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$205+ Cheap flights from Baton Rouge to St. Louis (BTR - STL)

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 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
BTR — STL
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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Cheap flight deals from Baton Rouge to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Baton Rouge (BTR) to St. Louis (STL). 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 October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$249
(Delta)

One-way from

$205
(United Airlines)

Popular in

March

Cheapest in

April

Average price

$366
Provider with most accurate pricing for Baton Rouge Ryan-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Baton Rouge Ryan-Lambert-St Louis flights.
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From Baton Rouge Ryan to Lambert-St Louis
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One-way flight from Baton Rouge Ryan to Lambert-St Louis
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Highest demand for flights based on searches. 3% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Baton Rouge to St. Louis

Cheapest flights from Baton Rouge to St. Louis
Explore the most affordable flight options available from Baton Rouge to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 2025.

This Delta deal was found by Cheapflights users on 10/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:00 amBTR - STL
1 stop7h 00mDelta
Sat 11/156:00 amSTL - BTR
1 stop6h 29mDelta
Deal found 10/14$249
This Delta deal was found by Cheapflights users on 10/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/313:40 pmBTR - STL
1 stop6h 14mDelta
Tue 11/46:00 amSTL - BTR
1 stop6h 26mDelta
Deal found 10/16$254
This United Airlines deal was found by Cheapflights users on 10/14. 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.
Sat 11/112:10 pmBTR - STL
2 stops7h 29mUnited Airlines
Wed 11/58:20 amSTL - BTR
1 stop7h 01mUnited Airlines
Deal found 10/14$259
This Delta deal was found by Cheapflights users on 10/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/206:59 pmBTR - STL
1 stop4h 43mDelta
Tue 12/305:13 pmSTL - BTR
1 stop4h 40mDelta
Deal found 10/14$274
This American Airlines deal was found by Cheapflights users on 10/14. 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.
Fri 11/73:08 pmBTR - STL
1 stop7h 59mAmerican Airlines
Sun 11/95:17 amSTL - BTR
1 stop4h 33mAmerican Airlines
Deal found 10/14$279
This American Airlines deal was found by Cheapflights users on 10/14. 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.
Sat 11/17:10 amBTR - STL
2 stops8h 54mAmerican Airlines
Wed 11/56:00 amSTL - BTR
2 stops7h 50mAmerican Airlines
Deal found 10/14$294
This United Airlines deal was found by Cheapflights users on 10/15. 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.
Fri 11/145:07 amBTR - STL
2 stops7h 21mUnited Airlines
Sat 11/158:00 amSTL - BTR
2 stops7h 21mUnited Airlines
Deal found 10/15$306
This American Airlines deal was found by Cheapflights users on 10/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1712:24 pmBTR - STL
1 stop5h 58mAmerican Airlines
Mon 10/208:49 amSTL - BTR
1 stop7h 09mAmerican Airlines
Deal found 10/13$324
This Delta deal was found by Cheapflights users on 10/15. 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.
Fri 10/177:00 pmBTR - STL
1 stop4h 41mDelta
Sat 10/186:00 amSTL - BTR
1 stop6h 26mDelta
Deal found 10/15$339
This United Airlines deal was found by Cheapflights users on 10/15. 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.
Fri 10/175:00 amBTR - STL
1 stop4h 52mUnited Airlines
Sat 10/186:30 amSTL - BTR
2 stops8h 54mUnited Airlines
Deal found 10/15$344

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baton Rouge to St. Louis 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 October 16, 2025.
Use the filters below to find and compare flights from Baton Rouge to St. Louis that are best for you.

Fly from

Baton Rouge

Fly to

St. Louis

Route

Depart

Return

Price

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Fri 10/31

5:07 am-10:39 am

1 stop5h 32m

Lambert-St Louis

Mon 11/17

6:15 am-1:22 pm

1 stop7h 07m

$249

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Fri 11/14

6:00 am-10:43 am

1 stop4h 43m

Lambert-St Louis

Sat 11/15

7:05 am-12:29 pm

1 stop5h 24m

$249

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Thu 11/13

6:00 am-1:00 pm

1 stop7h 00m

Lambert-St Louis

Sat 11/15

6:00 am-12:29 pm

1 stop6h 29m

$249

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Thu 11/13

1:00 pm-5:54 pm

1 stop4h 54m

Lambert-St Louis

Sat 11/15

6:00 am-1:45 pm

2 stops7h 45m

$254

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Thu 11/13

5:07 am-10:39 am

1 stop5h 32m

Lambert-St Louis

Sat 11/15

10:00 am-7:27 pm

2 stops9h 27m

$254

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Sat 11/1

9:30 am-4:07 pm

1 stop6h 37m

Lambert-St Louis

Wed 11/5

8:20 am-1:22 pm

1 stop5h 02m

$254

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Fri 11/14

2:05 pm-6:47 pm

1 stop4h 42m

Lambert-St Louis

Sat 11/15

10:00 am-7:27 pm

2 stops9h 27m

$254

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Mon 12/15

3:57 pm-9:58 pm

1 stop6h 01m

$205

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/16

Compare providers for flights from Baton Rouge to St. Louis

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 Baton Rouge to St. Louis in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice 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 Baton Rouge-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baton Rouge-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baton Rouge-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baton Rouge-St. Louis 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 Baton Rouge-St. Louis 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 Baton Rouge to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Baton Rouge 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 Baton Rouge to St. Louis

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

Currently, January is the cheapest month in which you can book a flight from Baton Rouge to St. Louis (average of $106). Flying from Baton Rouge to St. Louis in March is currently the most expensive (average of $284). 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 BTR to STL?

Find hourly flight availability from Baton Rouge to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 16, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 14% on flights from Baton Rouge to St. Louis by exploring options for tickets in the evening.

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

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated October 16, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Baton Rouge to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,984 reviews

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
8.0
Very good
7,984 reviews
Delta
8.0
Very good
7,984 reviews

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,982 reviews
Delta
8.0
Very good
7,984 reviews

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,043 reviews
Delta
8.0
Very good
7,984 reviews

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from Baton Rouge to St. Louis. 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 Baton Rouge to St. Louis?

    There are many flights that can get you from Baton Rouge to St. Louis in 4h 43m. Fly via United Airlines, Delta, or American Airlines to get the fastest option. There are 569 mi between Baton Rouge and St. Louis. This flight may include one or multiple stops.

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

    Flying on Delta is currently your cheapest option to St. Louis, with prices starting at $248. Additional round-trip tickets that might be worth considering are offered by United Airlines and American Airlines, with the lowest prices starting at $248 and $253, respectively. You may be able to fly from Baton Rouge to St. Louis for 29% less than the average price by searching for these airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Baton Rouge to St. Louis 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 Baton Rouge to St. Louis?

    Currently, January is the cheapest month in which you can book a flight from Baton Rouge to St. Louis (average of $106). Flying from Baton Rouge to St. Louis in March is currently the most expensive (average of $284). 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Baton Rouge to St. Louis

Discover the top 3 airlines that operate flights from Baton Rouge to St. Louis. 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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$248Average$283FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$407FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$253Average$328FlexibilityNo cancel feeOn-time71%

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