
Delta Logo
6:07 am - 10:45 amBTR-STL
4h 38m1 stop
$264Delta
Find Deal
Wed, Dec 10 - Tue, Dec 16
United Airlines Logo
6:15 am - 11:17 amSTL-BTR
5h 02m1 stop
United Airlines Logo
12:10 pm - 10:45 pmBTR-STL
10h 35m2 stops
$269United Airlines
Find Deal
Tue, Dec 9 - Sat, Dec 13
Delta Logo
1:59 pm - 7:57 pmSTL-BTR
5h 58m1 stop
Delta Logo
6:07 am - 10:24 amBTR-STL
4h 17m1 stop
$279Delta
Find Deal
Tue, Dec 9 - Sat, Dec 13
United Airlines Logo
6:15 am - 1:14 pmSTL-BTR
6h 59m1 stop
United Airlines Logo
2:00 pm - 10:45 pmBTR-STL
8h 45m2 stops
$284United Airlines
Find Deal
Tue, Dec 9 - Sat, Dec 13
United Airlines Logo
1:00 pm - 9:13 pmSTL-BTR
8h 13m2 stops
United Airlines Logo
2:00 pm - 10:45 pmBTR-STL
8h 45m2 stops
$289United Airlines
Find Deal
Sat, Jan 24 - Tue, Jan 27
American Airlines Logo
11:05 am - 8:59 pmSTL-BTR
9h 54m2 stops
American Airlines Logo
10:33 am - 4:14 pmBTR-STL
5h 41m1 stop
$324American Airlines
Find Deal
Sat, Jan 24 - Tue, Jan 27
American Airlines Logo
11:05 am - 8:59 pmSTL-BTR
9h 54m2 stops
American Airlines Logo
6:00 am - 2:50 pmBTR-STL
8h 50m2 stops
$329American Airlines
Find Deal
Wed, Dec 10 - Tue, Dec 16
United Airlines Logo
8:30 am - 7:28 pmSTL-BTR
10h 58m2 stops
United Airlines Logo
2:00 pm - 10:45 pmBTR-STL
8h 45m2 stops
$344United Airlines
Find Deal
Fri, Jan 16 - Mon, Jan 19
American Airlines Logo
3:37 pm - 10:56 pmSTL-BTR
7h 19m1 stop
American Airlines Logo
4:38 pm - 10:59 pmBTR-STL
6h 21m1 stop
$363American Airlines
Find Deal
Booking Insights

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

Get data-powered insights and trends into flights from St. Louis to Baton Rouge 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 St. Louis to Baton Rouge?

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

If you are looking for a flight deal from St. Louis to Baton Rouge, look for departures on Wednesdays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Baton Rouge, Tuesday is the cheapest day to fly and Sunday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Baton Rouge, 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 Baton Rouge is October, where tickets cost $248 (return) on average. On the other hand, the most expensive months are May and January, where the average cost of round-trip tickets is $390 and $388 respectively.

Good to know

Low seasonOctober
Cheapest flight$249
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly with an average 14% increase in price.
Flight from St. Louis to Baton Rouge

When to book flights from St. Louis to Baton Rouge

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

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

    In the last 3 days, the lowest price for a flight from St. Louis to Baton Rouge was $308 for a one-way ticket and $249 for a round-trip.

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

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

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

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Baton Rouge, also known as Baton Rouge Ryan.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from St. Louis to Baton Rouge are Delta and United Airlines. With an average price for the route of $323 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 $348 and an overall rating of 7.4.

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

    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 Baton Rouge.

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

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

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

    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 Baton Rouge 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 3 airlines serving from St. Louis to Baton Rouge

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Baton Rouge. 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 Baton Rouge? 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 7998 reviews
8.1Boarding
7.9Comfort
8.5Crew
7.9Entertainment
7.3Food
Airline reviews

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

2.0 MediocreAnonymous, Nov 2025ATL - TPA
Read more Delta reviews

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

This flight was straightforward and without difficulty. Service was OK, but I continue to be underwhelmed by level of attention given to Sky Priority passengers.

It would’ve been nice for all that money to have a more substantial snack for free. I remember once upon a time getting a very nice turkey sandwich with Swiss cheese on whole wheat bread for no charge along with a drink. I guess those days are gone. it’s a little insulting being given a cookie or a bag of baked chips Going forward I’ll just bring my own.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Service in business class was not impressive. I ordered coffee with dinner and then watched other people get 2 refills before I got my 1 cup of coffee, and only after I pressed the attendant button overhead. Furthermore, the seats in the forward cabin need maintenance on this 737-800: the upholstery is detaching from the seat frame, at least on the backs of seats 1C, 1D.

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

Even though we were delayed, we were able to make our connection

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

Older aircraft, no meal, only food was for purchase. Not impressed United.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Always wish for more healthy, gluten free options. We have to bring our own.

Having a long layover, I was very appreciative of the ability to stand by for an earlier flight. Other airlines like Delta have refused this to me in the past, just to be mean (because my ticket class wasn't high enough). United went out of their way to help me get to my destination early, which I really appreciated given that it was the third leg of a 24+ hour journey for me.

Other than a way way too cold cabinets for the entire flight, all was great

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

The flight was delayed multiple times, again no fault of American but again the extra cost, for everything makes it feel like a cheap airline! Especially when flights are outrageously expensive already

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

I had a positive experience on American. I'm blind and traveling with a guide dog and the flight attendants were so kind, friendly, and helpful towards us. They checked in on us during the flight and they made us feel comfortable and welcomed. There was an hour delay before depature, but overall the flight was a smooth ride. I appreciate that there were no issues on this long flight back home.

We were told the flight was delayed 5 times, then it was moved to the next day.

More choices on snacks. Built-in video screen to enjoy entertainment choices.

we landed at cmh ten minutes early but had to sit on tarmac for twenty minutes because a plane was at our gate despite the fact that 3 other gates were open.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

I have a gluten allergy so did have any food

I have a gluten allergy so didn't have any food

Loved the crew . Absolutely no complaints. Except for luggage lost

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

Information on your arrival and departure airports