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Baton Rouge

$307+ Cheap flights from St. Louis to Baton Rouge (STL - BTR)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BTR
Aug 13 — Aug 201
Thu 8/13
Thu 8/20
1 adult, Economy
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Cheap 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 July 14, 2026.

This American Airlines deal was found by Cheapflights users on 7/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:36 am
STL
-
BTR
1 stop7h 21m
American Airlines
Tue 8/182:27 pm
BTR
-
STL
1 stop5h 59m
American Airlines
Deal found 7/14$307
This American Airlines deal was found by Cheapflights users on 7/11. 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.
Sat 8/88:36 am
STL
-
BTR
1 stop5h 21m
American Airlines
Fri 8/146:14 pm
BTR
-
STL
1 stop5h 28m
American Airlines
Deal found 7/11$309
This United Airlines deal was found by Cheapflights users on 7/14. 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.
Tue 8/118:35 am
STL
-
BTR
1 stop4h 41m
United Airlines
Tue 8/1812:00 pm
BTR
-
STL
2 stops10h 00m
United Airlines
Deal found 7/14$312
This Delta deal was found by Cheapflights users on 7/9. 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 7/287:08 am
STL
-
BTR
1 stop5h 39m
Delta
Sun 8/27:04 pm
BTR
-
STL
1 stop4h 49m
Delta
Deal found 7/9$324
This United Airlines deal was found by Cheapflights users on 7/13. 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.
Sat 8/296:00 am
STL
-
BTR
2 stops9h 30m
United Airlines
Tue 9/112:00 pm
BTR
-
STL
1 stop6h 04m
United Airlines
Deal found 7/13$390
This United Airlines deal was found by Cheapflights users on 7/13. 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.
Sun 8/96:14 am
STL
-
BTR
1 stop7h 15m
United Airlines
Sat 8/1512:00 pm
BTR
-
STL
2 stops11h 38m
United Airlines
Deal found 7/13$392
This United Airlines deal was found by Cheapflights users on 7/10. 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.
Thu 7/306:14 am
STL
-
BTR
1 stop5h 06m
United Airlines
Sat 8/12:05 pm
BTR
-
STL
2 stops9h 24m
United Airlines
Deal found 7/10$409
This United Airlines deal was found by Cheapflights users on 7/13. 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.
Sat 8/811:10 am
STL
-
BTR
1 stop6h 24m
United Airlines
Fri 8/147:15 am
BTR
-
STL
2 stops8h 23m
United Airlines
Deal found 7/13$418
This United Airlines deal was found by Cheapflights users on 7/11. 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 7/178:35 am
STL
-
BTR
1 stop6h 59m
United Airlines
Sun 7/1912:10 pm
BTR
-
STL
1 stop5h 32m
United Airlines
Deal found 7/11$419
This United Airlines deal was found by Cheapflights users on 7/9. 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 11/112:56 pm
STL
-
BTR
1 stop4h 34m
United Airlines
Sun 11/155:00 am
BTR
-
STL
1 stop5h 05m
United Airlines
Deal found 7/9$432

Find 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 July 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$309
(American Airlines)

Popular in

December

Cheapest in

October

Average price

$371
Provider with most accurate pricing for Lambert-St Louis-Baton Rouge Ryan flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Baton Rouge Ryan flights.
Search Deals
From Lambert-St Louis to Baton Rouge Ryan
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($89 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 July 14, 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

Tue 8/11

6:36 am-1:57 pm

1 stop7h 21m

Baton Rouge Ryan

Tue 8/18

2:27 pm-8:26 pm

1 stop5h 59m

$307
Quickest round-trip

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Fri 9/18

4:59 pm-9:53 pm

1 stop4h 54m

Baton Rouge Ryan

Thu 9/24

1:32 pm-5:45 pm

1 stop4h 13m

$309

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Sat 8/8

8:36 am-1:57 pm

1 stop5h 21m

Baton Rouge Ryan

Fri 8/14

6:14 pm-11:42 pm

1 stop5h 28m

$309

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Tue 8/11

8:35 am-1:16 pm

1 stop4h 41m

Baton Rouge Ryan

Tue 8/18

12:00 pm-10:00 pm

2 stops10h 00m

$312

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Tue 7/28

7:08 am-12:47 pm

1 stop5h 39m

Baton Rouge Ryan

Sun 8/2

7:04 pm-11:53 pm

1 stop4h 49m

$324

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Sat 8/29

6:00 am-3:30 pm

2 stops9h 30m

Baton Rouge Ryan

Tue 9/1

12:00 pm-6:04 pm

1 stop6h 04m

$390

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Sun 8/9

6:14 am-1:29 pm

1 stop7h 15m

Baton Rouge Ryan

Sat 8/15

12:00 pm-11:38 pm

2 stops11h 38m

$392
Cheapest one-way
Quickest one-way

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Thu 7/30

6:00 am-3:34 pm

2 stops9h 34m

$396

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Thu 7/30

6:02 am-9:39 am

3 stops27h 37m

$1,058

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/11

Sorted by cheapest first

Compare providers for flights from St. Louis to Baton Rouge

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Baton Rouge in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Baton Rouge flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Baton Rouge flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Baton Rouge flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Baton Rouge flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Baton Rouge flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, October is the cheapest month in which you can book a flight from St. Louis to Baton Rouge (average of $248). Flying from St. Louis to Baton Rouge in December is currently the most expensive (average of $817). 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.

How much does it cost to fly round-trip from St. Louis to Baton Rouge?

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 July 14, 2026.
Read through reviews of airlines operating flights from St. Louis to Baton Rouge, such as Delta and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,465 reviews

Overall

7.8

Entertainment

7.8

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,465 reviews
Delta
7.8
Good
8,465 reviews

Overall

7.8

Entertainment

7.8

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,808 reviews
Delta
7.8
Good
8,465 reviews

Overall

7.8

Entertainment

7.8

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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, Delta, and United Airlines fly from St. Louis to Baton Rouge in about 5h 21m. The time it takes to get you to your destination can typically vary by up to 4h 09m. 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 $248. Another airline that can offer you cheap pricing is Delta. American Airlines 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, October is the cheapest month in which you can book a flight from St. Louis to Baton Rouge (average of $248). Flying from St. Louis to Baton Rouge in December is currently the most expensive (average of $817). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from St. Louis to Baton Rouge

Discover the top 2 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 July 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$248Average$373FlexibilityNo cancel feeOn-time71%
DeltaCheapest$273Average$462FlexibilityNo cancel feeOn-timeN/A

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