Latest arrival OTP
67.7%
+5.7 points year over year
Latest departure OTP
68.1%
+3.9 points year over year
National arrival rank
#281
of 351 airports · -5.1 pts vs. national avg
12-month average
68.8%
Arrival OTP · departures 71.0%

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 monthNov 2023 · 87.0%
Weakest monthFeb 2025 · 53.9%
Longest improvement streak4 month-to-month gains
Longest decline streak4 month-to-month declines
Latest reported operations23,905

Latest 12 Months

Newest month appears first.

MonthArr.Dep.ArrivalsDepartures
Jun 202667.7%68.1%11,95211,953
May 202674.1%75.2%12,15912,158
Apr 202675.2%75.8%11,80411,802
Mar 202662.3%64.7%12,20212,204
Feb 202663.6%67.3%10,99610,996
Jan 202665.0%67.9%11,85811,858
Dec 202567.0%67.5%11,31011,308
Nov 202566.9%71.7%11,59311,586
Oct 202574.8%78.2%12,29812,273
Sep 202576.2%79.1%11,82211,822
Aug 202574.1%76.2%12,09912,098
Jul 202558.9%60.6%12,19412,192
Flightline Intel readout: Washington recorded 67.7 percent on-time arrivals and 68.1 percent on-time departures in Jun 2026. Its trailing 12-month arrival average stands at 68.8 percent. The strongest month in the current record was Nov 2023 at 87.0 percent, while the weakest was Feb 2025 at 53.9 percent.