Flight DL2511
Delta Air Lines flight DL2511
Looking for DL2511 in the air…
Atlanta (ATL) to Rochester (ROC)
Historically, this flight arrives 15+ minutes late 17% of the time, and when it is late the delay averages 52 minutes. It was cancelled 1.9% of the time.
- On-time arrivals
- 83.0%
- Less than 15 minutes late
- Cancelled
- 1.9%
- Of scheduled flights
- Average delay when late
- 52 min
- Flights arriving 15+ minutes late
- Flights tracked
- 361
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 42%
- Airline (crew, maintenance, cleaning) 40%
- Air traffic control & airport 17%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Rochester (ROC) to Atlanta (ATL)
Historically, this flight arrives 15+ minutes late 23% of the time, and when it is late the delay averages 66 minutes. It was cancelled 1.9% of the time.
- On-time arrivals
- 76.7%
- Less than 15 minutes late
- Cancelled
- 1.9%
- Of scheduled flights
- Average delay when late
- 66 min
- Flights arriving 15+ minutes late
- Flights tracked
- 361
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 43%
- Air traffic control & airport 24%
- Airline (crew, maintenance, cleaning) 22%
- Extreme weather 11%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
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Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 93.3% | 60 |
| October 2025 | 86.9% | 62 |
| November 2025 | 79.3% | 60 |
| December 2025 | 47.4% | 62 |
| January 2026 | 67.2% | 62 |
| February 2026 | 76.8% | 56 |
| March 2026 | 87.9% | 58 |
| April 2026 | 87.5% | 56 |
| May 2026 | 90.3% | 62 |
| June 2026 | 93.0% | 60 |
| July 2026 | 70.0% | 62 |
| August 2026 | 77.4% | 62 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data