A large, historic building with a tall spire, surrounded by a well-maintained park and a river.

Cheap Flights from St. Louis (STL) to Baton Rouge (BTR)

Popular airlines from Lambert-St. Louis International Airport (STL) to Baton Rouge Metropolitan Airport (BTR)

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Find the cheapest month to fly from St. Louis (STL) to Baton Rouge (BTR)

February is typically the cheapest month to fly

From £186 - £413 per traveller.

Frequently asked questions

How much does a flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan) cost?
You can find one-way and return flights from STL to BTR with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when STL to BTR ticket fares go up or down.
What is the cheapest month to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan)?
August is typically the cheapest month to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan), with average return fares around £215. August often sees lower prices as it's outside the peak summer travel season, leading to reduced demand. Other cheap months to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan) include February and May.
Which airlines fly direct from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan)?
Enter STL to BTR and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan)?
Delta is one of the cheapest airlines offering connecting return flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan), with prices starting from around £199 for flights that can be booked for departure within the next year. These flights typically include a layover in LaGuardia (LGA). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan)?
To find a cheap flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan)?
The best time to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan) is typically August or May. These months offer a great balance, with average return flight prices around £215. While these months are among the cheapest, they also tend to be popular times to travel, meaning you'll likely find plenty of flight options to suit your schedule. If you're flexible, flying in August or May can give you both good fares and excellent flight availability.
How many flights per day from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan)?
There are approximately 27 connecting flights per day from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan). Some common connection points include O'Hare Intl. (ORD), George Bush Intercontinental (IAH), and Dallas-Fort Worth Intl. (DFW).
What is the earliest flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan)?
The earliest flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan) typically departs around 5:00 AM. This service is usually operated by American Airlines. This is a seasonal service active in November. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan)?
You'll typically find the most flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan) on a Friday, with around 21 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include United, American Airlines, and Delta. Flight schedules are fairly consistent throughout the week, with Friday offering slightly more options compared to other days.
What are the most popular departure times for flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan)?
The most popular departure times for flights from Lambert-St. Louis Intl. (STL) to Baton Rouge Metropolitan (BTR) are in the morning, between 9am and 12pm. Many major carriers, including American Airlines, United and Delta, offer flights during this window. Many travellers prefer this time as it allows for an early start to their journey, getting them to their destination with plenty of time left in the day.
How long does it take to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan)?
There are no nonstop flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan). Flights with one stop typically take around 6 hours 48 minutes, covering a distance of about 916 kilometers. If your journey involves two or more stops, you can expect the travel time to be longer, usually around 9 hours 30 minutes. Keep in mind that actual flight times can vary due to factors like layover duration, routing, and weather conditions.
Can you fly business or first class from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan)?
You can fly business class or first class between STL and BTR. You can fly business class with Delta.First class cabins are available on Delta, United, and American Airlines.
How do I earn miles on a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan) flight with Expedia?
It's easy to earn miles on a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Baton Rouge, LA (BTR) from St. Louis, MO (STL)?
If you're planning to travel to Baton Rouge from Lambert-St. Louis Intl. (STL), you can fly directly into Baton Rouge Metropolitan (BTR) which offers domestic flights and connections. Some flights may connect through major hubs like O'Hare Intl. (ORD), LaGuardia (LGA), or Miami Intl. (MIA) before reaching Baton Rouge. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan) at the last minute?
Typically, booking a last minute flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan) flight and hotel package?
Securing a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan)?
If you booked your St. Louis, MO (STL-Lambert-St. Louis Intl.) to Baton Rouge, LA (BTR-Baton Rouge Metropolitan) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Baton Rouge Metropolitan
Distance
910 km

Book with confidence

Compare flights from St. Louis to Baton Rouge easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from St. Louis to Baton Rouge. Operating between them flights per day, airlines cover the route. And fly direct, getting you to Baton Rouge Metropolitan in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Lambert-St. Louis Intl. to Baton Rouge Metropolitan.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Lambert-St. Louis Intl. (STL) to Baton Rouge Metropolitan (BTR)

The easiest way to view the best deals on flights from St. Louis to Baton Rouge today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Lambert-St. Louis Intl. to Baton Rouge Metropolitan start at just and range up to .  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near St. Louis and Baton Rouge
  • booking your flight during , the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your St. Louis to Baton Rouge flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Lambert-St. Louis Intl. to Baton Rouge Metropolitan for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from St. Louis to Baton Rouge easily and book with confidence

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