Southwest Airlines · West Palm Beach/Palm Beach, FL to Islip, NY · 48 flights observed, 2025-08-05 to 2025-09-30 · 1,052 mi
WN3976 covers more than one route in the data window — the stats below are for PBI → ISP, the one it has flown most recently. The others are linked under “Other routes”.
How often is WN3976 on time?
Across 48 flights on PBI → ISP from 2025-08-05 to 2025-09-30, WN3976 arrived within 15 minutes of schedule 69% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +59 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 33 | 69% |
| 16-30 min | 3 | 6% |
| 31-60 min | 7 | 15% |
| 61-120 min | 5 | 10% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 22 | 55% | +19 min |
| 2025-09 | 26 | 81% | +2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 50% |
| Tue | 9 | 100% |
| Wed | 8 | 88% |
| Thu | 8 | 50% |
| Fri | 8 | 50% |
| Sat | No data | — |
| Sun | 7 | 71% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…