Hartsfield-Jackson Atlanta International in October 2025

82.3%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In October 2025, reporting carriers scheduled 27,556 domestic departures from Hartsfield-Jackson Atlanta International (ATL). 82.3% left less than 15 minutes late and 81.3% reached their destination on time; 0.2% were cancelled.

Nationally that month, 80.0% of flights departed on time and 79.1% arrived on time, so ATL departures were 2.3 points above the national departure figure.

A year earlier, in October 2024, the airport had 29,837 departures with 87.4% leaving on time: a change of −5.1 points, with flights down 8%.

Flights arriving at ATL that month were on time 85.6% of the time (27,553 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 47%, late-arriving aircraft 30% and national aviation system 22%.

On time 81.3%
Arrived 15+ minutes late 18.3%
Cancelled 0.2%
Diverted 0.2%

Every scheduled departure from ATL in October 2025, judged by arrival at the destination.

October 2025 against a year earlier, the airport's year and the nation

Measure	Oct 2025	Oct 2024	ATL, 12 months to Jul 2026	All reported flights, Oct 2025
Departed on time	82.3%	87.4%	77.1%	80.0%
Arrived on time	81.3%	88.3%	76.6%	79.1%
Cancelled	0.2%	0.9%	1.8%	0.5%
Average departure delay (late minutes only)	11.4 min	7.0 min	15.1 min	13.9 min
Scheduled departures a day	919	995	865	20,195
Scheduled departures	27,556	29,837	315,859	605,844

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
DL Delta Air Lines	21,033	76%	82.8%	3.3 min	0.1%
WN Southwest Airlines	1,624	6%	76.0%	8.0 min	0.2%
F9 Frontier Airlines	1,573	6%	71.5%	16.4 min	0.1%
UA United Airlines	670	2%	80.9%	5.6 min	0.1%
AA American Airlines	615	2%	77.4%	16.1 min	0.3%
OO SkyWest Airlines	566	2%	84.1%	5.1 min	0.2%
NK Spirit Airlines	526	2%	83.3%	3.9 min	0.6%
YX Republic Airline	302	1%	71.9%	13.4 min	2.6%
OH PSA Airlines	244	1%	84.0%	1.9 min	0.0%
B6 JetBlue Airways	183	1%	70.5%	13.8 min	1.6%
AS Alaska Airlines	144	1%	71.5%	9.4 min	2.1%
MQ Envoy Air	76	0%	64.5%	12.0 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ATL–LGA	Atlanta to New York	799	69.5%	16.7 min	1.6%
ATL–MCO	Atlanta to Orlando	664	68.5%	19.1 min	0.2%
ATL–DCA	Atlanta to Washington	582	77.7%	4.3 min	0.2%
ATL–DFW	Atlanta to Dallas/Fort Worth	576	75.9%	8.6 min	0.7%
ATL–ORD	Atlanta to Chicago	569	75.6%	8.4 min	0.0%
ATL–EWR	Atlanta to Newark	536	67.7%	14.4 min	1.1%
ATL–BWI	Atlanta to Baltimore	501	80.4%	4.1 min	0.2%
ATL–FLL	Atlanta to Fort Lauderdale	487	78.6%	6.4 min	0.2%
ATL–MIA	Atlanta to Miami	485	79.0%	9.8 min	0.4%
ATL–TPA	Atlanta to Tampa	484	76.9%	9.7 min	0.2%
ATL–DEN	Atlanta to Denver	474	78.1%	6.3 min	0.0%
ATL–PHL	Atlanta to Philadelphia	474	77.4%	13.0 min	0.2%

By scheduled departure hour

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), October 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Oct 2025	Minutes
Air carrier	46.5%	34.0%	133,910
Late-arriving aircraft	30.4%	39.7%	87,694
National Aviation System	21.6%	22.9%	62,133
Extreme weather	1.4%	3.3%	3,900
Security	0.2%	0.1%	477

288,114 delay minutes on 5,050 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

How many flights left ATL on time in October 2025?

82.3% of 27,556 scheduled domestic departures left less than 15 minutes late, and 81.3% reached their destination on time. The national figures that month were 80.0% and 79.1%.

How does that compare with a year earlier?

In October 2024, 87.4% of 29,837 departures left on time and 0.9% were cancelled, against 82.3% and 0.2% in October 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for October 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for ATL · methodology · corrections.