Flight OddsDL1966 SJU → JFK
Delta Air Lines · San Juan, PR to New York, NY · 263 flights observed, 2025-07-01 to 2026-06-30 · 1,598 mi
DL1966 covers more than one route in the data window — the stats below are for SJU → JFK, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
86%
Median delay
-14 min
90th percentile
+24 min
Cancellation rate
2%
How often is DL1966 on time?
Across 263 flights on SJU → JFK from 2025-07-01 to 2026-06-30, DL1966 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was -14 min, and the worst 10% of flights arrived +24 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 220 | 86% |
| 16-30 min | 16 | 6% |
| 31-60 min | 9 | 4% |
| 61-120 min | 4 | 2% |
| 2+ hrs | 7 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 77% | +18 min |
| 2025-08 | 30 | 93% | -20 min |
| 2025-09 | 10 | 80% | -6 min |
| 2025-10 | 6 | 67% | +1 min |
| 2025-11 | 8 | 100% | -30 min |
| 2026-01 | 26 | 92% | -8 min |
| 2026-02 | 25 | 80% | +2 min |
| 2026-03 | 30 | 87% | -11 min |
| 2026-04 | 30 | 90% | -10 min |
| 2026-05 | 30 | 80% | -6 min |
| 2026-06 | 30 | 90% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 36 | 89% |
| Tue | 38 | 82% |
| Wed | 38 | 87% |
| Thu | 37 | 92% |
| Fri | 37 | 92% |
| Sat | 36 | 83% |
| Sun | 34 | 76% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…