Hartsfield Jackson Atlanta International Airport (ATL) delays & on-time performance
Atlanta, Georgia · 153 nonstop destinations · 12 airlines · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ATL right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
On-time arrivals
78%
arrived < 15 min late
Cancelled
1.8%
5,697 flights
Avg arrival delay
15 min
66 min when late
Departed on time
78%
avg taxi-out 17 min
Figures cover 315,859 departures from ATL; on-time is measured at arrival. Arrivals into ATL were on time 82% of the time.
Key facts
- Flights departing Hartsfield Jackson Atlanta International Airport (ATL) arrived on time 78% of the time in Aug 2025 – Jul 2026, in line with the national average.
- 1.8% were cancelled, and 7% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (80% on time); Frontier Airlines was the least (64%).
- Departures scheduled around 8am did best (89% on time); around 6pm did worst (69%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (43%).
Most delayed routes from ATL
Lowest on-time arrival rates among regularly flown routes.
- DCA · Washington70%6,800 flts
- SFO · San Francisco70%3,352 flts
- MCO · Orlando71%8,208 flts
- ORD · Chicago71%6,440 flts
- FLL · Fort Lauderdale71%7,265 flts
- SJU · San Juan71%2,099 flts
- MIA · Miami71%6,268 flts
- EWR · Newark73%6,265 flts
- ASE · Aspen73%450 flts
- LGA · New York73%8,413 flts
Most reliable routes from ATL
Highest on-time arrival rates among regularly flown routes.
- DAB · Daytona Beach87%1,455 flts
- SJC · San Jose86%901 flts
- ICT · Wichita86%1,150 flts
- LIT · Little Rock85%2,294 flts
- DAY · Dayton85%1,402 flts
- GNV · Gainesville85%1,591 flts
- AVL · Asheville85%2,018 flts
- LEX · Lexington85%2,055 flts
- TUL · Tulsa85%1,576 flts
- DSM · Des Moines85%1,251 flts
Best airline at ATL
Departures from this airport, ranked by on-time arrival.
| Airline | On time | Cancelled | Avg delay | Routes | Flights |
|---|---|---|---|---|---|
| United Airlines | 80% | 1.5% | 17 min | 6 | 7,595 |
| Delta Air Lines | 80% | 1.7% | 13 min | 139 | 240,720 |
| PSA Airlines | 78% | 4.8% | 25 min | 5 | 3,307 |
| Alaska Airlines | 77% | 0.8% | 14 min | 3 | 1,395 |
| Southwest Airlines | 77% | 1.0% | 15 min | 25 | 17,479 |
| American Airlines | 76% | 2.0% | 26 min | 14 | 6,801 |
| Republic Airways | 75% | 4.7% | 21 min | 8 | 3,002 |
| SkyWest Airlines | 75% | 2.4% | 28 min | 32 | 6,955 |
| Envoy Air | 73% | 2.4% | 20 min | 5 | 1,112 |
| Spirit Airlines | 72% | 3.5% | 23 min | 18 | 4,513 |
| JetBlue | 70% | 3.9% | 28 min | 3 | 2,699 |
| Frontier Airlines | 64% | 2.3% | 30 min | 48 | 20,281 |
Best time to fly out of ATL
On-time arrival rate by scheduled departure hour (local time).
- 6am90%5,829 flts
- 7am88%14,777 flts
- 8am89%24,098 flts
- 9am84%24,575 flts
- 10am84%17,831 flts
- 11am84%21,262 flts
- 12pm83%17,016 flts
- 1pm81%16,076 flts
- 2pm78%16,487 flts
- 3pm74%22,799 flts
- 4pm72%20,125 flts
- 5pm71%16,745 flts
- 6pm69%14,936 flts
- 7pm69%20,680 flts
- 8pm69%16,247 flts
- 9pm74%19,722 flts
- 10pm75%20,676 flts
- 11pm78%4,443 flts
Monthly trend
Why departures were late
- Airline (crew, maintenance, cleaning, fueling)43%
- Late-arriving aircraft31%
- Air traffic control & airport congestion21%
- Extreme weather5%
- Security0%
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.