Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Baton Rouge from $163

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 5/29. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
4:00 pm - 8:50 pm
STL
-
BTR
4h 50m
1 stop
Delta Logo
7:08 pm - 11:56 pm
BTR
-
STL
4h 48m
1 stop
$307Delta
Sat, Jun 20 - Sun, Jun 21
American Airlines Logo
5:29 am - 11:00 am
STL
-
BTR
5h 31m
1 stop
American Airlines Logo
6:47 pm - 11:59 pm
BTR
-
STL
5h 12m
1 stop
$312American Airlines
Sun, Jun 7 - Sat, Jun 13
American Airlines Logo
7:03 am - 1:48 pm
STL
-
BTR
6h 45m
1 stop
American Airlines Logo
7:36 pm - 11:58 pm
BTR
-
STL
4h 22m
1 stop
$313American Airlines
Thu, May 28 - Sun, May 31
American Airlines Logo
5:18 pm - 10:59 pm
STL
-
BTR
5h 41m
1 stop
American Airlines Logo
7:36 pm - 11:58 pm
BTR
-
STL
4h 22m
1 stop
$322American Airlines
Fri, May 29 - Sun, May 31
American Airlines Logo
5:25 am - 11:00 am
STL
-
BTR
5h 35m
1 stop
American Airlines Logo
6:28 pm - 11:44 pm
BTR
-
STL
5h 16m
1 stop
$325American Airlines
Mon, May 25 - Thu, May 28
American Airlines Logo
2:36 pm - 10:09 pm
STL
-
BTR
7h 33m
2 stops
American Airlines Logo
7:36 pm - 11:58 pm
BTR
-
STL
4h 22m
1 stop
$330American Airlines
Tue, May 26 - Sat, May 30
American Airlines Logo
2:36 pm - 10:09 pm
STL
-
BTR
7h 33m
2 stops
American Airlines Logo
6:00 am - 1:15 pm
BTR
-
STL
7h 15m
2 stops
$335American Airlines
Tue, May 26 - Sat, May 30
Delta Logo
6:00 am - 12:47 pm
STL
-
BTR
6h 47m
1 stop
Delta Logo
7:08 pm - 11:56 pm
BTR
-
STL
4h 48m
1 stop
$349Delta
Wed, Jul 1 - Mon, Jul 6
Delta Logo
6:00 am - 12:47 pm
STL
-
BTR
6h 47m
1 stop
Delta Logo
4:16 pm - 10:18 pm
BTR
-
STL
6h 02m
1 stop
$357Delta
Wed, Jul 1 - Mon, Jul 6
American Airlines Logo
5:30 am - 11:00 am
STL
-
BTR
5h 30m
1 stop
American Airlines Logo
6:47 pm - 11:59 pm
BTR
-
STL
5h 12m
1 stop
$366American Airlines
Fri, Jun 12 - Sat, Jun 13

American Airlines flights from St. Louis to Baton Rouge

Our best American Airlines deals on St. Louis to Baton Rouge flight tickets
American Airlines
Jun 7
STL5:29 amLambert-St Louis
5h 31m
1 stop
BTR11:00 amBaton Rouge Ryan
Jun 13
BTR6:47 pmBaton Rouge Ryan
5h 12m
1 stop
STL11:59 pmLambert-St Louis
$312
American Airlines
May 28
STL7:03 amLambert-St Louis
6h 45m
1 stop
BTR1:48 pmBaton Rouge Ryan
May 31
BTR7:36 pmBaton Rouge Ryan
4h 22m
1 stop
STL11:58 pmLambert-St Louis
$313
American Airlines
May 29
STL5:18 pmLambert-St Louis
5h 41m
1 stop
BTR10:59 pmBaton Rouge Ryan
May 31
BTR7:36 pmBaton Rouge Ryan
4h 22m
1 stop
STL11:58 pmLambert-St Louis
$322

United Airlines flights from St. Louis to Baton Rouge

Our best United Airlines deals on St. Louis to Baton Rouge flight tickets
United Airlines
May 30
STL6:00 amLambert-St Louis
9h 34m
2 stops
BTR3:34 pmBaton Rouge Ryan
Jun 3
BTR5:00 amBaton Rouge Ryan
10h 46m
2 stops
STL3:46 pmLambert-St Louis
$407
United Airlines
May 30
STL6:00 amLambert-St Louis
9h 34m
2 stops
BTR3:34 pmBaton Rouge Ryan
Jun 3
BTR5:00 amBaton Rouge Ryan
10h 46m
2 stops
STL3:46 pmLambert-St Louis
$412
United Airlines
May 30
STL6:00 amLambert-St Louis
9h 34m
2 stops
BTR3:34 pmBaton Rouge Ryan
Jun 3
BTR5:00 amBaton Rouge Ryan
10h 46m
2 stops
STL3:46 pmLambert-St Louis
$415

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 May 15, 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
Quickest round-trip

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Sat 6/20

4:00 pm-8:50 pm

1 stop4h 50m

Baton Rouge Ryan

Sun 6/21

7:08 pm-11:56 pm

1 stop4h 48m

$307

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Sun 6/7

5:29 am-11:00 am

1 stop5h 31m

Baton Rouge Ryan

Sat 6/13

6:47 pm-11:59 pm

1 stop5h 12m

$312

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Thu 5/28

7:03 am-1:48 pm

1 stop6h 45m

Baton Rouge Ryan

Sun 5/31

7:36 pm-11:58 pm

1 stop4h 22m

$313

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Fri 5/29

5:18 pm-10:59 pm

1 stop5h 41m

Baton Rouge Ryan

Sun 5/31

7:36 pm-11:58 pm

1 stop4h 22m

$322

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Mon 5/25

5:25 am-11:00 am

1 stop5h 35m

Baton Rouge Ryan

Thu 5/28

6:28 pm-11:44 pm

1 stop5h 16m

$325

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Tue 5/26

2:36 pm-10:09 pm

2 stops7h 33m

Baton Rouge Ryan

Sat 5/30

7:36 pm-11:58 pm

1 stop4h 22m

$330

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Tue 5/26

2:36 pm-10:09 pm

2 stops7h 33m

Baton Rouge Ryan

Sat 5/30

6:00 am-1:15 pm

2 stops7h 15m

$335

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Wed 7/1

6:00 am-12:47 pm

1 stop6h 47m

Baton Rouge Ryan

Mon 7/6

7:08 pm-11:56 pm

1 stop4h 48m

$349

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Wed 7/1

6:00 am-12:47 pm

1 stop6h 47m

Baton Rouge Ryan

Mon 7/6

4:16 pm-10:18 pm

1 stop6h 02m

$357

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Fri 6/12

5:30 am-11:00 am

1 stop5h 30m

Baton Rouge Ryan

Sat 6/13

6:47 pm-11:59 pm

1 stop5h 12m

$366

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 24m

Direct flights

None
The fastest flight from St. Louis to Baton Rouge takes 4h 24m
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 24m, 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
8,453 reviews
Search Delta flights
American AirlinesPriceFrom $189Free CancellationRating
7.1
11,662 reviews
Search American 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.

An easier way to manage your Baton Rouge trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 6/14
Sun 6/21
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States