About 1 in 6 DL 1961 flights from New York arrived 15+ minutes late, diverted or cancelled over the past year (17%); 1.1% were cancelled. The typical flight landed 12 minutes early.
DL 1961: JFK → SJU
Scheduled to leave New York at 12:25 p.m. local time. Over the past year it arrived on time 83% of the time (364 flights), in line with other DL flights on the route at that hour (83%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 87% |
| Tuesday | 52 | 83% |
| Wednesday | 52 | 88% |
| Thursday | 51 | 76% |
| Friday | 52 | 85% |
| Saturday | 52 | 75% |
| Sunday | 52 | 85% |
Why it was late
All flights JFK → SJU · Connecting off DL 1961? Check the risk
DL 1961: SJU → JFK
Scheduled to leave San Juan at 6:00 p.m. local time. Over the past year it arrived on time 86% of the time (267 flights), in line with other DL flights on the route at that hour (84%). Last seen in the data Aug 31, 2026.
Usually Delta Air Lines's last flight of the day from San Juan to New York (100% of days). Delta Air Lines's last SJU–JFK flight was cancelled 2.2% of the time, against 2.4% for its earlier ones. If it's cancelled, the next Delta Air Lines flight is usually around 7:30 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 40 | 88% |
| Tuesday | 38 | 87% |
| Wednesday | 38 | 82% |
| Thursday | 37 | 84% |
| Friday | 38 | 97% |
| Saturday | 38 | 82% |
| Sunday | 38 | 82% |
Why it was late
All flights SJU → JFK · Connecting off DL 1961? Check the risk
Questions
How often is DL 1961 from JFK to SJU late?
Delta Air Lines 1961 from New York, NY to San Juan, PR arrived 15 or more minutes late, was diverted or was cancelled on 17% of 364 scheduled flights between September 2025 and August 2026. 1.1% were cancelled.
How often is DL 1961 from SJU to JFK late?
Delta Air Lines 1961 from San Juan, PR to New York, NY arrived 15 or more minutes late, was diverted or was cancelled on 14% of 267 scheduled flights between September 2025 and August 2026. 1.9% 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.