Flight profile · Delta Air Lines
DL2511
Atlanta (ATL) to Rochester (ROC) · scheduled 9:48 AM – 12:04 PM
How DL2511 performs
367 operations, 2025-06-25 to 2026-06-30.
DL2511 arrived on time 82.2% of the time, against 77.6% for all ATL → ROC flights — this specific departure is 4.6 percentage points better than the route as a whole. Against Delta Air Lines’s own flights on this route it is 4.6 points better.
Source: US DOT Bureau of Transportation Statistics · 367 operations between 2025-06-25 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL2511 | 82.2% | 1.91% | -4 min | 3.1% | 367 |
| Delta Air Lines on ATL → ROC | 77.6% | 1.53% | -3 min | 7.0% | 3,077 |
| All ATL → ROC flights | 77.6% | 1.53% | -3 min | 7.0% | 3,077 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-06-25 to 2026-06-30
Other routes DL2511 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| ROC→ATL Rochester to Atlanta | 2025-06-25 – 2026-06-30 | 367 | 79.6% |
| DTW→OMA Detroit to Omaha | 2025-06-22 – 2025-06-22 | 1 | — |
| OMA→DTW Omaha to Detroit | 2025-06-22 – 2025-06-22 | 1 | — |
| MIA→MSP Miami to Minneapolis | 2025-05-07 – 2025-06-07 | 32 | — |
| SLC→BUR Salt Lake City to Burbank | 2025-04-14 – 2025-05-06 | 23 | — |
| AUS→MCO Austin to Orlando | 2024-12-19 – 2025-01-05 | 15 | — |
| SRQ→ATL Sarasota/Bradenton to Atlanta | 2024-12-21 – 2025-01-04 | 3 | — |
| DEN→ATL Denver to Atlanta | 2024-05-09 – 2024-06-06 | 16 | — |
| BOS→JFK Boston to New York | 2024-04-09 – 2024-05-06 | 28 | — |
| ATL→GSP Atlanta to Greenville/Greer/Spartanburg | 2024-03-10 – 2024-04-08 | 30 | — |
| GSP→ATL Greenville/Greer/Spartanburg to Atlanta | 2024-03-10 – 2024-04-08 | 30 | — |
| DFW→LGA Dallas–Fort Worth to New York | 2024-01-08 – 2024-03-08 | 53 | — |
| LGA→DFW New York to Dallas–Fort Worth | 2024-01-08 – 2024-03-08 | 53 | — |
| ATL→JFK Atlanta to New York | 2023-12-16 – 2024-01-07 | 23 | — |
| MSP→GRR Minneapolis to Grand Rapids | 2023-09-10 – 2023-12-15 | 90 | 92.2% |
| GRR→MSP Grand Rapids to Minneapolis | 2023-09-10 – 2023-12-15 | 86 | — |
| ATL→CHA Atlanta to Chattanooga | 2023-08-08 – 2023-08-30 | 8 | — |
Because the same number has served different journeys, the statistics above describe only the route DL2511 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 367 records of DL2511 operating ATL → ROC, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.