Monthly Airspace Report
September 2026
↑ 103% more disrupted time than the previous month
Partial data - this month started before permanent record-keeping began (9 September 2026).
871
TOTAL EVENTS
2922h 22m
DISRUPTED TIME
110
GROUND STOPS
BOS
WORST AIRPORT
Worst Single Day
17 September— 168h 45m of combined disruption across all airports
Longest Single Incident
LPL Airport Closed
24h 6m · ATC Restriction
Leading Causes
Notable Incidents (RED-level)
Airport Closed · ATC Restriction · 27 Sept
Airport Closed · ATC Restriction · 28 Sept
Airport Closed · ATC Restriction · 25 Sept
Airport Closed · ATC Restriction · 21 Sept
Airport Closed · ATC Restriction · 18 Sept
Airport Closed · ATC Restriction · 30 Sept
Airport Closed · ATC Restriction · 29 Sept
Airport Closed · ATC Restriction · 26 Sept
Airport Closed · ATC Restriction · 24 Sept
Airport Closed · ATC Restriction · 23 Sept
Airport Closed · ATC Restriction · 22 Sept
Airport Closed · ATC Restriction · 20 Sept
Airport Closed · ATC Restriction · 19 Sept
Airport Closed · ATC Restriction · 17 Sept
Airport Closed · ATC Restriction · 16 Sept