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Cheap flights from St. Louis to Baton Rouge from $235

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Baton Rouge departing on 10/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from St. Louis to Baton Rouge

Cheap round-trip flights

Delta Logo
10:00 am - 2:56 pmSTL-BTR
4h 56m1 stop
Delta Logo
1:40 pm - 8:39 pmBTR-STL
6h 59m1 stop
$269Delta
Find Deal
Wed, Feb 18 - Sat, Feb 21
American Airlines Logo
5:17 am - 9:52 amSTL-BTR
4h 35m1 stop
American Airlines Logo
6:13 pm - 10:34 pmBTR-STL
4h 21m1 stop
$294American Airlines
Find Deal
Fri, Nov 21 - Sun, Nov 23
United Airlines Logo
6:15 am - 11:01 amSTL-BTR
4h 46m1 stop
United Airlines Logo
5:20 am - 3:21 pmBTR-STL
10h 01m2 stops
$324United Airlines
Find Deal
Wed, Feb 18 - Sat, Feb 21
United Airlines Logo
6:15 am - 11:11 amSTL-BTR
4h 56m1 stop
United Airlines Logo
2:05 pm - 6:50 pmBTR-STL
4h 45m1 stop
$329United Airlines
Find Deal
Wed, Sep 17 - Sat, Sep 20
United Airlines Logo
6:15 am - 11:11 amSTL-BTR
4h 56m1 stop
United Airlines Logo
5:00 am - 2:19 pmBTR-STL
9h 19m2 stops
$334United Airlines
Find Deal
Wed, Sep 17 - Sat, Sep 20
American Airlines Logo
5:17 am - 9:52 amSTL-BTR
4h 35m1 stop
American Airlines Logo
7:00 am - 3:12 pmBTR-STL
8h 12m2 stops
$344American Airlines
Find Deal
Fri, Nov 21 - Sun, Nov 23
United Airlines Logo
8:25 am - 5:41 pmSTL-BTR
9h 16m2 stops
United Airlines Logo
5:20 am - 2:18 pmBTR-STL
8h 58m2 stops
$359United Airlines
Find Deal
Wed, Feb 18 - Sat, Feb 21
United Airlines Logo
11:30 am - 11:24 pmSTL-BTR
11h 54m2 stops
United Airlines Logo
5:00 am - 2:19 pmBTR-STL
9h 19m2 stops
$364United Airlines
Find Deal
Wed, Sep 17 - Sat, Sep 20
Delta Logo
5:15 pm - 9:47 pmSTL-BTR
4h 32m1 stop
Delta Logo
7:00 pm - 11:41 pmBTR-STL
4h 41m1 stop
$483Delta
Find Deal
Fri, Oct 24 - Mon, Oct 27
American Airlines Logo
5:11 am - 10:37 amSTL-BTR
5h 26m1 stop
American Airlines Logo
6:21 pm - 11:49 pmBTR-STL
5h 28m1 stop
$542American Airlines
Find Deal
Fri, Oct 10 - Mon, Oct 13

Delta flights from St. Louis to Baton Rouge

Our best Delta deals on St. Louis to Baton Rouge flight tickets
Delta
Feb 18
STL10:00 amLambert-St Louis
4h 56m
1 stop
BTR2:56 pmBaton Rouge Ryan
Feb 21
BTR1:40 pmBaton Rouge Ryan
6h 59m
1 stop
STL8:39 pmLambert-St Louis
$269
Find similar
Delta
Oct 24
STL5:15 pmLambert-St Louis
4h 32m
1 stop
BTR9:47 pmBaton Rouge Ryan
Oct 27
BTR7:00 pmBaton Rouge Ryan
4h 41m
1 stop
STL11:41 pmLambert-St Louis
$483
Find similar

American Airlines flights from St. Louis to Baton Rouge

Our best American Airlines deals on St. Louis to Baton Rouge flight tickets
American Airlines
Nov 21
STL5:17 amLambert-St Louis
4h 35m
1 stop
BTR9:52 amBaton Rouge Ryan
Nov 23
BTR6:13 pmBaton Rouge Ryan
4h 21m
1 stop
STL10:34 pmLambert-St Louis
$294
Find similar
American Airlines
Nov 21
STL5:17 amLambert-St Louis
4h 35m
1 stop
BTR9:52 amBaton Rouge Ryan
Nov 23
BTR7:00 amBaton Rouge Ryan
8h 12m
2 stops
STL3:12 pmLambert-St Louis
$344
Find similar
American Airlines
Oct 10
STL5:11 amLambert-St Louis
5h 26m
1 stop
BTR10:37 amBaton Rouge Ryan
Oct 13
BTR6:21 pmBaton Rouge Ryan
5h 28m
1 stop
STL11:49 pmLambert-St Louis
$542
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Baton Rouge that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 1, 2025.
Use the filters below to find and compare flights from St. Louis to Baton Rouge that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Wed 2/18

10:00 am-2:56 pm

1 stop4h 56m

Baton Rouge Ryan

Sat 2/21

1:40 pm-8:39 pm

1 stop6h 59m

$269

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Fri 11/21

5:17 am-9:52 am

1 stop4h 35m

Baton Rouge Ryan

Sun 11/23

6:13 pm-10:34 pm

1 stop4h 21m

$294

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Wed 2/18

6:15 am-11:01 am

1 stop4h 46m

Baton Rouge Ryan

Sat 2/21

5:20 am-3:21 pm

2 stops10h 01m

$324

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Wed 9/17

6:15 am-11:11 am

1 stop4h 56m

Baton Rouge Ryan

Sat 9/20

2:05 pm-6:50 pm

1 stop4h 45m

$329

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Wed 9/17

6:15 am-11:11 am

1 stop4h 56m

Baton Rouge Ryan

Sat 9/20

5:00 am-2:19 pm

2 stops9h 19m

$334

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Fri 11/21

5:17 am-9:52 am

1 stop4h 35m

Baton Rouge Ryan

Sun 11/23

7:00 am-3:12 pm

2 stops8h 12m

$344

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Wed 2/18

8:25 am-5:41 pm

2 stops9h 16m

Baton Rouge Ryan

Sat 2/21

5:20 am-2:18 pm

2 stops8h 58m

$359

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Wed 9/17

11:30 am-11:24 pm

2 stops11h 54m

Baton Rouge Ryan

Sat 9/20

5:00 am-2:19 pm

2 stops9h 19m

$364

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Fri 10/24

5:15 pm-9:47 pm

1 stop4h 32m

Baton Rouge Ryan

Mon 10/27

7:00 pm-11:41 pm

1 stop4h 41m

$483

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Fri 10/10

5:11 am-10:37 am

1 stop5h 26m

Baton Rouge Ryan

Mon 10/13

6:21 pm-11:49 pm

1 stop5h 28m

$542

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Baton Rouge from

How to get the cheapest flight ticket from St. Louis to Baton Rouge

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between St. Louis and Baton Rouge?

What is the cheapest month to fly to Baton Rouge?

In general, July is the cheapest month to fly from St. Louis to Baton Rouge. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $257. If you’re not able to fly to Baton Rouge in July, then April is your next best option. Flight prices from St. Louis to Baton Rouge during April average around $287.

What is the cheapest day to depart on your flight to Baton Rouge?

The cheapest day to depart from St. Louis to Baton Rouge is on a Wednesday. Travelers who choose to depart for Baton Rouge on a Wednesday will often find tickets for as low as $271. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $420. These prices are subject to change though, so be sure to set up a Price Alert for flights to Baton Rouge.

What is the cheapest time of day to depart on your flight to Baton Rouge?

Our most recent data shows that the best time of day to fly to Baton Rouge is at noon. Flights from St. Louis to Baton Rouge during this time can be as low as $318. In contrast, the most expensive time of day to depart to Baton Rouge is in the afternoon when prices are around $464.

When to book flights from St. Louis to Baton Rouge

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Baton Rouge according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Baton Rouge (STL to BTR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Baton Rouge

Direct flights

None
There are no direct flights from St. Louis to Baton Rouge. There are no popular flight routes from St. Louis to Baton Rouge.
Search flight deals

  • How far is Lambert-St Louis to Baton Rouge Ryan by plane?

    The distance between Lambert-St Louis and Baton Rouge Ryan is about 567.0 mi. Flights usually cover this in 4h 32m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Baton Rouge Ryan Airport?

    Prices for flights from Lambert-St Louis Airport to Baton Rouge Ryan Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Baton Rouge Ryan Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Baton Rouge Ryan Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Baton Rouge Ryan Airport.

  • What documentation or ID do you need to fly to Baton Rouge Ryan Airport?

    The travel and health documents required for your trip to Baton Rouge Ryan Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Baton Rouge Ryan Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from St. Louis to Baton Rouge?

Best airlines flying from St. Louis to Baton Rouge

Compare and see reviews for airlines that fly from St. Louis to Baton Rouge with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $232Free CancellationRating
7.9
7,974 reviews
Search Delta flights
American AirlinesPriceFrom $248Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $258Free CancellationRating
7.4
8,936 reviews
Search United Airlines flights

Traveling to a place near Baton Rouge?

Book flights to Baton Rouge if you plan to visit one of these locations
Denham Springs
McComb
Port Allen
Saint Francisville

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Baton Rouge?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Baton Rouge from St. Louis.

Can I find flights from St. Louis to Baton Rouge with flexible booking policies on momondo?

All flight searches from St. Louis to Baton Rouge on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from St. Louis to Baton Rouge?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Baton Rouge.

I’m not ready to book a flight from St. Louis to Baton Rouge right now. Can momondo alert me if prices change?

Yes. momondo can track prices for St. Louis to Baton Rouge flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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