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 $249. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $299 and $332, respectively. You may be able to fly from Baton Rouge to St. Louis for 30% less than the average price by searching for these airlines.

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

For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $164. Users have also found prices from $181 and $230 on Delta and United Airlines, respectively.

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

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

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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

The most popular airlines flying from Baton Rouge to St. Louis are American Airlines, Delta and United Airlines. Something to consider prior to booking your flight.

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

Leaving on a Monday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 57% on the overall cost on flights from Baton Rouge to St. Louis.

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

April can be a great time to fly to St. Louis from Baton Rouge with a flight ticket averaging about $357. Cheapflights users have found deals in the month of April for as cheap as $253. The most expensive prices can be found in the month of March.

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.

$164+ Flights from Baton Rouge to St. Louis

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Cheap flight deals from Baton Rouge to St. Louis

Round-trip from	$249 (Delta)
One-way from	$164 (American Airlines)
Popular in	March
Cheapest in	April
Average price	$372

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. 2% potential increase in price ($7 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 July 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 julio 2, 2025.

jue. 8/146:49 pmBTR - STL

1 stop4h 25mDelta

mar. 8/199:17 amSTL - BTR

1 stop6h 36mDelta

Deal found 7/1

$249

jue. 7/176:33 amBTR - STL

1 stop5h 25mAmerican Airlines

dom. 7/205:30 amSTL - BTR

1 stop4h 43mAmerican Airlines

Deal found 6/30

$299

mar. 9/95:00 amBTR - STL

2 stops9h 19mUnited Airlines

jue. 9/116:15 amSTL - BTR

1 stop4h 56mUnited Airlines

Deal found 6/30

$332

Best flights from Baton Rouge to St. Louis
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 julio 2, 2025.

jue. 8/146:49 pmBTR - STL

1 stop4h 25mDelta

mar. 8/199:17 amSTL - BTR

1 stop6h 36mDelta

Deal found 7/1

$249

jue. 7/176:33 amBTR - STL

1 stop5h 25mAmerican Airlines

dom. 7/205:30 amSTL - BTR

1 stop4h 43mAmerican Airlines

Deal found 6/30

$299

mar. 9/95:00 amBTR - STL

2 stops9h 19mUnited Airlines

jue. 9/116:15 amSTL - BTR

1 stop4h 56mUnited Airlines

Deal found 6/30

$332

Last-minute flights from Baton Rouge to St. Louis
Discover last-minute flight deals from Baton Rouge to St. Louis. Data last updated julio 2, 2025 and is based on user searches.

mié. 7/94:13 pmBTR - STL

1 stop6h 44mAmerican Airlines

dom. 7/135:30 amSTL - BTR

1 stop4h 43mAmerican Airlines

Deal found 6/30

$493

jue. 7/105:10 amBTR - STL

2 stops10h 37mUnited Airlines

dom. 7/136:33 amSTL - BTR

2 stops8h 54mUnited Airlines

Deal found 6/30

$587

jue. 7/176:33 amBTR - STL

1 stop5h 25mAmerican Airlines

dom. 7/205:30 amSTL - BTR

1 stop4h 43mAmerican Airlines

Deal found 6/30

$299

jue. 8/146:49 pmBTR - STL

1 stop4h 25mDelta

mar. 8/199:17 amSTL - BTR

1 stop6h 36mDelta

Deal found 7/1

$249

jue. 8/145:10 amBTR - STL

2 stops9h 27mUnited Airlines

mié. 8/206:15 amSTL - BTR

1 stop4h 56mUnited Airlines

Deal found 7/1

$380

One-way flights from Baton Rouge to St. Louis
Search for one-way flight options from Baton Rouge to St. Louis. Find affordable one-way fares based on user searches. Data last updated julio 2, 2025.

jue. 9/412:15 pmBTR - STL

1 stop6h 08mAmerican Airlines

Deal found 7/2

$164

sáb. 8/166:00 amBTR - STL

1 stop6h 31mDelta

Deal found 7/1

$181

sáb. 11/225:07 amBTR - STL

2 stops9h 13mUnited Airlines

Deal found 6/30

$230

Cheapflights Fare Finder

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

Price

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

jue. 8/14

6:49 pm-11:14 pm

1 stop4h 25m

Lambert-St Louis

mar. 8/19

9:17 am-3:53 pm

1 stop6h 36m

$249

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

jue. 7/17

6:33 am-11:58 am

1 stop5h 25m

Lambert-St Louis

dom. 7/20

5:30 am-10:13 am

1 stop4h 43m

$299

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

mar. 9/9

5:00 am-2:19 pm

2 stops9h 19m

Lambert-St Louis

jue. 9/11

6:15 am-11:11 am

1 stop4h 56m

$332

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

jue. 9/4

12:15 pm-6:23 pm

1 stop6h 08m

$164

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

sáb. 8/16

6:00 am-12:31 pm

1 stop6h 31m

$181

Baton RougeSt. Louis

BTR - STL

BTRSTL

Baton Rouge Ryan

sáb. 11/22

5:07 am-2:20 pm

2 stops9h 13m

$230

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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, August is the cheapest month in which you can book a flight from Baton Rouge to St. Louis (average of $311). Flying from Baton Rouge to St. Louis in March is currently the most expensive (average of $356). 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?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 15% on flights from Baton Rouge to St. Louis by exploring options for tickets in the evening.

Reviews of airlines servicing St. Louis

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

7,983 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

7,983 reviews

Delta

8.0

Very good

7,983 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

7,983 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

7,983 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 Baton Rouge to St. Louis round-trip?
Flying on Delta is currently your cheapest option to St. Louis, with prices starting at $249. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $299 and $332, respectively. You may be able to fly from Baton Rouge to St. Louis for 30% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Baton Rouge to St. Louis one-way?
For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $164. Users have also found prices from $181 and $230 on Delta and United Airlines, respectively.
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, August is the cheapest month in which you can book a flight from Baton Rouge to St. Louis (average of $311). Flying from Baton Rouge to St. Louis in March is currently the most expensive (average of $356). 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 Baton Rouge to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$248	Average$328	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$248	Average$392	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$253	Average$331	FlexibilityNo cancel fee	On-time71%

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$164+ 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.

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

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Baton Rouge to St. Louis

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Baton Rouge to St. Louis

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 julio 2, 2025.

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 julio 2, 2025.

Cheapflights Fare Finder

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

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.

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?

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 julio 2, 2025.

Reviews of airlines servicing St. Louis

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.

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.

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

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

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

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

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

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

Traveling to a place near Baton Rouge?

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Alternative routes for Baton Rouge to St. Louis

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Top 3 airlines flying from Baton Rouge to St. Louis

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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 julio 2, 2025.