About 1 in 4 DL 5315 flights from New York arrived 15+ minutes late, diverted or cancelled over the past year (26%); 3.6% were cancelled. The typical flight landed 15 minutes early.
DL 5315: JFK → ITH
Scheduled to leave New York at 11:50 a.m. local time, operated by Endeavor Air as 9E 5315. Over the past year it arrived on time 74% of the time (360 flights), in line with other DL flights on the route at that hour (74%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 75% |
| Tuesday | 52 | 69% |
| Wednesday | 50 | 68% |
| Thursday | 50 | 76% |
| Friday | 51 | 78% |
| Saturday | 52 | 81% |
| Sunday | 52 | 73% |
Why it was late
All flights JFK → ITH · Connecting off DL 5315? Check the risk
DL 5315: ITH → JFK
Scheduled to leave Ithaca at 2:05 p.m. local time, operated by Endeavor Air as 9E 5315. Over the past year it arrived on time 71% of the time (359 flights), in line with other DL flights on the route at that hour (69%). Last seen in the data Aug 31, 2026.
Usually Delta Air Lines's last flight of the day from Ithaca to New York (100% of days). Delta Air Lines's last ITH–JFK flight was cancelled 6.1% of the time, against 7.0% for its earlier ones. If it's cancelled, the next Delta Air Lines flight is usually around 5:28 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 66% |
| Tuesday | 52 | 69% |
| Wednesday | 50 | 68% |
| Thursday | 49 | 76% |
| Friday | 51 | 75% |
| Saturday | 52 | 77% |
| Sunday | 52 | 67% |
Why it was late
All flights ITH → JFK · Connecting off DL 5315? Check the risk
Questions
How often is DL 5315 from JFK to ITH late?
Delta Air Lines 5315 from New York, NY to Ithaca/Cortland, NY arrived 15 or more minutes late, was diverted or was cancelled on 26% of 360 scheduled flights between September 2025 and August 2026. 3.6% were cancelled.
How often is DL 5315 from ITH to JFK late?
Delta Air Lines 5315 from Ithaca/Cortland, NY to New York, NY arrived 15 or more minutes late, was diverted or was cancelled on 29% of 359 scheduled flights between September 2025 and August 2026. 6.1% 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.