Flightline logoFLIGHTLINE INTEL
Airport Operational Performance · ATL

Atlanta On-Time Performance

Historical arrival and departure reliability for Atlanta, GA (ATL), covering 44 reported months.

Latest data: Jun 2026Source: DOT Air Travel Consumer ReportFlightline Intel Beta
Latest arrival OTP
81.9%
+11.0 points year over year
Latest departure OTP
78.3%
+15.0 points year over year
National arrival rank
#59
of 351 airports · +9.1 pts vs. national avg
12-month average
81.3%
Arrival OTP · departures 77.4%

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 2025 · 90.1%
Weakest monthJul 2024 · 63.9%
Longest improvement streak5 month-to-month gains
Longest decline streak3 month-to-month declines
Latest reported operations53,920

Latest 12 Months

Newest month appears first.

MonthArr.Dep.ArrivalsDepartures
Jun 202681.9%78.3%26,95926,961
May 202679.8%76.9%27,53227,535
Apr 202685.1%82.1%26,59926,607
Mar 202676.1%72.4%26,66226,669
Feb 202683.7%80.5%23,02023,024
Jan 202678.2%74.9%24,59024,595
Dec 202576.3%70.7%25,78125,764
Nov 202581.4%78.7%25,87125,888
Oct 202585.6%82.3%27,55327,556
Sep 202590.1%86.6%25,85025,839
Aug 202581.7%77.3%27,36027,353
Jul 202575.2%67.9%28,54828,551
Flightline Intel readout: Atlanta recorded 81.9 percent on-time arrivals and 78.3 percent on-time departures in Jun 2026. Its trailing 12-month arrival average stands at 81.3 percent. The strongest month in the current record was Sep 2025 at 90.1 percent, while the weakest was Jul 2024 at 63.9 percent.