Latest arrival OTP
100.0%
+0.0 points year over year
Latest departure OTP
87.5%
-12.5 points year over year
National arrival rank
#3
of 351 airports · +27.2 pts vs. national avg
12-month average
82.4%
Arrival OTP · departures 76.0%

Historical On-Time Performance

Monthly arrival and departure performance, with trailing 12-month averages.

Seasonal Arrival Pattern

Average arrival OTP by calendar month across the loaded history.

Historical Records

MeasureResult
Best monthFeb 2023 · 100.0%
Weakest monthSep 2025 · 50.0%
Longest improvement streak2 month-to-month gains
Longest decline streak2 month-to-month declines
Latest reported operations16

Latest 12 Months

Newest month appears first.

MonthArr.Dep.ArrivalsDepartures
Jun 2026100.0%87.5%88
May 202688.9%77.8%99
Apr 202677.8%77.8%99
Mar 202687.5%87.5%88
Feb 202662.5%87.5%88
Jan 202688.9%77.8%99
Dec 202588.9%88.9%99
Nov 202588.9%88.9%99
Oct 2025100.0%88.9%99
Sep 202550.0%50.0%88
Aug 202577.8%33.3%99
Jul 202577.8%66.7%99
Flightline Intel readout: Adak Island recorded 100.0 percent on-time arrivals and 87.5 percent on-time departures in Jun 2026. Its trailing 12-month arrival average stands at 82.4 percent. The strongest month in the current record was Feb 2023 at 100.0 percent, while the weakest was Sep 2025 at 50.0 percent.