Cheap Flights from St Louis to Baton Rouge Ryan

Compare St Louis to Baton Rouge Ryan flight deals

Find the cheapest month or even day of the year to fly to Baton Rouge Ryan

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Flight deals from St Louis Airport to Baton Rouge Ryan Airport

Looking for a cheap last-minute deal or the best return flight from St Louis Airport to Baton Rouge Ryan Airport? If you want to travel next month, return fares start from $533. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from St Louis to Baton Rouge Ryan

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like St Louis to Baton Rouge Ryan flights are currently cheapest in May.

St Louis to Baton Rouge Ryan: Alternative routes

Compare routes from St Louis to Baton Rouge below. You may find an airport to fly into that's cheaper, faster, or easier than Baton Rouge Ryan.

St Louis to Baton Rouge: Flight information

The things to know before you go.
Cheapest flight found$779
Cheapest month to flyMay

Finding cheap flights from St Louis to Baton Rouge Ryan: Frequently asked questions

The best price we found for a return flight from St Louis to Baton Rouge Ryan is $533. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from St Louis to Baton Rouge Ryan. But we found flights with one or more stops from $533.
As of April 2026, there are no flights flying from St Louis to Baton Rouge Ryan.
The cheapest month to fly from St Louis to Baton Rouge Ryan is usually May.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Baton Rouge Ryan Airport on Saturday, 16 May 2026.
No airlines currently offer direct flights between St Louis Airport and Baton Rouge Ryan Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Baton Rouge Ryan but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Baton Rouge is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Delta offers the cheapest flight tickets to Baton Rouge Ryan.

Travelling from Lambert-St. Louis International Airport (STL) to Baton Rouge Metropolitan Airport (BTR): what you need to know

  • To ensure you get on your STL to BTR flight, leave plenty of time to check in and drop off your luggage. Arriving two hours ahead of international departures and an hour before domestic flights is the general travel rule.

  • Travelling during a peak time like July? Public holidays and other high seasons can lead to longer lines at check-in and security. Be extra cautious and get there up to four hours before an international flight and two hours before a domestic departure.

  • Consider adding a stopover when booking your ticket from Lambert-St. Louis International Airport to Baton Rouge Metropolitan Airport. Simply uncheck 'Direct flights only' to break up your trip, or visit a new city along the way. Here's where you can stop between STL and BTR:

    • Dallas/Fort Worth International Airport

    • George Bush Intercontinental Airport

    • Hartsfield-Jackson Atlanta International Airport

How to find the cheapest flights from Lambert-St. Louis International Airport (STL) to Baton Rouge Metropolitan Airport (BTR)

  • The lowest price we've seen for a one-way Lambert-St. Louis International Airport to Baton Rouge Metropolitan Airport flight is $779. A return ticket is currently $533. Depending on the availability and when you book, these fares could change.

  • To score cheap tickets from STL to BTR, book ahead. Airlines typically offer lower prices when flights are first released.

  • Getting cheap flights from Lambert-St. Louis International Airport to Baton Rouge Metropolitan Airport is more likely if you're flexible with your trip dates. Use the 'Whole month' tool to see the lowest prices across the month and bag a great deal.

  • Stay on top of deals for cheap flights from STL to BTR by setting up a Price Alert. We'll send you an email or notification through the app when a lower fare becomes available.

  • Discover the ideal flight for you with the help of the filters. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Lambert-St. Louis International Airport to Baton Rouge Metropolitan Airport, use the 'Sort by' tool. You can also filter results by departure and arrival times, airline, and journey duration.

Handy information about Lambert-St. Louis International Airport (STL)

Arriving at Baton Rouge Metropolitan Airport (BTR)

Getting from Baton Rouge Metropolitan Airport (BTR) to central Baton Rouge

  • The street address for BTR is 9430 Jackie Cochran Drive.

  • From Baton Rouge Metropolitan Airport, Baton Rouge is approximately 13 kilometres away. It takes around 10 minutes to reach the centre driving.

  • Getting to the centre on public transport takes roughly 55 minutes.

When to fly to Baton Rouge Metropolitan Airport (BTR)

  • The quietest month for a flight from Lambert-St. Louis International Airport to Baton Rouge Metropolitan Airport is February, while June is the busiest. Choose the ideal time to go to Baton Rouge based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • Book your flight from Lambert-St. Louis International Airport to Baton Rouge Metropolitan Airport for August if you'd like to visit Baton Rouge during its warmest month. Expect temperatures of between 22ºC and 39ºC.

  • January has average temperatures of between 1ºC and 19ºC. Look for cheap tickets from STL to BTR sometime then if you like travelling in cooler conditions.

Explore more of United States

  • Baton Rouge has loads to offer, but there are so many other parts of United States just waiting to be discovered. Around 402 kilometres west of Baton Rouge, a visit to Houston will fill your itinerary to the brim. Start with attractions like The Houston Museum of Natural Science, The Museum of Fine Arts, Houston, Beck Building and Hermann Park.

  • New Orleans is another must-experience destination in United States and is around 121 kilometres south-east of Baton Rouge. No trip is complete without visiting French Quarter, Jackson Square and Cafe Du Monde.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.