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$249+ Cheap flights from Baton Rouge to St. Louis (BTR - STL)

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 12/18. Fares are subject to change and may not be available on all flights or dates of travel.
BTR — STL
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
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 November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$249
(Delta)

Popular in

March

Cheapest in

April

Average price

$403
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
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 6, 2025.

This Delta deal was found by Cheapflights users on 11/5. 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 12/1810:32 amBTR - STL
1 stop5h 34mDelta
Tue 1/67:10 amSTL - BTR
1 stop6h 22mDelta
Deal found 11/5$249
This Delta deal was found by Cheapflights users on 11/5. 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 12/1810:32 amBTR - STL
1 stop5h 34mDelta
Mon 1/57:10 amSTL - BTR
1 stop6h 22mDelta
Deal found 11/5$264
This United Airlines deal was found by Cheapflights users on 11/5. 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 11/226:09 pmBTR - STL
1 stop4h 13mUnited Airlines
Tue 11/258:20 amSTL - BTR
1 stop5h 02mUnited Airlines
Deal found 11/5$279
This United Airlines deal was found by Cheapflights users on 11/4. 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 11/205:07 amBTR - STL
2 stops9h 17mUnited Airlines
Mon 11/244:35 pmSTL - BTR
1 stop6h 09mUnited Airlines
Deal found 11/4$284
This Delta deal was found by Cheapflights users on 11/6. 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 stop4h 43mDelta
Sun 11/169:33 amSTL - BTR
1 stop4h 02mDelta
Deal found 11/6$289
This Delta deal was found by Cheapflights users on 11/5. 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 12/1910:32 amBTR - STL
1 stop5h 34mDelta
Wed 1/77:10 amSTL - BTR
1 stop6h 22mDelta
Deal found 11/5$304
This American Airlines deal was found by Cheapflights users on 11/5. 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 12/275:53 pmBTR - STL
1 stop5h 03mAmerican Airlines
Tue 12/305:16 amSTL - BTR
1 stop4h 23mAmerican Airlines
Deal found 11/5$309
This American Airlines deal was found by Cheapflights users on 11/5. 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.
Sun 12/2110:09 amBTR - STL
1 stop7h 01mAmerican Airlines
Mon 1/59:08 amSTL - BTR
2 stops8h 15mAmerican Airlines
Deal found 11/5$314
This United Airlines deal was found by Cheapflights users on 11/5. 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 12/2412:11 pmBTR - STL
1 stop4h 35mUnited Airlines
Sun 1/46:00 amSTL - BTR
1 stop5h 25mUnited Airlines
Deal found 11/5$319
This United Airlines deal was found by Cheapflights users on 11/5. 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 12/2412:11 pmBTR - STL
1 stop4h 35mUnited Airlines
Mon 1/58:15 amSTL - BTR
2 stops11h 08mUnited Airlines
Deal found 11/5$324
This United Airlines deal was found by Cheapflights users on 11/5. 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 12/245:10 amBTR - STL
2 stops9h 16mUnited Airlines
Thu 1/89:57 amSTL - BTR
2 stops7h 56mUnited Airlines
Deal found 11/5$329

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 November 6, 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

Thu 12/18

10:32 am-4:06 pm

1 stop5h 34m

Lambert-St Louis

Wed 1/7

9:59 am-5:10 pm

1 stop7h 11m

$249

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Sat 12/20

6:59 pm-11:42 pm

1 stop4h 43m

Lambert-St Louis

Fri 1/2

3:41 pm-9:53 pm

1 stop6h 12m

$264

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Sat 12/20

6:59 pm-11:42 pm

1 stop4h 43m

Lambert-St Louis

Mon 1/5

7:10 am-1:32 pm

1 stop6h 22m

$264

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Thu 11/20

6:00 am-10:43 am

1 stop4h 43m

Lambert-St Louis

Mon 11/24

7:05 am-1:35 pm

1 stop6h 30m

$264

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Sat 12/27

6:59 pm-11:42 pm

1 stop4h 43m

Lambert-St Louis

Wed 12/31

9:47 am-3:01 pm

1 stop5h 14m

$279

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Thu 11/20

5:07 am-2:24 pm

2 stops9h 17m

Lambert-St Louis

Mon 11/24

4:35 pm-10:44 pm

1 stop6h 09m

$284

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Thu 2/19

6:49 pm-11:38 pm

1 stop4h 49m

Lambert-St Louis

Mon 2/23

10:13 am-3:15 pm

1 stop5h 02m

$294

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Sat 11/22

12:10 pm-9:40 pm

2 stops9h 30m

Lambert-St Louis

Tue 11/25

6:15 am-1:22 pm

1 stop7h 07m

$298

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Wed 12/24

10:34 am-4:28 pm

1 stop5h 54m

Lambert-St Louis

Wed 1/7

9:59 am-5:10 pm

1 stop7h 11m

$304

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

Sat 12/20

6:59 pm-11:42 pm

1 stop4h 43m

Lambert-St Louis

Thu 1/8

7:10 am-1:32 pm

1 stop6h 22m

$304

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 13 results
1
2

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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Baton Rouge-St. Louis flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 November 6, 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 November 6, 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
7.9
Good
8,001 reviews

Comfort

7.9

Overall

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,001 reviews
Delta
7.9
Good
8,001 reviews

Comfort

7.9

Overall

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,007 reviews
Delta
7.9
Good
8,001 reviews

Comfort

7.9

Overall

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,040 reviews
Delta
7.9
Good
8,001 reviews

Comfort

7.9

Overall

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 5h 34m. Fly via Delta to get the fastest option. There are 569 mi between Baton Rouge and St. Louis.

  • 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 28% 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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$248Average$463FlexibilityNo cancel feeOn-time69%
DeltaCheapest$248Average$312FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$253Average$326FlexibilityNo cancel feeOn-time71%

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