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C$38 Cheap Flights from Atlanta Hartsfield-Jackson (ATL) to St Louis (STL)

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Flight deals from Atlanta Hartsfield-Jackson to St Louis

Looking for a cheap last-minute deal or the best return flight from Atlanta Hartsfield-Jackson Airport to St Louis Airport? If you want to travel next month, return fares start from C$77. Find the lowest prices on one-way and return tickets right here.
St Louis.C$38 per passenger.Departing Wed., Jul. 29.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Atlanta Hartsfield-Jackson on Wed., Jul. 29, arriving in St Louis.Price includes taxes and charges.From C$38, select.
St Louis.C$39 per passenger.Departing Thu., Aug. 6.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Atlanta Hartsfield-Jackson on Thu., Aug. 6, arriving in St Louis.Price includes taxes and charges.From C$39, select.
St Louis.C$39 per passenger.Departing Sat., Jun. 20.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Atlanta Hartsfield-Jackson on Sat., Jun. 20, arriving in St Louis.Price includes taxes and charges.From C$39, select.
St Louis.C$51 per passenger.Departing Tue., Oct. 6.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Atlanta Hartsfield-Jackson on Tue., Oct. 6, arriving in St Louis.Price includes taxes and charges.From C$51, select.
St Louis.C$95 per passenger.Departing Thu., Sep. 17.One-way flight with Delta.Outbound direct flight with Delta departs from Atlanta Hartsfield-Jackson on Thu., Sep. 17, arriving in St Louis.Price includes taxes and charges.From C$95, select.
St Louis.C$133 per passenger.Departing Wed., Nov. 18.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Atlanta Hartsfield-Jackson on Wed., Nov. 18, arriving in St Louis.Price includes taxes and charges.From C$133, select.
St Louis.C$135 per passenger.Departing Wed., Nov. 18.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Atlanta Hartsfield-Jackson on Wed., Nov. 18, arriving in St Louis.Price includes taxes and charges.From C$135, select.
St Louis.C$242 per passenger.Departing Tue., Jan. 5.One-way flight with Delta.Outbound direct flight with Delta departs from Atlanta Hartsfield-Jackson on Tue., Jan. 5, arriving in St Louis.Price includes taxes and charges.From C$242, select.
St Louis.C$253 per passenger.Departing Sun., May 31.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Atlanta Hartsfield-Jackson on Sun., May 31, arriving in St Louis.Price includes taxes and charges.From C$253, select.
St Louis.C$271 per passenger.Departing Sun., May 31.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Atlanta Hartsfield-Jackson on Sun., May 31, arriving in St Louis.Price includes taxes and charges.From C$271, select.

Find the cheapest month to fly from Atlanta Hartsfield-Jackson to St Louis from C$38 one-way

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Atlanta Hartsfield-Jackson to St Louis flights are currently cheapest in July.
May
from C$253
Jun.
from C$39
Jul.
from C$38
Aug.
from C$39
Sep.
from C$95
Oct.
from C$51
Nov.
from C$133
Dec.
Find prices
Jan.
from C$242
Feb.
Find prices
Mar.
Find prices
Apr.
Find prices

Which airlines fly from Atlanta Hartsfield-Jackson to St Louis?

Atlanta Hartsfield-Jackson to St Louis: Alternative routes

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

St Louis

20km from central St Louis
ClosestCheapest
from C$38
Search flights

Belleville

32km from central St Louis
from C$223
Search flights

Sparta Community

69km from central St Louis
Search flights

Atlanta to St Louis: Flight information

The things to know before you go.
Cheapest flight foundC$38
Cheapest month to flyJuly
Average flight time1 hr, 42 mins
Most popular airlineSouthwest Airlines
Average flights per week341

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

The best price we found for a return flight from Atlanta Hartsfield-Jackson to St Louis is C$77. 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.
1 hour and 42 minutes is the average flight time from Atlanta Hartsfield-Jackson to St Louis.
Southwest Airlines, WestJet and Delta fly direct from Atlanta Hartsfield-Jackson to St Louis.
As of May 2026, there are 341 flights per week flying from Atlanta Hartsfield-Jackson to St Louis.
The cheapest month to fly from Atlanta Hartsfield-Jackson to St Louis is usually July.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Atlanta Hartsfield-Jackson Airport to St Louis Airport on Thursday, July 30, 2026.
Yes – the average flight time is 1 hour and 42 minutes.
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.
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.
Currently, Frontier Airlines offers the cheapest flight tickets to St Louis.

Traveling from Hartsfield-Jackson Atlanta International Airport (ATL) to Lambert-St. Louis International Airport (STL): what you need to know

  • A direct flight from Hartsfield-Jackson Atlanta International Airport to Lambert-St. Louis International Airport takes on average 1 hour 42 minutes. The timezone in St Louis is UTC-5, which makes it 1 hour behind Atlanta.

  • For the earliest departure, hop on the 05:00 flight from Hartsfield-Jackson Atlanta International Airport to Lambert-St. Louis International Airport. If you'd like to go later, the last flight is at 23:00. With 82 weekly flights from ATL to STL, you can select the timing that suits you best.

  • If you're traveling during a popular month like July, head to the airport even earlier. It's wise to arrive up to four hours before an international flight and two hours ahead of domestic departures. Security lines will be longer during vacation periods like spring break and summer.

  • Delta Air Lines is your ticket to exploring St Louis (and maybe even some other exciting corners of United States!). Look through the direct flights from Hartsfield-Jackson Atlanta International Airport to Lambert-St. Louis International Airport offered by this carrier.

  • If you want to break up your flight from Hartsfield-Jackson Atlanta International Airport to Lambert-St. Louis International Airport, add a stopover to your trip. Just deselect 'Direct flights only' and find a city that interests you. The most popular stopovers on the ATL - STL route are:

    • Pensacola International Airport

    • Nashville International Airport

    • Northwest Florida Beaches International Airport

How to find the cheapest flights from Hartsfield-Jackson Atlanta International Airport (ATL) to Lambert-St. Louis International Airport (STL)

  • The best price we've found for a one-way ticket from Hartsfield-Jackson Atlanta International Airport to Lambert-St. Louis International Airport is C$38. The cheapest price for a return flight is C$77. Keep in mind that fares can change due to availability at the time of booking.

  • To get your hands on cheap flight tickets from ATL to STL, reserve your journey 9 months ahead of the departure date.

  • Organize your trip for May. That's the cheapest month for flight tickets from Hartsfield-Jackson Atlanta International Airport to Lambert-St. Louis International Airport. If you're flexible on when you fly, use the 'Whole month' tool to see the lowest airfare across every month.

  • Snapping up a cheap ticket from ATL to STL couldn't be easier with Price Alerts. All you need to do is create one of these automatic alerts and we'll let you know as soon as the price has fallen.

  • Tailor your trip with filters. Select your ideal arrival and departure times, total journey duration and airlines. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest' flights from Hartsfield-Jackson Atlanta International Airport to Lambert-St. Louis International Airport.

Handy information about Hartsfield-Jackson Atlanta International Airport (ATL)

  • Traveling from central Atlanta to Hartsfield-Jackson Atlanta International Airport takes about 1 hour and 9 minutes on public transport. If you drive, ride-share or get a cab, you'll cover the 18 kilometres in 17 minutes or so, depending on traffic.

  • After an easy way to start to your break? Stay near ATL. Whether you're boarding an early flight from Hartsfield-Jackson Atlanta International Airport to Lambert-St. Louis International Airport or just don't want to be rushed, these stays are ideal:

Arriving at Lambert-St. Louis International Airport (STL)

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

  • From Lambert-St. Louis International Airport, St Louis is approximately 26 kilometres away. It takes around 21 minutes to get to the center driving.

  • Traveling by public transport takes around 36 minutes.

When to fly to Lambert-St. Louis International Airport (STL)

  • It's time to pick your dates for your flight from Hartsfield-Jackson Atlanta International Airport to Lambert-St. Louis International Airport. July is the most popular month to visit St Louis. If you want a more low-key vibe, go in April.

  • The warmest month in St Louis is July, with temperatures ranging between 17ºC and 33ºC. Lock in your flights from Hartsfield-Jackson Atlanta International Airport to Lambert-St. Louis International Airport in this month if this is the type of weather you like.

  • If you like cooler conditions, search for a cheap ticket from ATL to STL in January. Average temperatures are between -8ºC and 7ºC then.

More about St Louis

Complete your St Louis trip with hotels and a car rental

  • Once you've secured your cheap ticket to Lambert-St. Louis International Airport, explore our low prices and exclusive offers on hotels. You can also compare hundreds of car rental companies in one place to get the best car rental price for your St Louis vacation.

Plan the rest of your trip from Atlanta to St Louis

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