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 $249. Other airlines that can offer you cheap pricing are American Airlines, from $259, and United Airlines, from $278. Delta is priced at 34% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from St. Louis to Baton Rouge one-way?

One-way options have recently been found by users for as low as $225 on Delta. Other airlines that offer cheap prices include United Airlines from $290 and American Airlines from $440 one-way.

What is the cheapest day to fly from St. Louis to Baton Rouge?

Travelers seeking maximum savings on their St. Louis to Baton Rouge flight should consider departing on Wednesday mornings when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Baton Rouge ranges from 3.4 - 6.0 inches per month. July is typically the wettest month, when rainfall can reach 6.0 in. October is typically the driest time to visit Baton Rouge when rainfall is around 3.4 in.

If weather is an important factor for your trip to Baton Rouge, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

What are the most popular airlines that fly from St. Louis to Baton Rouge?

Before booking your flight from St. Louis to Baton Rouge check out the most popular airlines for this route: American Airlines, Delta or United Airlines.

What is the cheapest day to fly round-trip from St. Louis to Baton Rouge?

Travelers have found that booking a Tuesday departure is the best way to save up to 55% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

What is the cheapest month to fly from St. Louis to Baton Rouge?

Our data shows that July tends to be the cheapest month to fly to Baton Rouge from St. Louis. Users have commonly found prices around $383 for the month, but tickets can be as low as $229. Due to multiple factors, prepare for potentially higher prices in September.

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.

$225+ Flights from St. Louis to Baton Rouge

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Cheap flight deals from St. Louis to Baton Rouge

Round-trip from	$249 (Delta)
One-way from	$225 (Delta)
Popular in	September
Cheapest in	July
Average price	$283

From Lambert-St Louis to Baton Rouge Ryan

Search Deals

One-way flight from Lambert-St Louis to Baton Rouge Ryan

Search Deals

Highest demand for flights based on searches. 14% potential increase in price ($64 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

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Find 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 3, 2025.

Fri 8/85:23 pmSTL - BTR

1 stop4h 35mDelta

Sat 8/164:38 pmBTR - STL

1 stop5h 24mDelta

Deal found 7/2

$249

Wed 7/165:30 amSTL - BTR

1 stop4h 43mAmerican Airlines

Sun 7/206:32 pmBTR - STL

1 stop5h 27mAmerican Airlines

Deal found 7/1

$259

Fri 8/85:00 amSTL - BTR

2 stops8h 18mUnited Airlines

Mon 8/112:00 pmBTR - STL

1 stop4h 53mUnited Airlines

Deal found 7/2

$278

Best flights from St. Louis to Baton Rouge
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 July 3, 2025.

Fri 8/85:23 pmSTL - BTR

1 stop4h 35mDelta

Sat 8/164:38 pmBTR - STL

1 stop5h 24mDelta

Deal found 7/2

$249

Wed 7/165:30 amSTL - BTR

1 stop4h 43mAmerican Airlines

Sun 7/206:32 pmBTR - STL

1 stop5h 27mAmerican Airlines

Deal found 7/1

$259

Fri 8/85:00 amSTL - BTR

2 stops8h 18mUnited Airlines

Mon 8/112:00 pmBTR - STL

1 stop4h 53mUnited Airlines

Deal found 7/2

$278

Last-minute flights from St. Louis to Baton Rouge
Discover last-minute flight deals from St. Louis to Baton Rouge. Data last updated July 3, 2025 and is based on user searches.

Thu 7/104:28 pmSTL - BTR

1 stop7h 15mAmerican Airlines

Sat 7/126:32 pmBTR - STL

1 stop5h 27mAmerican Airlines

Deal found 7/1

$309

Thu 7/105:00 amSTL - BTR

2 stops8h 18mUnited Airlines

Mon 7/145:10 amBTR - STL

1 stop4h 18mUnited Airlines

Deal found 7/2

$314

Fri 7/115:23 pmSTL - BTR

1 stop4h 35mDelta

Sun 7/136:10 amBTR - STL

1 stop6h 24mDelta

Deal found 7/1

$489

Wed 7/165:30 amSTL - BTR

1 stop4h 43mAmerican Airlines

Sun 7/206:32 pmBTR - STL

1 stop5h 27mAmerican Airlines

Deal found 7/1

$259

Fri 8/85:23 pmSTL - BTR

1 stop4h 35mDelta

Sat 8/164:38 pmBTR - STL

1 stop5h 24mDelta

Deal found 7/2

$249

Fri 8/85:00 amSTL - BTR

2 stops8h 18mUnited Airlines

Mon 8/112:00 pmBTR - STL

1 stop4h 53mUnited Airlines

Deal found 7/2

$278

One-way flights from St. Louis to Baton Rouge
Search for one-way flight options from St. Louis to Baton Rouge. Find affordable one-way fares based on user searches. Data last updated July 3, 2025.

Thu 7/319:27 amSTL - BTR

1 stop5h 05mDelta

Deal found 7/1

$225

Thu 7/315:00 amSTL - BTR

2 stops8h 18mUnited Airlines

Deal found 7/1

$290

Mon 7/147:23 amSTL - BTR

2 stops8h 20mAmerican Airlines

Deal found 7/2

$440

Cheapflights Fare Finder

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

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Fri 8/8

5:23 pm-9:58 pm

1 stop4h 35m

Baton Rouge Ryan

Sat 8/16

4:38 pm-10:02 pm

1 stop5h 24m

$249

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Wed 7/16

5:30 am-10:13 am

1 stop4h 43m

Baton Rouge Ryan

Sun 7/20

6:32 pm-11:59 pm

1 stop5h 27m

$259

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Fri 8/8

5:00 am-1:18 pm

2 stops8h 18m

Baton Rouge Ryan

Mon 8/11

2:00 pm-6:53 pm

1 stop4h 53m

$278

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Thu 7/31

9:27 am-2:32 pm

1 stop5h 05m

$225

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Thu 7/31

5:00 am-1:18 pm

2 stops8h 18m

$290

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Sat 7/12

4:07 pm-11:43 pm

1 stop7h 36m

$336

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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, August is the cheapest month in which you can book a flight from St. Louis to Baton Rouge (average of $334). Flying from St. Louis to Baton Rouge in March is currently the most expensive (average of $455). 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 STL to BTR?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 32% on flights from St. Louis to Baton Rouge by exploring options for tickets at noon.

Reviews of airlines servicing Baton Rouge

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

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,982 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,861 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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 $249. Other airlines that can offer you cheap pricing are American Airlines, from $259, and United Airlines, from $278. Delta is priced at 34% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from St. Louis to Baton Rouge one-way?
One-way options have recently been found by users for as low as $225 on Delta. Other airlines that offer cheap prices include United Airlines from $290 and American Airlines from $440 one-way.
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, August is the cheapest month in which you can book a flight from St. Louis to Baton Rouge (average of $334). Flying from St. Louis to Baton Rouge in March is currently the most expensive (average of $455). 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

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Top 3 airlines flying from St. Louis to Baton Rouge

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$232	Average$323	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$253	Average$371	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$258	Average$418	FlexibilityNo cancel fee	On-time69%

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$225+ 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 7/31. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Baton Rouge with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from St. Louis to Baton Rouge

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from St. Louis to Baton Rouge

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 July 3, 2025.

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 3, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Baton Rouge that are best for you.

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.

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?

What is the cheapest time of day to fly from STL to BTR?

Find hourly flight availability from St. Louis to Baton Rouge. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

Reviews of airlines servicing Baton Rouge

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

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.

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

What are the cheapest airlines to fly from St. Louis to Baton Rouge one-way?

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

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

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

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

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Alternative routes for St. Louis to Baton Rouge

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Top 3 airlines flying from St. Louis to Baton Rouge

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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 3, 2025.