About 1 in 5 DL 5311 flights from Rochester arrived 15+ minutes late, diverted or cancelled over the past year (21%); 3.5% were cancelled. The typical flight landed 11 minutes early.
DL 5311: ROC → LGA
Scheduled to leave Rochester at 6:00 a.m. local time, operated by Endeavor Air as 9E 5311. Over the past year it arrived on time 79% of the time (339 flights), in line with other DL flights on the route at that hour (79%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 51 | 67% |
| Tuesday | 50 | 78% |
| Wednesday | 50 | 78% |
| Thursday | 50 | 76% |
| Friday | 50 | 86% |
| Saturday | 45 | 87% |
| Sunday | 43 | 81% |
Why it was late
All flights ROC → LGA · Connecting off DL 5311? Check the risk
Questions
How often is DL 5311 from ROC to LGA late?
Delta Air Lines 5311 from Rochester, NY to New York, NY arrived 15 or more minutes late, was diverted or was cancelled on 21% of 339 scheduled flights between September 2025 and August 2026. 3.5% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Delta Air Lines for today's flight. Method.