$274+ 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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
BTR — STL
Oct 9 — Oct 161
Round-trip
1 adult, Economy
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Find cheap flights from Baton Rouge to St. Louis with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Baton Rouge to St. Louis
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Cheapest flights from Baton Rouge to St. LouisExplore 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 September 9, 2026.
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 September 9, 2026.
This American Airlines deal was found by Cheapflights users on 9/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:28 pm -
1 stop4h 31m
Mon 11/92:54 pm -
1 stop6h 10m
Deal found 9/4![American Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 9/8. 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 9/2311:21 am -
1 stop6h 43m
Sun 9/275:43 am -
1 stop5h 08m
Deal found 9/8![American Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 9/5. 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.
Wed 10/711:24 am -
1 stop6h 56m
Sun 10/116:32 am -
1 stop4h 22m
Deal found 9/5![American Airlines logo]()
$359
This American Airlines deal was found by Cheapflights users on 9/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/85:26 pm -
1 stop6h 16m
Sun 10/115:40 am -
1 stop5h 14m
Deal found 9/4![American Airlines logo]()
$384
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/291:55 pm -
1 stop6h 21m
Sat 10/33:12 pm -
1 stop4h 19m
Deal found 9/8![United Airlines logo]()
$399
This Delta deal was found by Cheapflights users on 9/7. 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 9/106:03 am -
1 stop6h 29m
Tue 9/156:00 am -
1 stop6h 52m
Deal found 9/7![Delta logo]()
$439
Best flights from Baton Rouge to St. LouisDiscover carefully curated flight deals from Baton Rouge to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
Discover carefully curated flight deals from Baton Rouge to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
This American Airlines deal was found by Cheapflights users on 9/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:28 pm -
1 stop6h 05m
Mon 11/910:21 am -
1 stop6h 36m
Deal found 9/6![American Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/291:55 pm -
1 stop6h 21m
Sat 10/33:12 pm -
1 stop4h 19m
Deal found 9/8![United Airlines logo]()
$399
This American Airlines deal was found by Cheapflights users on 9/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/711:24 am -
1 stop6h 56m
Sun 10/116:32 am -
1 stop4h 22m
Deal found 9/6![American Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 9/4. 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 11/55:00 am -
1 stop5h 02m
Mon 11/95:00 am -
2 stops12h 38m
Deal found 9/4![United Airlines logo]()
$404
This American Airlines deal was found by Cheapflights users on 9/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:26 pm -
1 stop6h 16m
Sun 10/115:40 am -
1 stop5h 14m
Deal found 9/4![American Airlines logo]()
$384
Last-minute flights from Baton Rouge to St. LouisDiscover last-minute flight deals from Baton Rouge to St. Louis. Data last updated September 9, 2026 and is based on user searches.
Discover last-minute flight deals from Baton Rouge to St. Louis. Data last updated September 9, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/7. 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 9/106:03 am -
1 stop6h 29m
Tue 9/156:00 am -
1 stop6h 52m
Deal found 9/7![Delta logo]()
$439
This American Airlines deal was found by Cheapflights users on 9/8. 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 9/2311:21 am -
1 stop6h 43m
Sun 9/275:43 am -
1 stop5h 08m
Deal found 9/8![American Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/291:55 pm -
1 stop6h 21m
Sat 10/33:12 pm -
1 stop4h 19m
Deal found 9/8![United Airlines logo]()
$399
This American Airlines deal was found by Cheapflights users on 9/5. 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.
Wed 10/711:24 am -
1 stop6h 56m
Sun 10/116:32 am -
1 stop4h 22m
Deal found 9/5![American Airlines logo]()
$359
This American Airlines deal was found by Cheapflights users on 9/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/85:26 pm -
1 stop6h 16m
Sun 10/115:40 am -
1 stop5h 14m
Deal found 9/4![American Airlines logo]()
$384
This American Airlines deal was found by Cheapflights users on 9/7. 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 10/95:26 pm -
1 stop6h 16m
Sun 10/115:40 am -
1 stop5h 14m
Deal found 9/7![American Airlines logo]()
$319
One-way flights from Baton Rouge to St. LouisSearch for one-way flight options from Baton Rouge to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
Search for one-way flight options from Baton Rouge to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
This American Airlines deal was found by Cheapflights users on 9/8. 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 10/195:26 pm -
1 stop4h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![American Airlines logo]()
$274
This Delta deal was found by Cheapflights users on 9/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/210:19 am -
1 stop6h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Delta logo]()
$275
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/185:20 am -
1 stop4h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![United Airlines logo]()
$296
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Mon 11/25:00 am -
1 stop5h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![United Airlines logo]()
$323
This Delta deal was found by Cheapflights users on 9/7. 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.
Mon 9/213:48 pm -
1 stop4h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Delta logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Mon 9/2112:00 pm -
2 stops10h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![United Airlines logo]()
$384
This American Airlines deal was found by Cheapflights users on 9/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1511:21 am -
1 stop6h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![American Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Sun 9/274:13 pm -
1 stop6h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![United Airlines logo]()
$439
Find 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 September 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $319 (American Airlines) |
One-way from | $275 (Delta) |
Popular in | November |
Cheapest in | January |
Average price | $437 |
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 7,457,451 searches. Data last updated September 9, 2026.
Use the filters below to find and compare flights from Baton Rouge to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
Baton RougeSt. Louis
BTR Baton Rouge Ryan - STL Lambert-St Louis
BTRSTL
Baton Rouge Ryan
Mon 10/19
5:26 pm-9:59 pm
1 stop4h 33m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$274
Baton RougeSt. Louis
BTR Baton Rouge Ryan - STL Lambert-St Louis
BTRSTL
Baton Rouge Ryan
Mon 11/2
10:19 am-4:28 pm
1 stop6h 09m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$275
Baton RougeSt. Louis
BTR Baton Rouge Ryan - STL Lambert-St Louis
BTRSTL
Baton Rouge Ryan
Sun 10/18
5:20 am-10:10 am
1 stop4h 50m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$296
Baton RougeSt. Louis
BTR Baton Rouge Ryan - STL Lambert-St Louis
BTRSTL
Baton Rouge Ryan
Thu 11/5
5:28 pm-11:33 pm
1 stop6h 05m
Lambert-St Louis
Mon 11/9
10:21 am-4:57 pm
1 stop6h 36m
$319
Baton RougeSt. Louis
BTR Baton Rouge Ryan - STL Lambert-St Louis
BTRSTL
Baton Rouge Ryan
Mon 11/2
2:01 pm-11:24 pm
2 stops9h 23m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$358
Baton RougeSt. Louis
BTR Baton Rouge Ryan - STL Lambert-St Louis
BTRSTL
Baton Rouge Ryan
Wed 10/7
11:24 am-6:20 pm
1 stop6h 56m
Lambert-St Louis
Sun 10/11
6:32 am-10:54 am
1 stop4h 22m
$359
Baton RougeSt. Louis
BTR Baton Rouge Ryan - STL Lambert-St Louis
BTRSTL
Baton Rouge Ryan
Fri 10/9
5:26 pm-11:42 pm
1 stop6h 16m
Lambert-St Louis
Sun 10/11
5:40 am-10:54 am
1 stop5h 14m
$384
Baton RougeSt. Louis
BTR Baton Rouge Ryan - STL Lambert-St Louis
BTRSTL
Baton Rouge Ryan
Tue 9/29
1:55 pm-8:16 pm
1 stop6h 21m
Lambert-St Louis
Sat 10/3
3:12 pm-7:31 pm
1 stop4h 19m
$399
Baton RougeSt. Louis
BTR Baton Rouge Ryan - STL Lambert-St Louis
BTRSTL
Baton Rouge Ryan
Thu 11/5
5:00 am-10:02 am
1 stop5h 02m
Lambert-St Louis
Mon 11/9
5:00 am-5:38 pm
2 stops12h 38m
$404
Baton RougeSt. Louis
BTR Baton Rouge Ryan - STL Lambert-St Louis
BTRSTL
Baton Rouge Ryan
Tue 9/15
11:21 am-6:04 pm
1 stop6h 43m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$424
Showing 1-10 of 11 resultsSorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
BTR-STL
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 $263). Flying from Baton Rouge to St. Louis in November is currently the most expensive (average of $502). 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 Baton Rouge to St. Louis?
Airfare is typical for this route at the moment.
Baton Rouge to St. Louis flights typically cost between $316 and $496 in November.The cheapest round-trip price found within the last 5 days was $319 on American Airlines (Nov 5-Nov 9).
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 September 9, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAmerican 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.
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Overall
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Aug 2023
MSY - ATL
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Overall
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Aug 2023
MSY - ATL
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Overall
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Aug 2023
MSY - ATL
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Overall
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Aug 2023
MSY - ATL
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.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsFairview Heights
O'Fallon
Fenton
Swansea
Eureka
Maryland Heights
Collinsville
Wentzville
Edwardsville
Glencoe
Chesterfield
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Complete your trip
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Baton Rouge and St. Louis flights
Browse other Baton Rouge and St. Louis flight options. Last updated on September 9, 2026.
Other flights from Baton Rouge
Browse through other flights departing from Baton Rouge. Flights are based on user searches made on Cheapflights and were last updated on September 9, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 9, 2026.
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 7,457,451 searches. Data last updated September 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$228 | Average$396 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$248 | Average$392 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$273 | Average$368 | FlexibilityNo cancel fee | On-timeN/A |