Flight OddsISP → BWI Southwest Airlines
Southwest Airlines · Islip, NY to Baltimore, MD · 1,217 flights, 2025-07-01 to 2026-06-30 · aggregated across 66 flight numbers
On-time arrival
86%
Median delay
-7 min
90th percentile
+27 min
Cancellation rate
1%
How on-time is Southwest Airlines from ISP to BWI?
Across every Southwest Airlines flight number on ISP → BWI (1,217 flights, 2025-07-01 to 2026-06-30), 86% arrived within 15 minutes of schedule. Median arrival delay -7 min; the worst 10% ran +27 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 1,024 | 86% |
| 16-30 min | 70 | 6% |
| 31-60 min | 50 | 4% |
| 61-120 min | 27 | 2% |
| 2+ hrs | 24 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 123 | 75% | +19 min |
| 2025-08 | 97 | 82% | +10 min |
| 2025-09 | 90 | 96% | -2 min |
| 2025-10 | 93 | 90% | +2 min |
| 2025-11 | 88 | 88% | 0 min |
| 2025-12 | 93 | 77% | +13 min |
| 2026-01 | 89 | 88% | -5 min |
| 2026-02 | 78 | 86% | -3 min |
| 2026-03 | 86 | 78% | +4 min |
| 2026-04 | 106 | 91% | -6 min |
| 2026-05 | 114 | 96% | -4 min |
| 2026-06 | 138 | 84% | +1 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 172 | 84% |
| Tue | 178 | 83% |
| Wed | 175 | 89% |
| Thu | 181 | 83% |
| Fri | 179 | 89% |
| Sat | 155 | 86% |
| Sun | 155 | 86% |
WN flight numbers on ISP → BWI
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…