
$28 Cheap flight deals from Atlanta (ATL) to O'Fallon (STL)
Earn rewards on top of your airline miles with Orbitz Rewards
Many airlines offer flexible change policies
Sign up to receive text alerts about your trip
This Weekend's Flight Deals from Atlanta to O'Fallon
This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Airfares from $28 One Way, $57 Round Trip from Atlanta to O'Fallon
Prices starting at $57 for return flights and $28 for one-way flights to O'Fallon were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
O'Fallon economy flight packages

The Westin St. Louis
May 8 - May 12
Atlanta (ATL) to St. Louis (STL)
St. Louis (STL) to Atlanta (ATL)
Reviewed on Dec 8, 2025

The Cheshire
May 8 - May 12
Atlanta (ATL) to St. Louis (STL)
St. Louis (STL) to Atlanta (ATL)
Reviewed on Sep 2, 2025

Hampton Inn & Suites Clayton/St. Louis-Galleria Area
May 15 - May 17
Atlanta (ATL) to St. Louis (STL)
Reviewed on Apr 20, 2022
More About Flying To O'Fallon from Atlanta
Route Information for Flights from Atlanta to O'Fallon
Origin Airport IATA Code | ATL |
|---|---|
Destination Airport IATA Code | STL |
Distance | |
Direct Flight Airlines | |
Earliest Flight Arrival | |
Latest Flight Arrival |
Atlanta to O'Fallon
The perfect trip begins with Orbitz. From booking your flights from Atlanta to O'Fallon to finding the best hotels, Orbitz has got it covered.
Stress-free Searching
With an easy to use system, Orbitz takes the stress and expense out of travel. Not only does Orbitz match your Atlanta to O'Fallon flights to your ideal hotel, the Display Matrix shows your deals and discounts, including free nights and other savings.
Be One Step Ahead
Need to know what is going on at the airport before you get there? With Orbitz’s free alerts service, you can quickly find out about any booking changes, or flight from Atlanta to O'Fallon disruptions, saving you hours of wasted time. And if you are being picked up at the airport after your Atlanta to O'Fallon flights, have alerts sent straight to your contact’s mobile phone or email.
Cutting-Edge Mobile Tools
Find the best price on flights from Atlanta to O'Fallon with Orbitz’s mobile apps for iPhone and Android. Use m.orbitz.com on your mobile browser to check your gate, baggage allowance and delays, or find exclusive deals on hotels only available to mobile users.
We Work, you Rest and Play
Not only does booking with us ensure guaranteed low prices, but Orbitz does the hard work, leaving you to relax. Just tell us what you want, from Atlanta to O'Fallon flights, to great deals on hotels and car rental, and activities and tours, and we will do all the rest.
Flights from Atlanta
- Atlanta to New York
- Atlanta to Chicago
- Atlanta to Las Vegas
- Atlanta to Houston
- Atlanta to Orlando
- Atlanta to Dallas
- Atlanta to Newark
- Atlanta to Washington
- Atlanta to Fort Lauderdale
- Atlanta to Toronto
- Atlanta to Los Angeles
- Atlanta to London
- Atlanta to Phoenix
- Atlanta to Detroit
- Atlanta to San Francisco
- Atlanta to Hartford
- Atlanta to Kansas City
- Atlanta to Killeen
- Atlanta to Columbus
- Atlanta to Moscow
O'Fallon Airports
Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.
Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.
Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.
