Atlanta Hartfield-Jackson (ATL): Stats & Tips

ATL is the largest airport in the United States, with over 350,000 departures annually, with about a 7% increase yearly. In 2025 so far, ATL has already welcomed over 30 million passengers, on track to surpass last year’s nearly 60 million. What does that mean for your flight? And how much should you prepare beforehand if you know you’ll be passing through Atlanta?

 

PreFlight ATL has reliably assisted over 150,000 travel groups annually with off-airport parking services, with an average shuttle time of just 6-12 minutes to and from the airport. Rely on PreFlight to ensure you reach your flight on time!

 

Airline Performance (Jan–Aug 2025) 

According to U.S. Bureau of Transportation Statistics, these are the top three airlines for arrivals at ATL so far: 

Airline	Total Flights	On-Time %	Delayed % (>15 mins)	Canceled %
Delta	112,949	75.5%	22.87%	1.35%
Southwest	10,204	78.85%	19.52%	1.5%
Frontier	5,237	60.86%	36.26%	2.79%

 

It's no surprise that Delta dominates ATL as it serves as the airline’s global headquarters!

 

Airport-Wide On-Time Performance

ATL operates with an average of 2,174 flights per day. Here’s a look at its operational stats:

 

Metrics	Performance
Overall On-Time %	79.15%
Weather Delays	0.73%
Aircraft Arriving Delays	7.73%
NAS Delays (Airspace System)	5.4%
Departing Delays (>15 Mins)	24%
Cancellations	0.39%
Avg. Delay Time	29-71 minutes

 

 

Delay Trends:

• Peak Delay Hours: 9:00 p.m. – 5:00 a.m.
• Least Delay Hours: 5:00 a.m. – 11:59 a.m.
• Busiest Delay Month: July
• Best Month for On-Time Flights: September

 

 

Passenger Traffic 

ATL remains a global hub, balancing both domestic and international demand.

 

Traffic From 2024

Category	2024 Passengers	Share of Total
Domestic Passengers	93.5 Million	86.5%
International Passengers	14.6 Million	13.5%

 

Breakdown:

• Domestic arrivals: 46.78M | Departures: 46.65M
• International arrivals: 7.31M | Departures: 7.32M

 

Traffic From 2025 (Jan-August 2025)

Category	2025 Passengers	Share of Total
Domestic Passengers	44,942,253	78.26%
International Passengers	12,478,730	21.73%

 

Breakdown:

• Domestic arrivals: 22.8M | Departures: 22.4M
• International arrivals: 6.23M | Departures: 6.24M

 

Top Destinations from ATL

With connectivity to 245+ destinations worldwide, ATL serves as both a business and leisure gateway.

 

Most Traveled Routes (2024):

1. Orlando (MCO) – 1.45M passengers
2. Fort Lauderdale (FLL) – 1.26M
3. New York (LGA) – 1.24M
4. Tampa (TPA) – 1.06M
5. Miami (MIA) – 1.03M
6. Los Angeles (LAX) – 978K
7. Dallas-Fort Worth (DFW) – 974K
8. Denver (DEN) – 933K

Florida dominates ATL’s domestic travel market, while New York, Los Angeles, Dallas, and Denver highlight its importance for both business and leisure travelers.

 

 

Travel Tips for Flying Through Hartsfield-Jackson

Based on the trends across ATL airport, here are some tips to help make your trip easier:

• Monitor Your Flight Live – Utilize a flight tracking app to keep an eye on any alterations prior to arriving at the airport.
• Opt for Morning Flights – Flights scheduled in the morning typically have a reduced risk of delays.
• Reach Out to Your Airline or Travel Agent Quickly – In the event of a delay or cancellation, acting swiftly will provide you with more rebooking alternatives.
• Familiarize Yourself with Airport Amenities – ATL provides real-time information through its website and mobile application.
• Use PreFlight Airport Parking to get to the airport with convenience and the best off-airport parking rates. 

 

 

Citations

• ATL Atlanta Hartsfield-Jackson International Airport Flight Statistics - delays - cancellations | Airportia. (n.d.). https://www.airportia.com/united-states/hartsfield-jackson-atlanta-international-airport/statistic/ 
• Flight Delay Predictor. (2025, September 10). Atlanta (ATL) flight delays: Busiest Airport Trends & Info. FlightDelayPredictor
• Flights. Bureau of Transportation Statistics. (n.d.-a). https://data.bts.gov/stories/s/Flights/fjyj-2qqx 
• Hartsfield-Jackson Atlanta International Airport Statistics 2024. Road Genius. (n.d.). Road Genius 
• OT delay. BTS. (n.d.-a). OT_DelayCause 
• Passengers. Bureau of Transportation Statistics. (n.d.-b). https://data.bts.gov/stories/s/Passengers/itj6-vfiw 
• Performance. Bureau of Transportation Statistics. (n.d.-c). https://data.bts.gov/stories/s/Performance/939q-bf5e