ATL - STL

$27 Find Cheap Flights from Atlanta to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Atlanta to St. Louis departing on 2/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Atlanta to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Atlanta to St. Louis, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$58
Overall average: $278
Frontier
Mon 2/9Mon 2/23
ATL - STL • Non-stop
Cheapest non-stop
$58
Typical prices: $255-$489
Frontier
Wed 2/4Wed 2/11
ATL - STL • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Southwest offers two free checked bags on this route.
Avoid ATL parking due to construction delays.
Expert advice
Expert advice
Expert advice
Expert advice
Video guide: How to find cheap flights to St. Louis
Watch video
Watch video
Watch video
Watch video
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 38% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
July
Cheapest • 20% price drop
November
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Atlanta to St. Louis (ATL-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Atlanta to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Atlanta to St. Louis

Mon, Feb 9 - Mon, Feb 23
Frontier Logo
6:00 am - 6:51 am
ATL
-
STL
1h 51mnonstop
Frontier Logo
8:22 pm - 11:02 pm
STL
-
ATL
1h 40mnonstop
$58Frontier
Sat, Feb 14 - Mon, Feb 16
Frontier Logo
6:00 am - 6:51 am
ATL
-
STL
1h 51mnonstop
Frontier Logo
8:22 pm - 11:02 pm
STL
-
ATL
1h 40mnonstop
$63Frontier
Tue, Mar 24 - Tue, Mar 31
Frontier Logo
9:41 am - 10:32 am
ATL
-
STL
1h 51mnonstop
Frontier Logo
11:27 am - 2:07 pm
STL
-
ATL
1h 40mnonstop
$65Frontier
Tue, Mar 24 - Tue, Mar 31
Frontier Logo
9:41 am - 10:32 am
ATL
-
STL
1h 51mnonstop
Frontier Logo
11:27 am - 2:07 pm
STL
-
ATL
1h 40mnonstop
$66Frontier
Wed, Apr 22 - Sat, Apr 25
Frontier Logo
6:00 am - 6:50 am
ATL
-
STL
1h 50mnonstop
Frontier Logo
8:13 pm - 10:59 pm
STL
-
ATL
1h 46mnonstop
$76Frontier
Wed, Feb 11 - Fri, Feb 13
Frontier Logo
6:00 am - 6:51 am
ATL
-
STL
1h 51mnonstop
Frontier Logo
8:20 pm - 11:00 pm
STL
-
ATL
1h 40mnonstop
$78Frontier
Fri, Feb 13 - Mon, Feb 16
Frontier Logo
6:00 am - 6:51 am
ATL
-
STL
1h 51mnonstop
Frontier Logo
8:22 pm - 11:02 pm
STL
-
ATL
1h 40mnonstop
$82Frontier
Fri, Mar 20 - Mon, Mar 23
Frontier Logo
12:43 pm - 1:34 pm
ATL
-
STL
1h 51mnonstop
Frontier Logo
12:16 pm - 2:56 pm
STL
-
ATL
1h 40mnonstop
$87Frontier
Fri, May 1 - Sun, May 3
Frontier Logo
6:00 am - 6:50 am
ATL
-
STL
1h 50mnonstop
Frontier Logo
11:21 am - 2:07 pm
STL
-
ATL
1h 46mnonstop
$88Frontier
Wed, Feb 25 - Sat, Feb 28
Frontier Logo
6:00 am - 6:51 am
ATL
-
STL
1h 51mnonstop
Frontier Logo
12:36 pm - 9:46 pm
STL
-
ATL
8h 10m
1 stop
$92Frontier
Booking Insights

KAYAK's insights & trends for Atlanta to St. Louis flights

Get data-powered insights and trends into flights from Atlanta to St. Louis to help you find the cheapest flights, the best time to fly and much more.

Find cheap flights to St. Louis
Find cheap flights to St. Louis

Planning a trip from Atlanta to St. Louis? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

What’s the cheapest day of the week to fly from Atlanta to St. Louis?

The average price of all round-trip flights from Atlanta to St. Louis clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to St. Louis on a Thursday and more expensive on a Monday. On your return trip to Atlanta, you should consider flying back on a Thursday, and avoid Wednesdays for better deals.

What is the cheapest month to fly from Atlanta to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Atlanta to St. Louis, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Atlanta to St. Louis is July, where tickets cost $197 (return) on average. On the other hand, the most expensive months are March and May, where the average cost of round-trip tickets is $300 and $297 respectively.

Can I save money by flying with a layover from Atlanta to St. Louis?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $233 on average.

How far in advance should I book a flight from Atlanta to St. Louis?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Atlanta to St. Louis, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Atlanta to St. Louis, you should book around 2 weeks before departure, which saves you about 38% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Expert advice

Expert advice for your flight from Atlanta to St. Louis

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Delta

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Blane Bachelor

Blane Bachelor

Expert on Southwest and ATL

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Yulia Denisyuk

Yulia Denisyuk

Expert on STL

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Good to know

Low seasonApril
Cheapest flight$27
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Atlanta to St. Louis

When to book flights from Atlanta to St. Louis

Are your dates flexible? Find out the best times to travel from Atlanta to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Atlanta to St. Louis

  • What are the transportation options from St. Louis Lambert International Airport (STL)?

    ​​​​​​​Greyhound offers their bus route number 30, that can take passengers from the airport to the downtown area and around 30min. There is also light rail service operated by Metro St. Louis that makes the same trip in about 30min. Passengers wishing to travel in a taxi from the airport should expect a ride time to downtown St. Louis of around 19min.

  • Which hotels are near St. Louis Lambert International Airport?

    ​​​​​​​Two of the best choices for hotels that sit right adjacent to the terminal buildings of the airport just across Interstate 70 are the Marriott St. Louis Airport and the Drury Inn & Suites St. Louis Airport, both of which offer a complimentary shuttle service between the airport terminal buildings and their properties.

  • Where are the car rental desks at St. Louis Lambert International Airport?

    ​​​​​​​All of the rental car companies that operate at this airport do so in offsite locations, and you can access their locations utilizing the complimentary shuttle buses operated by the airport. The pickup locations for the shuttle buses are at exit 17 of terminal one and exit 12 of terminal two.

  • Where will I meet my ride at St. Louis Lambert International Airport?

    ​​​​​​​The dedicated pickup points for rideshare vehicles at this airport are at Exit 6 of Terminal One on the Ticketing Level and Exit 15 of Terminal Two.

  • What is the cheapest flight from Atlanta to St. Louis?

    In the last 3 days, the lowest price for a flight from Atlanta to St. Louis was $27 for a one-way ticket and $58 for a round-trip.

  • Do I need a passport to fly between Atlanta and St. Louis?

    No

  • Which airports will I be using when flying from Atlanta to St. Louis?

    When flying out of Atlanta you will be using Atlanta Hartsfield-Jackson. You will be landing at St. Louis, also known as Lambert-St Louis.

  • Which airlines offer Wi-Fi service onboard planes from Atlanta to St. Louis?

    Delta, JetBlue, American Airlines, Alaska Airlines, and Aeromexico offer inflight Wi-Fi service on the Atlanta to St. Louis flight route.

  • Which aircraft models fly most regularly from Atlanta to St. Louis?

    The Boeing 737-900 is the aircraft model that flies most regularly on the Atlanta to St. Louis flight route.

  • Which airline alliances offer flights from Atlanta to St. Louis?

    oneworld, and SkyTeam are the airline alliances operating flights between Atlanta and St. Louis, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Atlanta to St. Louis?

    There are nonstop flights from Atlanta to St. Louis on a daily basis.

  • Which is the best airline for flights from Atlanta to St. Louis, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Atlanta to St. Louis are Southwest and Delta. With an average price for the route of $297 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $278 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Atlanta to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Atlanta to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Atlanta to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Atlanta is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Atlanta to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Atlanta with another airline. Booking your flights between Atlanta and STL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Atlanta to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Atlanta up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Atlanta to St. Louis

  • Looking for a cheap flight? 25% of our users found flights on this route for $151 or less one-way and $234 or less round-trip.
  • If you'd like to get to Atlanta Hartsfield-Jackson International Airport (ATL) without having to do the driving yourself, take the MARTA Gold or Red line trains that make the trip from several areas in the center of Atlanta to the airport in around 15min. Greyhound also offers bus service from the Garnett Station in downtown Atlanta to the airport in around 15min.
  • Passengers driving to Atlanta Hartsfield-Jackson International Airport will find that this airport offers a number of different parking choices, including both covered and uncovered parking options. One of the most budget-friendly choices for parking are the economy parking sections that travelers will find at the north and south end of the airport property adjacent to the parking decks. Passengers can also book parking online at least 24 hours before their flight and guarantee an available parking spot upon their arrival.
  • If you are taking a pet or a service animal through the Atlanta Hartsfield-Jackson International Airport, this airport offers pet relief areas both inside and outside of the terminal buildings. The indoor areas have locations adjacent to gates C19, E14, F7, T7, A10, and B33.
  • If the kids will be coming through the Atlanta Hartsfield-Jackson International Airport, this airport offers two different play areas for kids to let them burn off some energy before a long flight.
  • ​​​​​​​If you looking for a comfortable place to wait for a flight at the airport, a good choice at the Atlanta Hartsfield-Jackson International Airport is The Club ATL lounge on Concourse F past the security checkpoints. In addition to dining and entertainment options, this lounge also offers a substantial choice of different seating options.

Prefer to fly direct from Atlanta to St. Louis?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Atlanta Hartsfield-Jackson to Lambert-St Louis.
Find which airlines fly direct from Atlanta Hartsfield-Jackson Airport to Lambert-St Louis Airport, which days they fly and book direct flights.

Direct departures

Atlanta Hartsfield-Jackson to Lambert-St Louis

Monday

Delta, Frontier, Southwest

Delta, Frontier, +1 more

Tuesday

Delta, Southwest, Frontier

Delta, Southwest, +1 more

Wednesday

Delta, Frontier, Southwest

Delta, Frontier, +1 more

Thursday

Delta, Southwest, Frontier

Delta, Southwest, +1 more

Friday

Delta, Frontier, Southwest

Delta, Frontier, +1 more

Saturday

Delta, Frontier, Southwest

Delta, Frontier, +1 more

Sunday

Delta, Southwest, Frontier

Delta, Southwest, +1 more

See more direct flights

Direct returns

Lambert-St Louis to Atlanta Hartsfield-Jackson

Monday

Delta, Frontier, Southwest

Delta, Frontier, +1 more

Tuesday

Delta, Southwest, Frontier

Delta, Southwest, +1 more

Wednesday

Delta, Frontier, Southwest

Delta, Frontier, +1 more

Thursday

Delta, Southwest, Frontier

Delta, Southwest, +1 more

Friday

Delta, Frontier, Southwest

Delta, Frontier, +1 more

Saturday

Delta, Frontier, Southwest

Delta, Frontier, +1 more

Sunday

Delta, Southwest, Frontier

Delta, Southwest, +1 more

See more direct flights

Reviews of the top 4 airlines serving from Atlanta to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Atlanta to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Atlanta to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4267 reviews
7.0Food
8.1Boarding
7.5Entertainment
8.0Comfort
8.6Crew
Airline reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

10.0 ExcellentAnonymous, Jan 2026
PHX - MDW
Read more Southwest reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

Everything went smoothly and we even arrived a little bit early.

Great vacation. Can't wait till next year for another one.

Great flight but super high price. Glad it was a business trip and not personal

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

The seats were comfortable, and the boarding process was pretty smooth.

3 hour delay. Had to change plans and was still delayed.

The staff was very friendly, professional, and courteous. The overall flight was a great experience.

The crew canceled the complementary snack and drink in anticipation of turbulence that never materialized. I was counting on the drink (water) to take the the doses of medication - prescribed for my heart condition - that were due during the flight. Since no snack or meal was served on this flight, I cannot rate the food quality. Otherwise, this flight was excellent.

Departure was delayed more than 1/2 hour while we waited for luggage (only) transfer from another flight/plane. Once approved for takeoff, the flight was excellent.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

The flight was delayed and oversold. I volunteered to give up my seat for compensation. Thinking I could get a good night's sleep instead of arriving home at 2 am. It took over an hour to get the new reservation confirmed, three different gate attendants, and two red coats. It took even longer to confirm the overnight hotel, and when I arrived, the line was 45 minutes long, with two people checking in, and at least 15 people slowly, very slowly—no food except frozen convenience food, no coupon for food from airlines. Slept, headed back to the airport, and that flight had an equipment change and a gate change just as they were about to board. It took an additional hour to board as they cleaned the plane from storage.

I upgraded to first. Quick and easy boarding. Comfortable seat with power and a nice IPA.

Staff was great! Kind and cordial! Middle seat row 28 seat B has a hump in it. Trays were getting stuck when putting down and up. Good flight

It was good because we traveled without luggage, carry on only.

I usually get upgraded so my experience is usually amazing. I did not get upgraded this time - which was fine - but the wifi had issues, the monitors were going in & out, & (though not Delta's fault) one of the gentlemen next to me desperately needed a shower.

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

Late delayed flight delays boarding and delays leaving and delays on arrival too. Cramped plane no room no food.

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

Crew was helpful and cheerful especially when they had no refreshments to work with. The plane was never serviced and had nothing but limited water and coffee onboard. For the price point, a concern of services.

Flight was smooth, quick and felt safe. The 2 delays not happening would have been better but I guess that happens in the airline industry

Flight was canceled. I asked to be rerouted to OKC and then took an Uber.

AA did not allow to board a flight because my connecting flight from DFW had been canceled. I got on another flight to another city. No service on the plane and I did not use their entertainment system.

On time on a day with lots of weather cancellations on other flights. Thank you for getting me home during a winter storm!

Don't change gate multiple times make people run across the airport. Announce delays in a timely manner. Have maintenance crew ready. Don't delay and keep passengers on the plane for 3 hrs. on tarmac.

The plane was experiencing problems with the HVAC system, it was very cold in the front of the plane and very hot in the back.

The attendants were kind and helpful. A sugar-free drink would have been very welcome.

Pilot navigated severe weather/snow storm with skill. Described his intentions clearly

one crew said "he" didn't serve double alcohol drinks for travelers in exit rows. crew on prior flight did. Is this a AA rule, and the prior crew was being nice? Also, I think we deserve more than a 25% refund for losing first class seats when rescheduling a flight due to weather

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

It didn’t happen. I booked it and then was told it wasn’t available and then forced to pay far higher prices for a worse option

A 630departure flight Delayed 6hours! They changed my gate, I moved to the new gate. Had our flight on the screen for 12noon departure. I go get above to eat, check screen again and the flight was gone, no notice no announcement, nothing!! They sent my bag on the flight I wasn’t on, got it back to me 3days later. Thank goodness they did refund my money but I will NEVER fly them again.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

Plane and crew on board were fine. Everything else was terrible.

The third party booking with cheapflightsfares was awful. Kayak should NOT partner with them. They sold me a bundle including seat selection and carry-on, but did not book the carry-ons with Frontier, so I’m out of pocket for $414 more while I await resolution.

Everything you need to know for your flight from Atlanta to St. Louis

Information on your arrival and departure airports