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Baton Rouge

$159+ Cheap flights from St. Louis to Baton Rouge (STL - BTR)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BTR
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from St. Louis to Baton Rouge

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Baton Rouge (BTR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 17, 2025.

Round-trip from

$195
(American Airlines)

One-way from

$159
(Delta)

Popular in

November

Cheapest in

July

Average price

$315
From Lambert-St Louis to Baton Rouge Ryan
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One-way flight from Lambert-St Louis to Baton Rouge Ryan
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Highest demand for flights based on searches. 25% potential increase in price ($130 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from St. Louis to Baton Rouge

Cheapest flights from St. Louis to Baton Rouge
Explore the most affordable flight options available from St. Louis to Baton Rouge. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/175:17 amSTL - BTR
1 stop4h 36mAmerican Airlines
Tue 11/185:27 pmBTR - STL
1 stop5h 40mAmerican Airlines
Deal found 9/15$195
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/145:15 pmSTL - BTR
1 stop4h 32mDelta
Tue 10/216:15 amBTR - STL
1 stop6h 20mDelta
Deal found 9/15$249
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/16:15 amSTL - BTR
1 stop4h 59mUnited Airlines
Sun 10/55:00 amBTR - STL
1 stop4h 52mUnited Airlines
Deal found 9/16$259
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/56:00 amSTL - BTR
2 stops7h 50mAmerican Airlines
Sun 11/95:27 pmBTR - STL
1 stop6h 38mAmerican Airlines
Deal found 9/15$279
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/145:20 amSTL - BTR
1 stop5h 17mAmerican Airlines
Tue 10/214:28 pmBTR - STL
2 stops7h 26mAmerican Airlines
Deal found 9/15$284
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:15 amSTL - BTR
1 stop4h 56mUnited Airlines
Mon 9/223:52 pmBTR - STL
1 stop6h 16mUnited Airlines
Deal found 9/14$324
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/306:15 amSTL - BTR
1 stop6h 55mUnited Airlines
Sat 10/46:50 amBTR - STL
2 stops7h 37mUnited Airlines
Deal found 9/15$334

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from St. Louis to Baton Rouge that are best for you.

Fly from

St. Louis

Fly to

Baton Rouge

Route

Depart

Return

Price

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Mon 11/17

5:17 am-9:53 am

1 stop4h 36m

Baton Rouge Ryan

Tue 11/18

5:27 pm-11:07 pm

1 stop5h 40m

$195

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Tue 10/14

5:15 pm-9:47 pm

1 stop4h 32m

Baton Rouge Ryan

Tue 10/21

6:15 am-12:35 pm

1 stop6h 20m

$249

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Wed 11/5

1:30 pm-7:31 pm

1 stop6h 01m

Baton Rouge Ryan

Sun 11/9

6:50 pm-11:40 pm

1 stop4h 50m

$249

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Wed 10/1

11:10 am-9:05 pm

2 stops9h 55m

Baton Rouge Ryan

Sun 10/5

5:00 am-9:52 am

1 stop4h 52m

$264

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Wed 11/5

6:00 am-1:50 pm

2 stops7h 50m

Baton Rouge Ryan

Sun 11/9

5:27 pm-12:05 am

1 stop6h 38m

$279

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Tue 9/30

9:20 am-7:23 pm

2 stops10h 03m

Baton Rouge Ryan

Sat 10/4

12:10 pm-7:42 pm

2 stops7h 32m

$339

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Mon 10/6

5:11 am-10:37 am

1 stop5h 26m

Baton Rouge Ryan

Mon 10/13

6:21 pm-11:49 pm

1 stop5h 28m

$346

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Wed 11/12

1:55 pm-5:59 pm

1 stop4h 04m

$159

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Wed 11/12

6:00 am-3:55 pm

2 stops9h 55m

$218

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Fri 10/17

5:11 am-11:54 am

1 stop6h 43m

$238

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 15 results
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Best time to book a flight from St. Louis to Baton Rouge

Have a flexible travel schedule? Discover the best time to fly to Baton Rouge from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from St. Louis to Baton Rouge?

Currently, August is the cheapest month in which you can book a flight from St. Louis to Baton Rouge (average of $334). Flying from St. Louis to Baton Rouge in March is currently the most expensive (average of $455). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to BTR?

Find hourly flight availability from St. Louis to Baton Rouge. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 32% on flights from St. Louis to Baton Rouge by exploring options for tickets at noon.

Reviews of airlines servicing Baton Rouge

Get insights into the airlines that provide service to Baton Rouge. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Baton Rouge. Reviews last updated September 17, 2025.
Read through reviews of airlines operating flights from St. Louis to Baton Rouge, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,926 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Baton Rouge. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from St. Louis to Baton Rouge?

    Airlines like American Airlines and Delta fly from St. Louis to Baton Rouge in about 4h 32m. The time it takes to get you to your destination can typically vary by up to 04m. The distance from St. Louis to Baton Rouge is about 569 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from St. Louis to Baton Rouge round-trip?

    Cheapflights users have booked flights from St. Louis to Baton Rouge round-trip from $232. Other airlines that can offer you cheap pricing are American Airlines, from $248, and United Airlines, from $258. Delta is priced at 39% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from St. Louis to Baton Rouge that include hotel bookings?

    Yes. In addition to deals on St. Louis to Baton Rouge flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Baton Rouge?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Baton Rouge.

  • Can I find deals for business class flights from St. Louis to Baton Rouge?

    Yes. Cheapflights offers flight deals from St. Louis to Baton Rouge by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, August is the cheapest month in which you can book a flight from St. Louis to Baton Rouge (average of $334). Flying from St. Louis to Baton Rouge in March is currently the most expensive (average of $455). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Baton Rouge?

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

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from St. Louis to Baton Rouge

Discover the top 3 airlines that operate flights from St. Louis to Baton Rouge. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$232Average$318FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$248Average$366FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$258Average$434FlexibilityNo cancel feeOn-time69%

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