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Cheap flights from Baton Rouge to St. Louis from $284

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Baton Rouge to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
3:59 pm - 10:30 pmBTR  Baton Rouge Ryan-STL Lambert-St Louis
6h 31m1 stop Houston George Bush Intcntl
United Airlines Logo
8:50 am - 1:15 pmSTL  Lambert-St Louis-BTR Baton Rouge Ryan
4h 25m1 stop Houston George Bush Intcntl
$337United Airlines
Fri, Dec 18 - Wed, Jan 6
United Airlines Logo
4:13 pm - 10:26 pmBTR  Baton Rouge Ryan-STL Lambert-St Louis
6h 13m1 stop Houston George Bush Intcntl
United Airlines Logo
6:15 am - 11:21 amSTL  Lambert-St Louis-BTR Baton Rouge Ryan
5h 06m1 stop Houston George Bush Intcntl
$337United Airlines
Mon, Nov 2 - Wed, Nov 11
American Airlines Logo
5:26 pm - 9:59 pmBTR  Baton Rouge Ryan-STL Lambert-St Louis
4h 33m1 stop Dallas/Fort Worth
American Airlines Logo
5:40 am - 10:54 amSTL  Lambert-St Louis-BTR Baton Rouge Ryan
5h 14m1 stop Dallas/Fort Worth
$339American Airlines
Wed, Oct 21 - Mon, Oct 26
American Airlines Logo
5:26 pm - 11:42 pmBTR  Baton Rouge Ryan-STL Lambert-St Louis
6h 16m1 stop Dallas/Fort Worth
American Airlines Logo
5:40 am - 10:54 amSTL  Lambert-St Louis-BTR Baton Rouge Ryan
5h 14m1 stop Dallas/Fort Worth
$339American Airlines
Thu, Oct 22 - Sun, Oct 25
Delta Logo
3:49 pm - 9:13 pmBTR  Baton Rouge Ryan-STL Lambert-St Louis
5h 24m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:00 am - 12:56 pmSTL  Lambert-St Louis-BTR Baton Rouge Ryan
5h 56m1 stop Atlanta Hartsfield-Jackson
$339Delta
Wed, Oct 21 - Tue, Oct 27
Delta Logo
3:49 pm - 9:13 pmBTR  Baton Rouge Ryan-STL Lambert-St Louis
5h 24m1 stop Atlanta Hartsfield-Jackson
Delta Logo
12:00 pm - 5:12 pmSTL  Lambert-St Louis-BTR Baton Rouge Ryan
5h 12m1 stop Atlanta Hartsfield-Jackson
$339Delta
Wed, Oct 21 - Wed, Oct 28
American Airlines Logo
2:29 pm - 7:48 pmBTR  Baton Rouge Ryan-STL Lambert-St Louis
5h 19m1 stop Dallas/Fort Worth
American Airlines Logo
6:00 am - 10:31 amSTL  Lambert-St Louis-BTR Baton Rouge Ryan
4h 31m1 stop Dallas/Fort Worth
$339American Airlines
Fri, Oct 30 - Sun, Nov 1
Delta Logo
6:03 am - 10:51 amBTR  Baton Rouge Ryan-STL Lambert-St Louis
4h 48m1 stop Atlanta Hartsfield-Jackson
Delta Logo
10:47 am - 3:10 pmSTL  Lambert-St Louis-BTR Baton Rouge Ryan
4h 23m1 stop Atlanta Hartsfield-Jackson
$339Delta
Wed, Oct 21 - Sat, Oct 24
United Airlines Logo
5:20 am - 10:10 amBTR  Baton Rouge Ryan-STL Lambert-St Louis
4h 50m1 stop Houston George Bush Intcntl
United Airlines Logo
11:00 am - 3:38 pmSTL  Lambert-St Louis-BTR Baton Rouge Ryan
4h 38m1 stop Houston George Bush Intcntl
$339United Airlines
Fri, Oct 23 - Tue, Oct 27
United Airlines Logo
3:59 pm - 10:30 pmBTR  Baton Rouge Ryan-STL Lambert-St Louis
6h 31m1 stop Houston George Bush Intcntl
United Airlines Logo
10:50 am - 7:41 pmSTL  Lambert-St Louis-BTR Baton Rouge Ryan
8h 51m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
$342United Airlines
Fri, Dec 18 - Wed, Jan 6

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American Airlines flights from Baton Rouge to St. Louis

Our best American Airlines deals on Baton Rouge to St. Louis flight tickets
American Airlines
Oct 14
BTR2:29 pmBaton Rouge Ryan
5h 19m
1 stop
STL7:48 pmLambert-St Louis
Oct 18
STL5:40 amLambert-St Louis
5h 14m
1 stop
BTR10:54 amBaton Rouge Ryan
$369
American Airlines
Oct 21
BTR5:26 pmBaton Rouge Ryan
4h 33m
1 stop
STL9:59 pmLambert-St Louis
Oct 25
STL5:40 amLambert-St Louis
5h 14m
1 stop
BTR10:54 amBaton Rouge Ryan
$439
American Airlines
Oct 21
BTR11:57 amBaton Rouge Ryan
9h 00m
2 stops
STL8:57 pmLambert-St Louis
Oct 26
STL6:32 amLambert-St Louis
4h 22m
1 stop
BTR10:54 amBaton Rouge Ryan
$450

United Airlines flights from Baton Rouge to St. Louis

Our best United Airlines deals on Baton Rouge to St. Louis flight tickets
United Airlines
Nov 2
BTR4:13 pmBaton Rouge Ryan
6h 13m
1 stop
STL10:26 pmLambert-St Louis
Nov 11
STL6:15 amLambert-St Louis
5h 06m
1 stop
BTR11:21 amBaton Rouge Ryan
$337
United Airlines
Nov 2
BTR4:13 pmBaton Rouge Ryan
6h 13m
1 stop
STL10:26 pmLambert-St Louis
Nov 11
STL5:00 amLambert-St Louis
8h 26m
2 stops
BTR1:26 pmBaton Rouge Ryan
$342
United Airlines
Oct 23
BTR5:20 amBaton Rouge Ryan
4h 50m
1 stop
STL10:10 amLambert-St Louis
Oct 27
STL7:30 amLambert-St Louis
10h 08m
2 stops
BTR5:38 pmBaton Rouge Ryan
$344

momondo Fare Finder

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

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Route

Depart

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Price

Cheapest round-trip

Baton RougeSt. Louis

BTR Baton Rouge Ryan - STL Lambert-St Louis

BTRSTL

Baton Rouge Ryan

Fri 12/18

3:59 pm-10:30 pm

1 stop6h 31m

Lambert-St Louis

Wed 1/6

8:50 am-1:15 pm

1 stop4h 25m

$337

Baton RougeSt. Louis

BTR Baton Rouge Ryan - STL Lambert-St Louis

BTRSTL

Baton Rouge Ryan

Mon 11/2

4:13 pm-10:26 pm

1 stop6h 13m

Lambert-St Louis

Wed 11/11

6:15 am-11:21 am

1 stop5h 06m

$337

Baton RougeSt. Louis

BTR Baton Rouge Ryan - STL Lambert-St Louis

BTRSTL

Baton Rouge Ryan

Wed 10/21

5:26 pm-9:59 pm

1 stop4h 33m

Lambert-St Louis

Mon 10/26

5:40 am-10:54 am

1 stop5h 14m

$339

Baton RougeSt. Louis

BTR Baton Rouge Ryan - STL Lambert-St Louis

BTRSTL

Baton Rouge Ryan

Thu 10/22

5:26 pm-11:42 pm

1 stop6h 16m

Lambert-St Louis

Sun 10/25

5:40 am-10:54 am

1 stop5h 14m

$339

Baton RougeSt. Louis

BTR Baton Rouge Ryan - STL Lambert-St Louis

BTRSTL

Baton Rouge Ryan

Wed 10/21

3:49 pm-9:13 pm

1 stop5h 24m

Lambert-St Louis

Tue 10/27

7:00 am-12:56 pm

1 stop5h 56m

$339

Baton RougeSt. Louis

BTR Baton Rouge Ryan - STL Lambert-St Louis

BTRSTL

Baton Rouge Ryan

Wed 10/21

3:49 pm-9:13 pm

1 stop5h 24m

Lambert-St Louis

Wed 10/28

12:00 pm-5:12 pm

1 stop5h 12m

$339

Baton RougeSt. Louis

BTR Baton Rouge Ryan - STL Lambert-St Louis

BTRSTL

Baton Rouge Ryan

Fri 10/30

2:29 pm-7:48 pm

1 stop5h 19m

Lambert-St Louis

Sun 11/1

6:00 am-10:31 am

1 stop4h 31m

$339
Quickest round-trip

Baton RougeSt. Louis

BTR Baton Rouge Ryan - STL Lambert-St Louis

BTRSTL

Baton Rouge Ryan

Wed 10/21

6:03 am-10:51 am

1 stop4h 48m

Lambert-St Louis

Sat 10/24

10:47 am-3:10 pm

1 stop4h 23m

$339

Baton RougeSt. Louis

BTR Baton Rouge Ryan - STL Lambert-St Louis

BTRSTL

Baton Rouge Ryan

Fri 10/23

5:20 am-10:10 am

1 stop4h 50m

Lambert-St Louis

Tue 10/27

11:00 am-3:38 pm

1 stop4h 38m

$339

Baton RougeSt. Louis

BTR Baton Rouge Ryan - STL Lambert-St Louis

BTRSTL

Baton Rouge Ryan

Fri 12/18

3:59 pm-10:30 pm

1 stop6h 31m

Lambert-St Louis

Wed 1/6

10:50 am-7:41 pm

2 stops8h 51m

$342

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Baton Rouge to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Baton Rouge and St. Louis?

Prices are currently low for flights on this route.

Typical prices usually range from $338 to $502.
The lowest price recently found on this route was $337.

What is the cheapest month to fly to St. Louis?

In general, January is the cheapest month to fly from Baton Rouge to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $263. The month of February is another great option to travel to St. Louis, with average flight prices from Baton Rouge averaging around $273.

How have Baton Rouge to St. Louis flight prices changed over time?

As of October 2026, prices for Baton Rouge to St. Louis flights are approximately 68% more expensive when compared to flights at the same time last year.

When to book flights from Baton Rouge to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Baton Rouge to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Baton Rouge to St. Louis (BTR to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Baton Rouge to St. Louis

Best Price Found

$284

Fastest flight time

4h 21m

Direct flights

None
The best one-way flight to St. Louis from Baton Rouge in the past 72 hours is $284. The best round-trip flight deal from Baton Rouge to St. Louis found on momondo in the last 72 hours is $337.
The fastest flight from Baton Rouge to St. Louis takes 4h 21m
There are no direct flights from Baton Rouge to St. Louis. There are no popular flight routes from Baton Rouge to St. Louis.
Search flight deals

Frequently asked questions about flying from Baton Rouge to St. Louis

  • How far is Baton Rouge Ryan to Lambert-St Louis by plane?

    Lambert-St Louis is 567.0 mi away from Baton Rouge Ryan. 4h 21m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Baton Rouge Ryan Airport to Lambert-St Louis Airport?

    Prices for flights from Baton Rouge Ryan Airport to Lambert-St Louis Airport refresh daily.

  • How many operators does momondo search for flights from Baton Rouge Ryan Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Baton Rouge Ryan Airport to Lambert-St Louis Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Baton Rouge Ryan Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Baton Rouge to St. Louis?

Best airlines flying from Baton Rouge to St. Louis

Compare and see reviews for airlines that fly from Baton Rouge to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $228Free CancellationRating
7.4
10,275 reviews
Search United Airlines flights
American AirlinesPriceFrom $248Free CancellationRating
7.0
12,111 reviews
Search American Airlines flights
DeltaPriceFrom $306Free CancellationRating
7.8
8,622 reviews
Search Delta flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Maryland Heights
St. Peters
Alton
Collinsville
Florissant
Hermann
Farmington
Clayton
Festus
O'Fallon
Fenton
Edwardsville
Eureka
Wentzville
Litchfield
Grafton
Waterloo

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Why should I use momondo to find a flight deal from Baton Rouge to St. Louis?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Baton Rouge to St. Louis. momondo saves you time and could save you money on your trip.

Can I find flights from Baton Rouge to St. Louis with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Baton Rouge to St. Louis flights to just show those with flexible booking policies.

How can momondo help me find flights from Baton Rouge to St. Louis?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Baton Rouge to St. Louis.

I’m not ready to book a flight from Baton Rouge to St. Louis right now. Can momondo alert me if prices change?

If you are simply researching potential flights to St. Louis, momondo offers a useful price alert feature which will track prices for flights to St. Louis from Baton Rouge and alert you when they change.

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