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 10 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
12
Airlines
10
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