Home / Routes / KISP → KPSM17 scheduled

The route from Long Island Mac Arthur Airport (KISP) in Islip to Portsmouth International at Pease Airport (KPSM) in Portsmouth. SkyMeter tracks roughly 17 scheduled flights on this route across 12 carriers. The most active operator is CNS (CNS). Average block time is 0h 44m. Departures average 23 minutes off schedule, with 35% running more than 15 minutes late. The most common aircraft on this route is the PILATUS Pilatus PC-12.

Scheduled
17
last 426 days
ADS-B observed
13
Airlines
12
Avg dep delay
23m
Late >15 min
35.3%
Cancel rate
0.00%

Recent observed flights

From ADS-B trace data

2026-08-04 15:51  →  2026-08-04 19:41  ·  3h 50m
Replay
2026-08-03 17:48  →  2026-08-03 18:30  ·  41m
Replay
2026-07-30 20:38  →  2026-07-30 21:32  ·  54m
Replay
2026-07-18 21:47  →  2026-07-18 22:32  ·  45m
Replay
2026-07-17 17:55  →  2026-07-17 18:39  ·  44m
Replay
2026-07-15 15:35  →  2026-07-15 16:38  ·  1h 2m
Replay
2026-07-10 19:19  →  2026-07-10 20:09  ·  50m
Replay
2026-07-09 21:45  →  2026-07-09 22:37  ·  52m
Replay
2026-07-03 22:26  →  2026-07-03 23:45  ·  1h 18m
Replay
2026-06-22 00:16  →  2026-06-22 01:44  ·  1h 28m
Replay

Looking for the return flight?

View KPSM → KISP