What airlines fly to Louisiana?

Southwest, American Airlines and Delta are the top three most popular airlines that fly to Louisiana from St. Louis according to our data. Southwest is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Louisiana. Keep in mind that there are 5 different airlines that fly to Louisiana on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Lambert-St Louis to Louisiana?

Frontier, United Airlines, and American Airlines are the most popular carriers operating from Lambert-St Louis to Louisiana

How many flights depart from St. Louis to Louisiana on average per week?

The number of flights available between St. Louis and Louisiana is 6 per week as of December 2025. The most frequent departure day is Mon, with 33% of weekly flights leaving on this day.

When did momondo last update prices for flights from Lambert-St Louis Airport to Louisiana?

Prices for flights from Lambert-St Louis Airport to Louisiana refresh daily.

How many operators does momondo search for flights from Lambert-St Louis Airport to Louisiana?

As of December 2025, there are 5 operators available to choose from for flights from Lambert-St Louis Airport to Louisiana.

How old do you have to be to fly from Lambert-St Louis Airport to Louisiana?

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 Lambert-St Louis Airport to Louisiana.

What documentation or ID do you need to fly to Louisiana?

The travel and health documents you'll need for your trip to Louisiana may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Louisiana. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$72 Cheap Flights from St. Louis to Louisiana in 2025/26

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Find the cheapest flights from St. Louis to Louisiana

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:11 pm - 7:41 pm

STL

MSY

26h 30m1 stop

6:05 am - 6:51 am

MSY

STL

24h 46m2 stops

$152Multiple Airlines

Tue, Jan 13 - Tue, Jan 20

3:46 pm - 6:48 pm

STL

MSY

27h 02m1 stop

11:02 am - 11:33 pm

MSY

STL

12h 31m1 stop

$153Frontier

Sat, Jan 24 - Fri, Jan 30

5:11 pm - 2:44 pm

STL

MSY

21h 33m1 stop

7:00 am - 10:34 pm

MSY

STL

15h 34m1 stop

$155Multiple Airlines

Sun, Jan 11 - Wed, Jan 14

5:11 pm - 11:57 am

STL

MSY

18h 46m1 stop

7:00 am - 11:33 pm

MSY

STL

16h 33m1 stop

$160Multiple Airlines

Sun, Jan 18 - Wed, Jan 21

5:04 pm - 10:56 pm

STL

BTR

5h 52m1 stop

7:07 am - 3:04 pm

BTR

STL

7h 57m1 stop

$209American Airlines

Sat, Jan 17 - Sun, Jan 18

11:05 am - 8:59 pm

STL

BTR

9h 54m2 stops

7:07 am - 3:04 pm

BTR

STL

7h 57m1 stop

$214American Airlines

Sat, Jan 17 - Sun, Jan 18

5:00 pm - 10:23 pm

STL

SHV

5h 23m1 stop

8:45 am - 3:53 pm

SHV

STL

7h 08m1 stop

$249Delta

Sat, Mar 7 - Tue, Mar 10

9:59 am - 4:35 pm

STL

LFT

6h 36m1 stop

5:15 pm - 11:37 pm

LFT

STL

6h 22m1 stop

$269Delta

Fri, Jan 23 - Mon, Jan 26

4:35 pm - 9:17 pm

STL

SHV

4h 42m1 stop

4:10 pm - 10:00 pm

SHV

STL

5h 50m1 stop

$309United Airlines

Tue, Jan 6 - Sat, Jan 10

10:07 am - 3:58 pm

STL

BTR

5h 51m1 stop

5:15 pm - 10:00 pm

BTR

STL

4h 45m1 stop

$339United Airlines

Tue, Jan 6 - Sat, Jan 10

Frontier flights from St. Louis to Louisiana

Our best Frontier deals on St. Louis to Louisiana flight tickets

Frontier

Jan 24

STL3:46 pmLambert-St Louis

27h 02m

1 stop

MSY6:48 pmNew Orleans Louis Armstrong

Jan 30

MSY11:02 amNew Orleans Louis Armstrong

12h 31m

1 stop

STL11:33 pmLambert-St Louis

$153

Find similar

Frontier

Jan 31

STL8:22 pmLambert-St Louis

21h 38m

1 stop

MSY6:00 pmNew Orleans Louis Armstrong

Feb 8

MSY6:55 pmNew Orleans Louis Armstrong

11h 56m

1 stop

STL6:51 amLambert-St Louis

$179

Find similar

Frontier

Jan 17

STL8:32 pmLambert-St Louis

18h 06m

1 stop

MSY2:38 pmNew Orleans Louis Armstrong

Jan 19

MSY12:52 pmNew Orleans Louis Armstrong

9h 42m

1 stop

STL10:34 pmLambert-St Louis

$227

Find similar

Southwest flights from St. Louis to Louisiana

Our best Southwest deals on St. Louis to Louisiana flight tickets

Southwest

Jan 13

STL10:15 amLambert-St Louis

6h 40m

2 stops

MSY4:55 pmNew Orleans Louis Armstrong

Jan 20

MSY11:35 amNew Orleans Louis Armstrong

5h 30m

2 stops

STL5:05 pmLambert-St Louis

$333

Find similar

Southwest

Jan 13

STL10:15 amLambert-St Louis

5h 40m

1 stop

MSY3:55 pmNew Orleans Louis Armstrong

Jan 20

MSY7:45 amNew Orleans Louis Armstrong

1h 50m

STL9:35 amLambert-St Louis

$334

Find similar

Southwest

Jan 18

STL2:35 pmLambert-St Louis

7h 30m

1 stop

MSY10:05 pmNew Orleans Louis Armstrong

Jan 21

MSY7:45 amNew Orleans Louis Armstrong

1h 50m

STL9:35 amLambert-St Louis

$338

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Tue 1/13

5:11 pm-7:41 pm

1 stop26h 30m

New Orleans Louis Armstrong

Tue 1/20

6:05 am-6:51 am

2 stops24h 46m

$152

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Sat 1/24

3:46 pm-6:48 pm

1 stop27h 02m

New Orleans Louis Armstrong

Fri 1/30

11:02 am-11:33 pm

1 stop12h 31m

$153

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Sun 1/11

5:11 pm-2:44 pm

1 stop21h 33m

New Orleans Louis Armstrong

Wed 1/14

7:00 am-10:34 pm

1 stop15h 34m

$155

St. LouisNew Orleans

STL - MSY

STLMSY

Lambert-St Louis

Sun 1/18

5:11 pm-11:57 am

1 stop18h 46m

New Orleans Louis Armstrong

Wed 1/21

7:00 am-11:33 pm

1 stop16h 33m

$160

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Sat 1/17

5:04 pm-10:56 pm

1 stop5h 52m

Baton Rouge Ryan

Sun 1/18

7:07 am-3:04 pm

1 stop7h 57m

$209

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Sat 1/17

11:05 am-8:59 pm

2 stops9h 54m

Baton Rouge Ryan

Sun 1/18

7:07 am-3:04 pm

1 stop7h 57m

$214

St. LouisShreveport

STL - SHV

STLSHV

Lambert-St Louis

Sat 3/7

5:00 pm-10:23 pm

1 stop5h 23m

Shreveport

Tue 3/10

8:45 am-3:53 pm

1 stop7h 08m

$249

St. LouisLafayette

STL - LFT

STLLFT

Lambert-St Louis

Fri 1/23

9:59 am-4:35 pm

1 stop6h 36m

Lafayette Regional

Mon 1/26

5:15 pm-11:37 pm

1 stop6h 22m

$269

St. LouisShreveport

STL - SHV

STLSHV

Lambert-St Louis

Tue 1/6

4:35 pm-9:17 pm

1 stop4h 42m

Shreveport

Sat 1/10

4:10 pm-10:00 pm

1 stop5h 50m

$309

St. LouisBaton Rouge

STL - BTR

STLBTR

Lambert-St Louis

Tue 1/6

10:07 am-3:58 pm

1 stop5h 51m

Baton Rouge Ryan

Sat 1/10

5:15 pm-10:00 pm

1 stop4h 45m

$339

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Louisiana

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

Prices

Airlines

Other information

What is the cheapest month to fly to Louisiana?

In general, September is the cheapest month to fly from St. Louis to Louisiana. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $310. The month of June is another great option to travel to Louisiana, with average flight prices from St. Louis averaging around $352.

What is the cheapest day to depart on your flight to Louisiana?

According to our data, Tuesday is the cheapest day to fly to Louisiana from St. Louis. The lowest ticket price found for a Tuesday departure recently was $330. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Louisiana on Thursday is $454.

What is the cheapest time of day to depart on your flight to Louisiana?

The cheapest time of day to fly to Louisiana is at noon when flights can be purchased for as low as $378. In contrast, the most expensive time of day to depart to Louisiana is in the evening when prices are around $426.

What is the cheapest Lambert-St Louis to Louisiana flight route?

Fly from Lambert-St Louis to New Orleans Louis Armstrong for the best Lambert-St Louis - Louisiana flight prices

How far in advance should I book a flight to Louisiana?

You are more likely to see cheaper flights to Louisiana from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Louisiana for around $400 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Louisiana from St. Louis for as low as $327 on momondo.

What cabin class options are available on Lambert-St Louis to Louisiana flights?

There is only 1 cabin class available to choose from on Lambert-St Louis to Louisiana flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Louisiana flights?

You could potentially save up to 47% on your flight if you consider stops on a St. Louis to Louisiana flight.

Cheap St. Louis to Louisiana flight deals and tips

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

Best Price Found	$227
Fastest flight time	1h 45m
Direct flights	Every day
Airports in Louisiana	31 airports

The best one-way flight to Louisiana from St. Louis in the past 72 hours is $227. The best round-trip flight deal from St. Louis to Louisiana found on momondo in the last 72 hours is $435.

The fastest flight from St. Louis to Louisiana takes 1h 45m

Direct flights go from St. Louis to Louisiana every day.

There are 31 airports in Louisiana. From St. Louis there are direct flights to New Orleans Louis Armstrong (MSY).

Search flight deals

When did momondo last update prices for flights from Lambert-St Louis Airport to Louisiana?
Prices for flights from Lambert-St Louis Airport to Louisiana refresh daily.
How many operators does momondo search for flights from Lambert-St Louis Airport to Louisiana?
As of December 2025, there are 5 operators available to choose from for flights from Lambert-St Louis Airport to Louisiana.
How old do you have to be to fly from Lambert-St Louis Airport to Louisiana?
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 Lambert-St Louis Airport to Louisiana.
What documentation or ID do you need to fly to Louisiana?
The travel and health documents you'll need for your trip to Louisiana may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Louisiana. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from St. Louis to Louisiana?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from St. Louis to Louisiana is Boeing 737 MAX 8 (38.51% of total bookings). The next most popular plane models are Boeing 737-800 Passenger/BBJ2 (winglets) (31.08%), Boeing 737-700 Passenger/BBJ1 (winglets) (22.30%), and Airbus A321 (sharklets) (2.03%).

Best airlines flying from St. Louis to Louisiana

Compare and see reviews for airlines that fly from St. Louis to Louisiana with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $82	Free Cancellation	Rating 5.8 3,082 reviews	Search Frontier flights
Delta	PriceFrom $98	Free Cancellation	Rating 7.9 8,008 reviews	Search Delta flights
American Airlines	PriceFrom $189	Free Cancellation	Rating 7.2 11,049 reviews	Search American Airlines flights
United Airlines	PriceFrom $196	Free Cancellation	Rating 7.4 9,092 reviews	Search United Airlines flights
Southwest	PriceFrom $240	Free Cancellation	Rating 7.9 4,250 reviews	Search Southwest flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Louisiana. Millions of users trust and use momondo every year so you are in good hands.

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

Flights from St. Louis to Louisiana with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Louisiana from St. Louis.

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

Yes momondo offers price alerts on flights to Louisiana from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Louisiana trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Louisiana

Popular cities in Louisiana

Flights to New Yorkfrom $45

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Flights to Orlandofrom $40

Flights to San Franciscofrom $58

Flights to Las Vegasfrom $49

Flights to Washington, D.C.from $57

Flights to Bostonfrom $51

Flights to Atlantafrom $46

Flights to Dallasfrom $57

Flights to Seattlefrom $58

Cheap flights from St. Louis to Louisiana from $72

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Louisiana departing on 1/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Find the cheapest flights from St. Louis to Louisiana

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Frontier flights from St. Louis to Louisiana

Our best Frontier deals on St. Louis to Louisiana flight tickets

Southwest flights from St. Louis to Louisiana

Our best Southwest deals on St. Louis to Louisiana flight tickets

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See travel insights to Louisiana from

How to get the cheapest flight ticket from St. Louis to Louisiana

What is the cheapest month to fly to Louisiana?

What is the cheapest day to depart on your flight to Louisiana?

What is the cheapest time of day to depart on your flight to Louisiana?

The cheapest time of day to fly to Louisiana is at noon when flights can be purchased for as low as $378. In contrast, the most expensive time of day to depart to Louisiana is in the evening when prices are around $426.

What is the cheapest Lambert-St Louis to Louisiana flight route?

Fly from Lambert-St Louis to New Orleans Louis Armstrong for the best Lambert-St Louis - Louisiana flight prices

How far in advance should I book a flight to Louisiana?

What cabin class options are available on Lambert-St Louis to Louisiana flights?

There is only 1 cabin class available to choose from on Lambert-St Louis to Louisiana flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Louisiana flights?

You could potentially save up to 47% on your flight if you consider stops on a St. Louis to Louisiana flight.

What is the cheapest airline that flies from Lambert-St Louis to Louisiana?

Frontier, United Airlines, and American Airlines are the most popular carriers operating from Lambert-St Louis to Louisiana

What airlines fly to Louisiana?

How many flights depart from St. Louis to Louisiana on average per week?

The number of flights available between St. Louis and Louisiana is 6 per week as of December 2025. The most frequent departure day is Mon, with 33% of weekly flights leaving on this day.

Cheap St. Louis to Louisiana flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Louisiana

When did momondo last update prices for flights from Lambert-St Louis Airport to Louisiana?

How many operators does momondo search for flights from Lambert-St Louis Airport to Louisiana?

How old do you have to be to fly from Lambert-St Louis Airport to Louisiana?

What documentation or ID do you need to fly to Louisiana?

What is the most popular plane model from St. Louis to Louisiana?

Best airlines flying from St. Louis to Louisiana

Compare and see reviews for airlines that fly from St. Louis to Louisiana with momondo

Why use momondo?

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

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

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

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

An easier way to manage your Louisiana trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Louisiana

Popular cities in Louisiana

Popular flights according to clicks in the last 7 days on momondo