Cheap Flights from Atlanta to St Louis from $152

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Flight deals from Atlanta to St Louis Airport

Looking for a cheap last-minute deal or the best return flight from Atlanta to St Louis Airport? If you want to travel next month, return fares start from $152. Find the lowest prices on one-way and return tickets right here.

St Louis.$152 per passenger.Departing Wed, 15 Apr, returning Wed, 22 Apr.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Atlanta Hartsfield-Jackson on Wed, 15 Apr, arriving in St Louis.Inbound direct flight with Frontier Airlines departs from St Louis on Wed, 22 Apr, arriving in Atlanta Hartsfield-Jackson.Price includes taxes and charges.From $152, select.

St Louis.$162 per passenger.Departing Wed, 27 May, returning Mon, 8 Jun.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Atlanta Hartsfield-Jackson on Wed, 27 May, arriving in St Louis.Inbound direct flight with Frontier Airlines departs from St Louis on Mon, 8 Jun, arriving in Atlanta Hartsfield-Jackson.Price includes taxes and charges.From $162, select.

St Louis.$169 per passenger.Departing Wed, 20 May, returning Tue, 26 May.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Atlanta Hartsfield-Jackson on Wed, 20 May, arriving in St Louis.Inbound direct flight with Frontier Airlines departs from St Louis on Tue, 26 May, arriving in Atlanta Hartsfield-Jackson.Price includes taxes and charges.From $169, select.

St Louis.$276 per passenger.Departing Thu, 30 Apr, returning Sun, 3 May.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Atlanta Hartsfield-Jackson on Thu, 30 Apr, arriving in St Louis.Inbound indirect flight with Frontier Airlines, departs from St Louis on Sun, 3 May, arriving in Atlanta Hartsfield-Jackson.Price includes taxes and charges.From $276, select.

St Louis.$284 per passenger.Departing Mon, 8 Jun, returning Sun, 14 Jun.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Atlanta Hartsfield-Jackson on Mon, 8 Jun, arriving in St Louis.Inbound direct flight with Frontier Airlines departs from St Louis on Sun, 14 Jun, arriving in Atlanta Hartsfield-Jackson.Price includes taxes and charges.From $284, select.

St Louis.$361 per passenger.Departing Tue, 28 Jul, returning Thu, 30 Jul.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Atlanta Hartsfield-Jackson on Tue, 28 Jul, arriving in St Louis.Inbound direct flight with Frontier Airlines departs from St Louis on Thu, 30 Jul, arriving in Atlanta Hartsfield-Jackson.Price includes taxes and charges.From $361, select.

St Louis.$414 per passenger.Departing Tue, 31 Mar, returning Sun, 5 Apr.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Atlanta Hartsfield-Jackson on Tue, 31 Mar, arriving in St Louis.Inbound indirect flight with Frontier Airlines, departs from St Louis on Sun, 5 Apr, arriving in Atlanta Hartsfield-Jackson.Price includes taxes and charges.From $414, select.

St Louis.$431 per passenger.Departing Sat, 28 Mar, returning Sat, 28 Mar.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Atlanta Hartsfield-Jackson on Sat, 28 Mar, arriving in St Louis.Inbound indirect flight with Frontier Airlines, departs from St Louis on Sat, 28 Mar, arriving in Atlanta Hartsfield-Jackson.Price includes taxes and charges.From $431, select.

St Louis.$536 per passenger.Departing Thu, 30 Apr, returning Sun, 3 May.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Atlanta Hartsfield-Jackson on Thu, 30 Apr, arriving in St Louis.Inbound direct flight with Southwest Airlines departs from St Louis on Sun, 3 May, arriving in Atlanta Hartsfield-Jackson.Price includes taxes and charges.From $536, select.

St Louis.$605 per passenger.Departing Thu, 10 Sep, returning Thu, 17 Sep.Return flight with Delta.Outbound direct flight with Delta departs from Atlanta Hartsfield-Jackson on Thu, 10 Sep, arriving in St Louis.Inbound direct flight with Delta departs from St Louis on Thu, 17 Sep, arriving in Atlanta Hartsfield-Jackson.Price includes taxes and charges.From $605, select.

St Louis.$607 per passenger.Departing Sun, 8 Nov, returning Sun, 15 Nov.Return flight with Delta.Outbound direct flight with Delta departs from Atlanta Hartsfield-Jackson on Sun, 8 Nov, arriving in St Louis.Inbound direct flight with Delta departs from St Louis on Sun, 15 Nov, arriving in Atlanta Hartsfield-Jackson.Price includes taxes and charges.From $607, select.

St Louis.$1,094 per passenger.Departing Mon, 30 Mar, returning Mon, 30 Mar.Return flight with Delta.Outbound direct flight with Delta departs from Atlanta Hartsfield-Jackson on Mon, 30 Mar, arriving in St Louis.Inbound direct flight with Delta departs from St Louis on Mon, 30 Mar, arriving in Atlanta Hartsfield-Jackson.Price includes taxes and charges.From $1,094, select.

St Louis.$1,161 per passenger.Departing Tue, 31 Mar, returning Sun, 5 Apr.Return flight with Delta.Outbound direct flight with Delta departs from Atlanta Hartsfield-Jackson on Tue, 31 Mar, arriving in St Louis.Inbound direct flight with Delta departs from St Louis on Sun, 5 Apr, arriving in Atlanta Hartsfield-Jackson.Price includes taxes and charges.From $1,161, select.

Find the cheapest month to fly from Atlanta to St Louis

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

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Direct flights from Atlanta to St Louis

Atlanta to St Louis: Alternative routes

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

Atlanta to St Louis: Flight information

The things to know before you go.

Cheapest flight found	$76
Cheapest month to fly	April
Average flight time	1 hr, 43 mins
Most popular airline	Southwest Airlines
Average flights per week	316

Finding cheap flights from Atlanta to St Louis: Frequently asked questions

How much are return flights from Atlanta to St Louis?

The best price we found for a return flight from Atlanta to St Louis is $152. 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.

How long does it take to fly from Atlanta to St Louis?

1 hour and 43 minutes is the average flight time from Atlanta to St Louis.

Which airlines fly direct from Atlanta to St Louis?

Southwest Airlines, KLM and Delta fly direct from Atlanta to St Louis.

How many flights are there a week from Atlanta to St Louis?

As of March 2026, there are 316 flights per week flying from Atlanta to St Louis.

When is the cheapest time to fly from Atlanta to St Louis?

The cheapest month to fly from Atlanta to St Louis is usually April.

Which upcoming date is cheapest to fly from Atlanta to St Louis Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Atlanta to St Louis Airport on Wednesday, 15 April 2026.

Can I get a direct flight from Atlanta to St Louis Airport?

Yes – the average flight time is 1 hour and 43 minutes.

How can I find the best flight deal to St Louis?

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 St Louis 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.

When is the best time to book flights to St Louis?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to St Louis is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Atlanta to St Louis with?

The cheapest airline that flies to St Louis is Frontier Airlines .

Travelling from Atlanta to St Louis Lambert International Airport (STL): What you need to know

Start your trip at Atlanta Hartsfield-Jackson International Airport (ATL), the main airport in Atlanta. Look for flights from Atlanta to St Louis Lambert International Airport (STL) that depart from this terminal.
The average length of a direct Atlanta to St Louis Lambert International Airport flight is 1 hour 45 minutes.
St Louis is one hour behind Atlanta. St Louis Lambert International Airport is located in St Louis, which is in the UTC-6 timezone.
With 63 direct flights a week between the two airports, Atlanta Hartsfield-Jackson International Airport (ATL) to St Louis Lambert International Airport (STL) is the busiest route. Southwest Airlines operates the earliest flight at 7am. If you prefer to get more out of your day before taking off, the latest departure from ATL to STL is with Delta Air Lines at 11pm.
Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules worth sticking to. Make sure you're at the airport on time to catch your flight from Atlanta to STL.
If you're flying during a peak month like March, head to the airport even earlier. It's wise to arrive up to four hours before international flights and two hours ahead of domestic departures. Check-in and security lines will be longer during high seasons like Thanksgiving and spring break.

Airports in Atlanta

Atlanta Hartsfield-Jackson International Airport (ATL)

You can take a direct flight from Atlanta to St Louis Lambert International Airport (STL) leaving from Atlanta Hartsfield-Jackson International Airport (ATL).
At ATL, you'll find a good selection of airlines offering direct flights from Atlanta to St Louis Lambert International Airport, such as:
The top choice among passengers flying between ATL and STL is Delta.
With 79.5% of services landing as planned, Delta is the highest-rated carrier for punctuality on this route.
The journey from central Atlanta to ATL takes about 20 minutes on public transport. If you ride-share, drive or take a taxi, you'll cover the 16 kilometres in 20 minutes or so, depending on traffic.
Planning to catch an early flight from Atlanta to St Louis Lambert International Airport? Avoid the stress of rushing to the terminal (and enjoy a little extra shut-eye) by choosing one of these stays close to Atlanta Hartsfield-Jackson International Airport:
When it comes to Atlanta Hartsfield-Jackson International Airport's on-time performance, 77% of flights complete their journey on time.
ATL is located at 6000 N Terminal Parkway.

About St Louis Lambert International Airport (STL)

The last thing you want is a lengthy journey to your hotel if you're getting in late on a flight from Atlanta to St Louis Lambert International Airport. Get comfy at one of these accommodation options near STL instead:
Begin your adventure by picking up a St Louis Lambert International Airport rental car. Grab a set of wheels from Hertz, Budget or Alamo and experience the lesser-explored corners of St Louis and beyond.
Lock in the best rate by reserving your vehicle around one week ahead of your Atlanta to St Louis Lambert International Airport flight.
STL is located at 10701 Lambert International Blvd..

Getting from St Louis Lambert International Airport (STL) to central St Louis

Central St Louis is around 24 kilometres from St Louis Lambert International Airport and takes about 25 minutes to reach by car. Work out your options for getting into the city, whether that's with a taxi, car hire or ride-share.
It takes roughly 30 minutes when travelling by public transport.

How to find the cheapest flights from Atlanta to St Louis Lambert International Airport (STL)

The cheapest price we've found for a one-way ticket from Atlanta to St Louis Lambert International Airport is $76. For a return flight on this route, the best price is $152. Depending on the availability and when you book, these fares could change.
Don't leave things to the last minute. You're more likely to find cheap flights from Atlanta to STL if you book in advance. Airlines often offer some excellent early bird discounts.
The 'Whole month' tool shows you the cheapest Atlanta to St Louis Lambert International Airport tickets across the entire month. It's an easy way to snap up a bargain if your dates aren't set in stone.
There's no need to search every day to find out if prices have dropped when you create a Price Alert. We'll notify you when a better deal comes up on plane tickets from Atlanta to STL.
Save money on your flight from Atlanta to St Louis Lambert International Airport by using filters. Select your preferred departure time, duration and airlines, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Atlanta to St Louis Lambert International Airport (STL)

Think about the kind of experience you want when deciding the best time to fly. September is the quietest month to visit St Louis. October is when most people book flights from Atlanta to St Louis Lambert International Airport (STL), which may be perfect if you'd rather travel when it's busy.
The warmest month in St Louis is July, with temperatures ranging between 17ºC and 33ºC. Lock in your Atlanta to STL plane ticket then if that's your idea of comfortable weather.
Look for cheap tickets from Atlanta to St Louis Lambert International Airport in January if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between -8ºC and 7ºC.

More about St Louis

When it comes to looking for somewhere to rest your head, you'll find the top stays in St Louis right here. Explore these hotels once you've locked in your flight from Atlanta to St Louis Lambert International Airport:
The Gateway Arch and Saint Louis Arch are just the start of the leading attractions to add to your St Louis to-do list. Keep the momentum going by heading to Museum at the Gateway Arch.

Explore more of the United States

St Louis is always a good idea, but there are so many other corners of the United States you'll want to see. Around 257 kilometres east of St Louis, a visit to Evansville will keep your itinerary packed. Start with popular sights like Mesker Park Zoo, Riverfront Park and Evansville Zoological Society.
Around 177 kilometres west of St Louis, Columbia is another essential stop in the United States. Experience major highlights starting with Sentinel Park, Bur Oak Brewing Company and Museum of Art and Archaeology.