Popular airlines from Hartsfield-Jackson Atlanta International Airport (ATL) to Decatur, IL (DEC)
UnitedUnited
- Plan, book, fly with confidence
- Be in the knowGet alerts if flight prices drop or rise*
- Book smarterSave up to 30% on select hotels after you book a flight*
Cheap Flights from Atlanta to Decatur (ATL-DEC)
Prices were available within the past 7 days and start at $419 for one-way flights and $229 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Origin airport | Hartsfield-Jackson Atlanta Intl. |
Destination airport | Decatur |
Airlines serving | United |
Roundtrip price | $229 |
Distance | 493 mi |
Atlanta to Decatur Flights
The cheapest times to fly from Atlanta to Decatur
On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Atlanta to Decatur are during the month of May. You can find some of the cheapest flights from Atlanta to Decatur with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Atlanta to Decatur
Sunday is one of the best days to book for cheap flights from Atlanta to Decatur: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.
How to find cheap round-trip tickets from Atlanta to Decatur
Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Atlanta to Decatur in 2025. You can also book with separate airlines for your outbound and return journeys, from $419 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.
Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Atlanta to Decatur flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.
You could also save big by booking one of Expedia's vacation packages. Bundling together your Atlanta to Decatur airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.
*Terms apply.
Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.
Frequently asked questions
Explore a world of travel with Expedia
Flights
- Virgin Atlantic
- British Airways
- United
- Frontier Airlines
- Lufthansa
- Spirit Airlines
- Alaska Airlines
- Air Canada
- Delta
- KLM
- Qatar Airways
- Aeromexico
- JetBlue Airways
- Air France
- American Airlines
- Turkish Airlines
- Spirit Airlines Atlanta (ATL) to Baltimore (BWI) flights
- Frontier Airlines Atlanta (ATL) to Newark Liberty Intl. Airport (EWR) flights
- Frontier Airlines Atlanta (ATL) to Miami (MIA) flights
- American Airlines Atlanta (ATL) to Montego Bay (MBJ) flights
- Spirit Airlines Atlanta (ATL) to New Orleans (MSY) flights
- JetBlue Airways Atlanta (ATL) to Punta Cana (PUJ) flights
- Frontier Airlines Atlanta (ATL) to New York (LGA) flights
- Frontier Airlines Atlanta (ATL) to Denver (DEN) flights
- JetBlue Airways Atlanta (ATL) to New York (JFK) flights
- Alaska Airlines Atlanta (ATL) to Los Angeles (LAX) flights
- Flights from Columbus Metropolitan
- Flights from Huntsville Intl.
- Flights from DeKalb-Peachtree
- Flights from Fulton County
- Flights from Montgomery Regional
- Flights from Augusta Regional
- Flights from Southwest Georgia Regional
- Flights from Chattanooga Metropolitan
- Flights from Middle Georgia Regional
- Flights from Birmingham Intl.
- Flights from Chicago (ORD) to Atlanta (ATL)
- Flights from Philadelphia (PHL) to Atlanta (ATL)
- Flights from Newark Liberty Intl. Airport (EWR) to Atlanta (ATL)
- Flights from Dallas (DFW) to Atlanta (ATL)
- Flights from Los Angeles (LAX) to Atlanta (ATL)
- Flights from New York (NYC) to Atlanta (ATL)
- Flights from Atlanta (ATL) to Chicago (MDW)
- Flights from Atlanta (ATL) to Newark Liberty Intl. Airport (EWR)
- Flights from Houston (IAH) to Decatur (DEC)
- Flights from Milwaukee (MKE) to Decatur (DEC)
- Flights from Boston (BOS) to Decatur (DEC)
- Flights from Pasco (PSC) to Decatur (DEC)
- Flights from Rapid City (RAP) to Decatur (DEC)
- Flights from Phoenix (PHX) to Decatur (DEC)
- Flights from Minneapolis (MSP) to Decatur (DEC)
- Flights from Los Angeles (LAX) to Decatur (DEC)
- Flights from Portland (PWM) to Decatur (DEC)
- Flights from Denver (DEN) to Decatur (DEC)
- Flights from Houston (HOU) to Decatur (DEC)
- Flights from Dallas (DAL) to Decatur (DEC)
- Flights from Atlanta (ATL) to New York (NYC)
- Flights from Atlanta (ATL) to Houston (IAH)
- Flights from Atlanta (ATL) to Las Vegas (LAS)
- Flights from Chicago (ORD) to Las Vegas (LAS)
- Flights from Chicago (ORD) to Phoenix (PHX)
- Flights from Seattle (SEA) to Chicago (ORD)
- Flights from Dallas (DFW) to Chicago (ORD)
- Flights from Atlanta (ATL) to Chicago (ORD)
- Flights from Los Angeles (LAX) to Chicago (ORD)
- Flights from New York (LGA) to Chicago (ORD)
- Flights from Minneapolis (MSP) to Chicago (ORD)
- Flights from Atlanta (ATL) to Dallas (DFW)
- Flights from Chicago (ORD) to Dallas (DFW)
- Flights from Atlanta (ATL) to Fort Lauderdale (FLL)
- Flights from Atlanta (ATL) to Miami (MIA)
- Flights from Chicago (ORD) to Miami (MIA)
- Flights from Atlanta (ATL) to New Orleans (MSY)
- Flights from Atlanta (ATL) to Punta Cana (PUJ)
- Flights from Chicago (ORD) to New York (LGA)
- Flights from Atlanta (ATL) to New York (LGA)
- Flights from Chicago (ORD) to Denver (DEN)
- Flights from Atlanta (ATL) to Denver (DEN)
- Flights from Chicago (ORD) to Orlando (MCO)
- Flights from Chicago (ORD) to Tampa (TPA)
- Flights from Atlanta (ATL) to New York (JFK)
- Flights from Atlanta (ATL) to Houston (HOU)
- Flights from Chicago (ORD) to Seattle (SEA)
- Flights from Chicago (ORD) to San Francisco (SFO)
- Flights from Atlanta (ATL) to Orlando (ORL)
- Flights from Chicago (ORD) to Los Angeles (LAX)
- Flights from Atlanta (ATL) to Los Angeles (LAX)
- Flights to Las Vegas
- Flights to Pigeon Forge
- Flights to Atlanta
- Flights to Chicago
- Flights to Gatlinburg
- Flights to Miami
- Flights to Washington
- Flights to New Orleans
- Flights to Boston
- Flights to Houston
- Flights to Los Angeles
- Flights to Honolulu
- Flights to Nashville
- Flights to San Francisco
- Flights to New York
- Flights to San Antonio
- Flights to San Diego
- Flights to Fort Lauderdale
- Flights to Orlando
- Flights to Key West