Home / Routes / KPSM → KGAI24 scheduled

The route from Portsmouth International at Pease Airport (KPSM) in Portsmouth to Montgomery County Airpark (KGAI) in Gaithersburg. SkyMeter tracks roughly 24 scheduled flights on this route across 8 carriers. The most active operator is CNS (CNS). Average block time is 1h 44m. Departures average 21 minutes off schedule, with 42% running more than 15 minutes late. The most common aircraft on this route is the PILATUS Pilatus PC-12.

Scheduled
24
last 323 days
ADS-B observed
10
Airlines
8
Avg dep delay
21m
Late >15 min
41.7%
Cancel rate
0.00%

Recent observed flights

From ADS-B trace data

2026-08-06 16:10  →  2026-08-06 18:06  ·  1h 55m
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2026-07-27 15:32  →  2026-07-27 17:59  ·  2h 27m
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2026-07-22 11:27  →  2026-07-22 12:52  ·  1h 25m
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2026-07-15 16:10  →  2026-07-15 18:47  ·  2h 37m
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2026-07-10 16:35  →  2026-07-10 19:02  ·  2h 27m
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2026-07-10 14:49  →  2026-07-10 16:58  ·  2h 8m
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2026-07-09 23:35  →  2026-07-10 01:02  ·  1h 27m
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2026-06-22 12:27  →  2026-06-22 15:34  ·  3h 6m
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2026-06-18 16:24  →  2026-06-18 18:42  ·  2h 17m
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2026-06-17 18:00  →  2026-06-17 20:03  ·  2h 3m
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View KGAI → KPSM