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Cheap flights from St. Louis to Baton Rouge from $200

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 5/18. 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

Enter your travel dates to find the best prices.
Delta Logo
5:15 pm - 10:03 pm
STL
-
BTR
4h 48m
1 stop
Delta Logo
4:00 pm - 9:29 pm
BTR
-
STL
5h 29m
1 stop
$305Delta
Sat, May 16 - Sat, May 23
Delta Logo
7:15 am - 12:49 pm
STL
-
BTR
5h 34m
1 stop
Delta Logo
10:27 am - 4:10 pm
BTR
-
STL
5h 43m
1 stop
$311Delta
Wed, May 20 - Mon, Jun 1
American Airlines Logo
5:25 am - 10:52 am
STL
-
BTR
5h 27m
1 stop
American Airlines Logo
6:47 pm - 11:59 pm
BTR
-
STL
5h 12m
1 stop
$315American Airlines
Sat, May 30 - Sat, Jun 20
United Airlines Logo
6:00 am - 1:25 pm
STL
-
BTR
7h 25m
1 stop
United Airlines Logo
6:15 pm - 10:30 pm
BTR
-
STL
4h 15m
1 stop
$321United Airlines
Mon, Apr 27 - Mon, May 4
Delta Logo
11:42 am - 6:27 pm
STL
-
BTR
6h 45m
1 stop
Delta Logo
7:08 pm - 11:36 pm
BTR
-
STL
4h 28m
1 stop
$325Delta
Wed, Apr 15 - Sun, Apr 19
American Airlines Logo
12:27 pm - 9:25 pm
STL
-
BTR
8h 58m
2 stops
American Airlines Logo
6:32 pm - 10:59 pm
BTR
-
STL
4h 27m
1 stop
$330American Airlines
Fri, Apr 17 - Tue, Apr 21
American Airlines Logo
12:27 pm - 9:25 pm
STL
-
BTR
8h 58m
2 stops
American Airlines Logo
7:06 am - 4:00 pm
BTR
-
STL
8h 54m
2 stops
$335American Airlines
Fri, Apr 17 - Tue, Apr 21
Delta Logo
6:00 am - 12:50 pm
STL
-
BTR
6h 50m
1 stop
Delta Logo
6:03 am - 12:20 pm
BTR
-
STL
6h 17m
1 stop
$358Delta
Fri, May 1 - Fri, May 8
Delta Logo
4:41 pm - 9:56 pm
STL
-
BTR
5h 15m
1 stop
Delta Logo
6:00 am - 10:34 am
BTR
-
STL
4h 34m
1 stop
$361Delta
Wed, Apr 22 - Sun, Apr 26
American Airlines Logo
8:55 am - 6:02 pm
STL
-
BTR
9h 07m
2 stops
American Airlines Logo
7:36 pm - 11:58 pm
BTR
-
STL
4h 22m
1 stop
$378American Airlines
Wed, May 20 - Mon, Jun 1

Delta flights from St. Louis to Baton Rouge

Our best Delta deals on St. Louis to Baton Rouge flight tickets
Delta
May 16
STL5:15 pmLambert-St Louis
4h 48m
1 stop
BTR10:03 pmBaton Rouge Ryan
May 23
BTR4:00 pmBaton Rouge Ryan
5h 29m
1 stop
STL9:29 pmLambert-St Louis
$305
Delta
May 20
STL7:15 amLambert-St Louis
5h 34m
1 stop
BTR12:49 pmBaton Rouge Ryan
Jun 1
BTR10:27 amBaton Rouge Ryan
5h 43m
1 stop
STL4:10 pmLambert-St Louis
$311
Delta
Apr 15
STL11:42 amLambert-St Louis
6h 45m
1 stop
BTR6:27 pmBaton Rouge Ryan
Apr 19
BTR7:08 pmBaton Rouge Ryan
4h 28m
1 stop
STL11:36 pmLambert-St Louis
$325

United Airlines flights from St. Louis to Baton Rouge

Our best United Airlines deals on St. Louis to Baton Rouge flight tickets
United Airlines
Apr 27
STL6:00 amLambert-St Louis
7h 25m
1 stop
BTR1:25 pmBaton Rouge Ryan
May 4
BTR6:15 pmBaton Rouge Ryan
4h 15m
1 stop
STL10:30 pmLambert-St Louis
$321
United Airlines
May 2
STL7:45 amLambert-St Louis
7h 46m
2 stops
BTR3:31 pmBaton Rouge Ryan
May 3
BTR5:00 amBaton Rouge Ryan
4h 30m
1 stop
STL9:30 amLambert-St Louis
$397
United Airlines
Apr 22
STL6:00 amLambert-St Louis
7h 25m
1 stop
BTR1:25 pmBaton Rouge Ryan
Apr 25
BTR2:00 pmBaton Rouge Ryan
9h 57m
2 stops
STL11:57 pmLambert-St Louis
$410

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 April 2, 2026.
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

Cheapest round-trip

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Sat 5/16

5:15 pm-10:03 pm

1 stop4h 48m

Baton Rouge Ryan

Sat 5/23

4:00 pm-9:29 pm

1 stop5h 29m

$305

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Wed 5/20

7:15 am-12:49 pm

1 stop5h 34m

Baton Rouge Ryan

Mon 6/1

10:27 am-4:10 pm

1 stop5h 43m

$311

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Sat 5/30

5:25 am-10:52 am

1 stop5h 27m

Baton Rouge Ryan

Sat 6/20

6:47 pm-11:59 pm

1 stop5h 12m

$315

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Mon 4/27

6:00 am-1:25 pm

1 stop7h 25m

Baton Rouge Ryan

Mon 5/4

6:15 pm-10:30 pm

1 stop4h 15m

$321

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Wed 4/15

11:42 am-6:27 pm

1 stop6h 45m

Baton Rouge Ryan

Sun 4/19

7:08 pm-11:36 pm

1 stop4h 28m

$325

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Fri 4/17

12:27 pm-9:25 pm

2 stops8h 58m

Baton Rouge Ryan

Tue 4/21

6:32 pm-10:59 pm

1 stop4h 27m

$330

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Fri 4/17

12:27 pm-9:25 pm

2 stops8h 58m

Baton Rouge Ryan

Tue 4/21

7:06 am-4:00 pm

2 stops8h 54m

$335

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Fri 5/1

6:00 am-12:50 pm

1 stop6h 50m

Baton Rouge Ryan

Fri 5/8

6:03 am-12:20 pm

1 stop6h 17m

$358
Quickest round-trip

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Wed 4/22

4:41 pm-9:56 pm

1 stop5h 15m

Baton Rouge Ryan

Sun 4/26

6:00 am-10:34 am

1 stop4h 34m

$361

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Wed 5/20

8:55 am-6:02 pm

2 stops9h 07m

Baton Rouge Ryan

Mon 6/1

7:36 pm-11:58 pm

1 stop4h 22m

$378

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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, October 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 $248. If you’re not able to fly to Baton Rouge in October, then July is your next best option. Flight prices from St. Louis to Baton Rouge during July average around $257.

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

Fastest flight time

4h 48m

Direct flights

None
The fastest flight from St. Louis to Baton Rouge takes 4h 48m
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

Frequently asked questions about flying from St. Louis to Baton Rouge

  • 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 48m, 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 $162Free CancellationRating
7.9
8,369 reviews
Search Delta flights
American AirlinesPriceFrom $189Free CancellationRating
7.1
11,549 reviews
Search American Airlines flights
United AirlinesPriceFrom $248Free CancellationRating
7.4
9,533 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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