Latest arrival OTP
61.5%
-12.4 points year over year
Latest departure OTP
75.6%
+14.7 points year over year
National arrival rank
#339
of 347 airports · -16.1 pts vs. national avg
12-month average
53.9%
Arrival OTP · departures 48.8%

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 monthSep 2024 · 100.0%
Weakest monthOct 2025 · 11.1%
Longest improvement streak3 month-to-month gains
Longest decline streak4 month-to-month declines
Latest reported operations156

Latest 12 Months

Newest month appears first.

MonthArr.Dep.ArrivalsDepartures
May 202661.5%75.6%7878
Apr 202651.1%58.7%4746
Mar 202666.7%61.1%1818
Feb 202661.5%53.8%1313
Jan 202644.4%44.4%99
Dec 202554.5%45.5%1111
Nov 202544.4%33.3%99
Oct 202511.1%0.0%99
Sep 202587.5%75.0%88
Aug 202552.4%38.1%2121
Jul 202555.6%47.2%3636
Jun 202556.3%53.1%3232
Flightline Intel readout: Clarksburg/Fairmont recorded 61.5 percent on-time arrivals and 75.6 percent on-time departures in May 2026. Its trailing 12-month arrival average stands at 53.9 percent. The strongest month in the current record was Sep 2024 at 100.0 percent, while the weakest was Oct 2025 at 11.1 percent.