STL - ATL

$26 Find Cheap Flights from St. Louis to Atlanta - Compare and Save

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Everything you should know

Cheapest round-trip
$78
Typical prices: $137-$342
Frontier
Fri 12/14Fri 12/21
STL - ATL • Non-stop
Cheapest one-way
$26
Typical prices: $93-$277
Frontier
Fri 12/7
STL - ATL • Non-stop
Nonstop flights
Every day
You can fly direct with Delta, Southwest and Frontier. Average duration is 1h 37m
Direct flights
+1
Direct flights
+1
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 64% compared to booking last minute.
Insights
Insights
When to travel
August
Cheapest • 22% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Charlotte Douglas (CLT)
Cheapest • Avg $206 (round-trip)
Dallas/Fort Worth (DFW)
Shortest trip • 5h 06m (one-way)
Insights
Insights
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Flight Deals
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Expert advice
Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Mon, Dec 14 - Mon, Dec 21
Frontier Logo
12:02 pm - 2:46 pmSTL  Lambert-St Louis-ATL Atlanta Hartsfield-Jackson
1h 44mnonstop
Frontier Logo
9:57 am - 10:53 amATL  Atlanta Hartsfield-Jackson-STL Lambert-St Louis
1h 56mnonstop
$78Frontier
Thu, Nov 19 - Mon, Nov 23
Frontier Logo
7:24 pm - 10:04 pmSTL  Lambert-St Louis-ATL Atlanta Hartsfield-Jackson
1h 40mnonstop
Frontier Logo
4:47 pm - 5:40 pmATL  Atlanta Hartsfield-Jackson-STL Lambert-St Louis
1h 53mnonstop
$78Frontier
Fri, Nov 13 - Mon, Nov 16
Frontier Logo
6:34 pm - 9:24 pmSTL  Lambert-St Louis-ATL Atlanta Hartsfield-Jackson
1h 50mnonstop
Frontier Logo
4:49 pm - 5:42 pmATL  Atlanta Hartsfield-Jackson-STL Lambert-St Louis
1h 53mnonstop
$78Frontier
Wed, Dec 2 - Sat, Dec 5
Southwest Logo
10:15 am - 12:50 pmSTL  Lambert-St Louis-ATL Atlanta Hartsfield-Jackson
1h 35mnonstop
Southwest Logo
9:00 am - 9:50 amATL  Atlanta Hartsfield-Jackson-STL Lambert-St Louis
1h 50mnonstop
$143Southwest
Tue, Dec 15 - Mon, Jan 11
Southwest Logo
10:15 am - 12:50 pmSTL  Lambert-St Louis-ATL Atlanta Hartsfield-Jackson
1h 35mnonstop
Southwest Logo
5:25 pm - 6:10 pmATL  Atlanta Hartsfield-Jackson-STL Lambert-St Louis
1h 45mnonstop
$143Southwest
Fri, Jan 29 - Sun, Jan 31
Southwest Logo
10:40 am - 1:10 pmSTL  Lambert-St Louis-ATL Atlanta Hartsfield-Jackson
1h 30mnonstop
Southwest Logo
11:55 am - 12:40 pmATL  Atlanta Hartsfield-Jackson-STL Lambert-St Louis
1h 45mnonstop
$143Southwest
Wed, Nov 25 - Thu, Nov 26
Delta Logo
5:48 pm - 8:28 pmSTL  Lambert-St Louis-ATL Atlanta Hartsfield-Jackson
1h 40mnonstop
Delta Logo
12:40 pm - 1:23 pmATL  Atlanta Hartsfield-Jackson-STL Lambert-St Louis
1h 43mnonstop
$163Delta
Thu, Nov 26 - Thu, Dec 3
Delta Logo
3:15 pm - 5:49 pmSTL  Lambert-St Louis-ATL Atlanta Hartsfield-Jackson
1h 34mnonstop
Delta Logo
10:40 am - 11:29 amATL  Atlanta Hartsfield-Jackson-STL Lambert-St Louis
1h 49mnonstop
$163Delta
Mon, Dec 21 - Mon, Jan 18
American Airlines Logo
4:32 pm - 10:30 pmSTL  Lambert-St Louis-ATL Atlanta Hartsfield-Jackson
4h 58m1 stop Chicago O'Hare Intl
American Airlines Logo
5:40 pm - 10:06 pmATL  Atlanta Hartsfield-Jackson-STL Lambert-St Louis
5h 26m1 stop Washington, D.C. Reagan-National
$199American Airlines
Tue, Jan 12 - Thu, Jan 14
American Airlines Logo
11:04 am - 7:09 pmSTL  Lambert-St Louis-ATL Atlanta Hartsfield-Jackson
7h 05m1 stop Chicago O'Hare Intl
American Airlines Logo
9:04 am - 3:17 pmATL  Atlanta Hartsfield-Jackson-STL Lambert-St Louis
7h 13m1 stop Washington, D.C. Reagan-National
$199American Airlines
Booking Insights

Price, demand and travel trends for St. Louis to Atlanta flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from St. Louis to Atlanta?

Round-trip flights from St. Louis to Atlanta typically range from $137 to $342. The lowest price found in the past 5 days was $78, on Frontier.

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

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from St. Louis to Atlanta. It’s 14% cheaper than the average day, while Monday is the most expensive, with prices 32% higher.

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

•August is the cheapest month to fly from St. Louis to Atlanta at $176 round-trip.
•January ($279) and December ($277) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 58% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from St. Louis to Atlanta the cheapest?

Flights from St. Louis to Atlanta are cheapest 5 weeks before departure. Booking in this window typically costs about 64% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals
Expert advice

Expert advice for your flight from St. Louis to Atlanta

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on LATAM Airlines

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
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.

Read more
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.

Read more
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.

Read more

Key details for St. Louis to Atlanta flights

Low season

February

Cheapest flight

$26
Beat the crowds with an average 27% drop in travelers.
The most popular month to fly with an average 17% increase in travelers.
One-way flight from St. Louis to Atlanta

When to book flights from St. Louis to Atlanta

Are your dates flexible? Find out the best times to travel from St. Louis to Atlanta based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your St. Louis to Atlanta flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from St. Louis to Atlanta?

    These are the earliest and latest flight times available from St. Louis to Atlanta:

    • Earliest: departs at 6:00 am and lands at 7:37 am
    • Latest: departs at 8:50 pm and lands at 10:27 pm.

    The flight takes about 1h 37m.

  • What cabin classes can I book on flights from St. Louis to Atlanta?

    Two cabin classes are available on flights from St. Louis to Atlanta:

    • Economy Class
    • First Class

  • How long is a flight from St. Louis to Atlanta?

    A nonstop flight from St. Louis to Atlanta takes 1h 37m, covering 484 miles.

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

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a St. Louis to Atlanta flight?

    Round-trip flights from St. Louis to Atlanta range from $137 to $342, with an average of $225 over the past 12 months. Anything below $137 counts as a good deal.

  • How expensive are last-minute St. Louis to Atlanta flights?

    Last-minute fares on this route (booked within two weeks of departure) run 74% above the $225 route average. Book 5 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from St. Louis to Atlanta?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $206 round-trip via Charlotte Douglas (CLT), compared to $223 for nonstop.

  • What is the standard checked-bag allowance on flights from St. Louis to Atlanta?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $35–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from St. Louis to Atlanta?

    The Boeing 737-900 family is used most often on this route, operated mainly by Delta. Other aircraft seen on the route include Boeing 737-800 Passenger/BBJ2 (winglets) variants.

  • How are flight departures from St. Louis to Atlanta spread across the day?

    Morning is the busiest departure period on St. Louis to Atlanta flights, with 40% of flights leaving in that window. Afternoon departures account for 30%, evening flights for 30%, and night flights for 0%.

  • Which airlines offer Wi-Fi on St. Louis to Atlanta flights?

    Delta is the only airline on the St. Louis to Atlanta route offering in-flight Wi-Fi. Pricing depends on fare class.

  • How are flight prices from St. Louis to Atlanta looking right now?

    One-way fares from St. Louis to Atlanta are currently lower than usual. Average one-way flight prices are about $69, which is 58% below the typical average for this route.

  • What car rental options are available at Atlanta Hartsfield-Jackson Airport (ATL)?

    Atlanta Hartsfield-Jackson Airport (ATL) hosts 5 major car rental companies, with daily rates starting from around $15 for economy cars. Top options include:

    • Routes Car & Truck Rentals
    • Europcar
    • Hertz
    • Ace
    • Dollar

  • Which airports can I use when flying from St. Louis to Atlanta?

    Flights from St. Louis to Atlanta usually depart from Lambert-St Louis (STL) and arrive at Atlanta Hartsfield-Jackson (ATL).

  • Which airports do connecting flights from St. Louis to Atlanta pass through?

    One-stop flights from St. Louis to Atlanta most commonly connect through:

    • Orlando (MCO) - 54% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 21% of one-stop connections
    • Las Vegas Harry Reid Intl (LAS) - 8% of one-stop connections
    • Charlotte Douglas (CLT) - 4% of one-stop connections

  • Can I save money by using flexible dates for flights from St. Louis to Atlanta?

    Yes. Flexible dates can save you up to 35% on flights from St. Louis to Atlanta. Thursday is the cheapest departure day at $195 round-trip on average, while Monday is the most expensive at $298, a difference of $103.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from St. Louis to Atlanta?

    3 airlines operate flights between St. Louis and Atlanta. The airlines offering nonstop flights on this route include:

    • Delta
    • Southwest
    • Frontier

  • How much time can I save by choosing a different layover airport from St. Louis to Atlanta?

    Flying via Charlotte Douglas (CLT) gives the shortest average 1-stop total travel time at 4h 41m, compared with 5h 06m via Dallas/Fort Worth (DFW) and 5h 12m via Chicago O'Hare Intl (ORD).

  • What is the time difference between St. Louis and Atlanta?

    Atlanta is 1 hour ahead of St. Louis (Eastern Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Atlanta?

    Some of the most popular sights in Atlanta are Georgia Aquarium, Atlanta Stadium and State Farm Arena. These are among the most viewed places in Atlanta on KAYAK.

  • Which airlines offer extra legroom and free seat selection on St. Louis to Atlanta flights?

    Among airlines operating St. Louis to Atlanta flights:

    • Delta: offers extra legroom; offers free seat selection
    • Frontier: offers free seat selection
    • Southwest: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on St. Louis to Atlanta flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Delta: a cabin bag and a checked bag in Economy Class
    • Frontier: a cabin bag and a checked bag in Economy Class
    • Southwest: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

  • Which other cities can I visit during my trip to Atlanta from St. Louis?

    In addition to Atlanta, nearby cities include Alpharetta, Norcross and Marietta. Alpharetta is about 26.4 miles from Atlanta, Norcross is 20.1 miles away and Marietta is 15 miles northwest of Atlanta.

  • What is one way to get to downtown Atlanta from ATL?

    Shared Airport shuttles connect ATL with downtown Atlanta. The pickup area is at Aisle B, stalls 3 through 10.

Your guide to booking St. Louis to Atlanta flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Monday. On this route, Thursday flights average $195, about $103 less than Monday fares (35% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 5 weeks before you fly. On this route, that window historically saves about 64% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your St. Louis to Atlanta trip for August. Fares historically average $176 round-trip in that month - typically $103 less than the most expensive month, which is January (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Charlotte Douglas Airport (CLT) can be cheaper than flying direct. The cheapest layover option averages $206 round-trip on this route - about $17 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Atlanta Hartsfield-Jackson Airport.

    • AC Hotels by Marriott Atlanta Airport Gateway
    • La Quinta Inn & Suites by Wyndham Atlanta Airport North
    • Sonesta Atlanta Airport South
  • When booking a flight from St. Louis to Atlanta, expect to arrive at Hartsfield–Jackson Atlanta International Airport (ATL). Delta, Southwest and Frontier operate the route. ATL is the only airport in the region with scheduled commercial passenger service and is about 20 minutes south of downtown Atlanta. That makes it a convenient starting point for getting around the city.
  • You can use public transportation from downtown St. Louis to STL. If you want the shortest trip to the airport, take a taxi instead. Lambert Airport is 15 minutes from downtown St. Louis.
  • Flights from St. Louis to Atlanta are accessible for travelers with special needs. If you need a wheelchair, contact your airline in advance to arrange the free service at STL, where a trained staff member will escort and assist you through the airport process.
  • Consider flying Delta Airlines from St. Louis to Atlanta if you'd like the chance to enjoy lounge amenities at ATL along with its onboard amenities. ATL is the hub for Delta Airlines.

Prefer to fly direct from St. Louis to Atlanta?

 
Find which airlines fly direct from Lambert-St Louis Airport to Atlanta Hartsfield-Jackson Airport, which days they fly and book direct flights.

Direct departures

Lambert-St Louis to Atlanta Hartsfield-Jackson

Monday

Delta,Frontier,Southwest

Delta,Frontier, +1 more

Tuesday

Delta,Southwest

Delta,Southwest

Wednesday

Delta,Frontier,Southwest

Delta,Frontier, +1 more

Thursday

Delta,Frontier,Southwest

Delta,Frontier, +1 more

Friday

Delta,Frontier,Southwest

Delta,Frontier, +1 more

Saturday

Delta,Southwest,Frontier

Delta,Southwest, +1 more

Sunday

Delta,Southwest

Delta,Southwest

See more direct flights

Direct returns

Atlanta Hartsfield-Jackson to Lambert-St Louis

Monday

Delta,Frontier,Southwest

Delta,Frontier, +1 more

Tuesday

Delta,Southwest

Delta,Southwest

Wednesday

Delta,Frontier,Southwest

Delta,Frontier, +1 more

Thursday

Delta,Frontier,Southwest

Delta,Frontier, +1 more

Friday

Delta,Frontier,Southwest

Delta,Frontier, +1 more

Saturday

Delta,Southwest,Frontier

Delta,Southwest, +1 more

Sunday

Delta,Southwest

Delta,Southwest

See more direct flights

More options for your flight from St. Louis to Atlanta

Complete your trip to Atlanta with a hotel stay or car rental

Car rentals in Atlanta
Hotels in Atlanta
Vacations in Atlanta