$220+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BTR
Sep 10 — Sep 171
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Baton Rouge 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 St. Louis to Baton Rouge
Cheapest
Best
Last-minute
One-way
Cheapest flights from St. Louis to Baton RougeExplore 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 August 11, 2026.
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 August 11, 2026.
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Thu 9/108:30 am -
1 stop5h 25m
Wed 9/1611:21 am -
1 stop6h 43m
Deal found 8/11![American Airlines logo]()
$317
This American Airlines deal was found by Cheapflights users on 8/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:42 am -
1 stop5h 00m
Sat 9/511:14 am -
1 stop6h 51m
Deal found 8/10![American Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 8/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/13:12 pm -
1 stop6h 04m
Sat 10/1012:05 pm -
2 stops9h 16m
Deal found 8/6![United Airlines logo]()
$322
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Wed 9/211:15 am -
1 stop6h 18m
Sat 9/52:15 pm -
2 stops8h 44m
Deal found 8/10![United Airlines logo]()
$324
This United Airlines deal was found by Cheapflights users on 8/7. 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.
Fri 10/23:12 pm -
1 stop6h 04m
Tue 10/67:15 am -
2 stops8h 28m
Deal found 8/7![United Airlines logo]()
$348
This American Airlines deal was found by Cheapflights users on 8/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2512:45 pm -
1 stop4h 58m
Sat 8/2911:14 am -
1 stop5h 00m
Deal found 8/10![American Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 8/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1412:52 pm -
1 stop5h 34m
Tue 9/156:03 am -
1 stop4h 52m
Deal found 8/11![Delta logo]()
$377
This Delta deal was found by Cheapflights users on 8/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:00 am -
1 stop5h 56m
Mon 10/125:53 pm -
1 stop6h 01m
Deal found 8/8![Delta logo]()
$378
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Fri 10/166:32 am -
1 stop4h 22m
Mon 10/195:26 pm -
1 stop4h 33m
Deal found 8/11![American Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 8/11. 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 8/1411:15 am -
1 stop4h 15m
Tue 9/1512:00 pm -
2 stops10h 00m
Deal found 8/11![United Airlines logo]()
$382
This American Airlines deal was found by Cheapflights users on 8/8. 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.
Sat 9/59:31 am -
2 stops10h 35m
Fri 9/115:28 pm -
1 stop6h 15m
Deal found 8/8![American Airlines logo]()
$384
Best flights from St. Louis to Baton RougeDiscover carefully curated flight deals from St. Louis to Baton Rouge that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.
Discover carefully curated flight deals from St. Louis to Baton Rouge that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.
This American Airlines deal was found by Cheapflights users on 8/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:42 am -
1 stop5h 00m
Sat 9/511:14 am -
1 stop6h 51m
Deal found 8/10![American Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 8/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/13:12 pm -
1 stop6h 04m
Sat 10/1012:05 pm -
2 stops9h 16m
Deal found 8/6![United Airlines logo]()
$322
This Delta deal was found by Cheapflights users on 8/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:00 am -
1 stop5h 56m
Mon 10/125:53 pm -
1 stop6h 01m
Deal found 8/8![Delta logo]()
$378
This United Airlines deal was found by Cheapflights users on 8/8. 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 9/2911:10 am -
1 stop4h 22m
Sat 10/37:15 am -
1 stop6h 55m
Deal found 8/8![United Airlines logo]()
$395
This United Airlines deal was found by Cheapflights users on 8/9. 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 9/26:15 am -
1 stop4h 58m
Tue 9/812:00 pm -
1 stop6h 31m
Deal found 8/9![United Airlines logo]()
$397
Last-minute flights from St. Louis to Baton RougeDiscover last-minute flight deals from St. Louis to Baton Rouge. Data last updated August 11, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Baton Rouge. Data last updated August 11, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1412:52 pm -
1 stop5h 34m
Tue 9/156:03 am -
1 stop4h 52m
Deal found 8/11![Delta logo]()
$377
This United Airlines deal was found by Cheapflights users on 8/11. 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 8/1411:15 am -
1 stop4h 15m
Tue 9/1512:00 pm -
2 stops10h 00m
Deal found 8/11![United Airlines logo]()
$382
This American Airlines deal was found by Cheapflights users on 8/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2512:45 pm -
1 stop4h 58m
Sat 8/2911:14 am -
1 stop5h 00m
Deal found 8/10![American Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 8/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:42 am -
1 stop5h 00m
Sat 9/511:14 am -
1 stop6h 51m
Deal found 8/10![American Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Wed 9/211:15 am -
1 stop6h 18m
Sat 9/52:15 pm -
2 stops8h 44m
Deal found 8/10![United Airlines logo]()
$324
This United Airlines deal was found by Cheapflights users on 8/9. 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 9/26:15 am -
1 stop4h 58m
Tue 9/812:00 pm -
1 stop6h 31m
Deal found 8/9![United Airlines logo]()
$397
This American Airlines deal was found by Cheapflights users on 8/8. 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.
Sat 9/59:31 am -
2 stops10h 35m
Fri 9/115:28 pm -
1 stop6h 15m
Deal found 8/8![American Airlines logo]()
$384
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Thu 9/108:30 am -
1 stop5h 25m
Wed 9/1611:21 am -
1 stop6h 43m
Deal found 8/11![American Airlines logo]()
$317
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Tue 9/298:35 am -
1 stop6h 57m
Sat 10/34:07 pm -
1 stop6h 23m
Deal found 8/10![United Airlines logo]()
$395
One-way flights from St. Louis to Baton RougeSearch for one-way flight options from St. Louis to Baton Rouge. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.
Search for one-way flight options from St. Louis to Baton Rouge. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.
This American Airlines deal was found by Cheapflights users on 8/6. 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 10/15:43 am -
1 stop5h 08m
Deal found 8/6![American Airlines logo]()
$220
This United Airlines deal was found by Cheapflights users on 8/11. 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.
Thu 11/56:15 am -
1 stop5h 06m
Deal found 8/11![United Airlines logo]()
$313
This United Airlines deal was found by Cheapflights users on 8/7. 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 9/216:15 am -
1 stop4h 58m
Deal found 8/7![United Airlines logo]()
$343
This United Airlines deal was found by Cheapflights users on 8/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:30 am -
2 stops10h 13m
Deal found 8/6![United Airlines logo]()
$348
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 August 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $317 (United Airlines) |
One-way from | $220 (American Airlines) |
Popular in | December |
Cheapest in | October |
Average price | $288 |
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 August 11, 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
Cheapest round-trip
St. LouisBaton Rouge
STL Lambert-St Louis - BTR Baton Rouge Ryan
STLBTR
Lambert-St Louis
Wed 9/2
5:42 am-10:42 am
1 stop5h 00m
Baton Rouge Ryan
Sat 9/5
11:14 am-6:05 pm
1 stop6h 51m
$319
St. LouisBaton Rouge
STL Lambert-St Louis - BTR Baton Rouge Ryan
STLBTR
Lambert-St Louis
Thu 10/1
3:12 pm-9:16 pm
1 stop6h 04m
Baton Rouge Ryan
Sat 10/10
12:05 pm-9:21 pm
2 stops9h 16m
$322
St. LouisBaton Rouge
STL Lambert-St Louis - BTR Baton Rouge Ryan
STLBTR
Lambert-St Louis
Thu 10/8
7:00 am-12:56 pm
1 stop5h 56m
Baton Rouge Ryan
Mon 10/12
5:53 pm-11:54 pm
1 stop6h 01m
$378
Quickest round-trip
St. LouisBaton Rouge
STL Lambert-St Louis - BTR Baton Rouge Ryan
STLBTR
Lambert-St Louis
Tue 9/29
11:10 am-3:32 pm
1 stop4h 22m
Baton Rouge Ryan
Sat 10/3
7:15 am-2:10 pm
1 stop6h 55m
$395
St. LouisBaton Rouge
STL Lambert-St Louis - BTR Baton Rouge Ryan
STLBTR
Lambert-St Louis
Wed 9/2
6:15 am-11:13 am
1 stop4h 58m
Baton Rouge Ryan
Tue 9/8
12:00 pm-6:31 pm
1 stop6h 31m
$397
Cheapest one-way
St. LouisBaton Rouge
STL Lambert-St Louis - BTR Baton Rouge Ryan
STLBTR
Lambert-St Louis
Thu 11/5
6:15 am-11:21 am
1 stop5h 06m
$313
Quickest one-way
St. LouisBaton Rouge
STL Lambert-St Louis - BTR Baton Rouge Ryan
STLBTR
Lambert-St Louis
Mon 9/21
6:15 am-11:13 am
1 stop4h 58m
$343
St. LouisBaton Rouge
STL Lambert-St Louis - BTR Baton Rouge Ryan
STLBTR
Lambert-St Louis
Thu 10/1
7:30 am-5:43 pm
2 stops10h 13m
$348
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 August.
| 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 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.
STL-BTR
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
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 August 11, 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.
Entertainment
7.8
Boarding
8.1
Food
7.2
Comfort
7.8
Crew
8.5
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Boarding
8.1
Food
7.2
Comfort
7.8
Crew
8.5
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Boarding
8.1
Food
7.2
Comfort
7.8
Crew
8.5
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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.
Traveling to a place near Baton Rouge?
Book flights to Baton Rouge if you plan to visit one of these locationsMcComb
Saint Francisville
Denham Springs
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Other flights to Baton Rouge
Explore flights to Baton Rouge departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 11, 2026.
Complete your trip
Complete your trip to Baton Rouge by adding a car rental and/or hotel reservation to your travel itinerary.
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St. Louis and Baton Rouge flights
Browse other St. Louis and Baton Rouge flight options. Last updated on August 11, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on August 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 August 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$248 | Average$371 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$273 | Average$360 | FlexibilityNo cancel fee | On-timeN/A |