Flight OddsDL1797 JFK → SJU
Delta Air Lines · New York, NY to San Juan, PR · 16 flights observed, 2025-12-20 to 2026-01-04 · 1,598 mi
DL1797 covers more than one route in the data window — the stats below are for JFK → SJU, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
64%
Median delay
+3 min
90th percentile
+64 min
Cancellation rate
13%
How often is DL1797 on time?
Across 16 flights on JFK → SJU from 2025-12-20 to 2026-01-04, DL1797 arrived within 15 minutes of schedule 64% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +64 min or later. 13% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 9 | 64% |
| 16-30 min | 1 | 7% |
| 31-60 min | 2 | 14% |
| 61-120 min | 2 | 14% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 11 | 55% | +17 min |
| 2026-01 | 3 | 100% | -12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 2 | 50% |
| Tue | 2 | 50% |
| Wed | 2 | 100% |
| Thu | 2 | 100% |
| Fri | 1 | 100% |
| Sat | 2 | 0% |
| Sun | 3 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…