Skip to content
WanderNerd
Check a flight

Flight Reliability

AA 4599 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 4599 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

78%
Arrive within 15 minutes
2 min
Average arrival delay
2.7%
Cancelled
9 min early
Median arrival delay

Based on 448 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon78%(59 flights)
  • Tue81%(62 flights)
  • Wed77%(64 flights)
  • Thu78%(63 flights)
  • Fri87%(68 flights)
  • Sat76%(59 flights)
  • Sun72%(61 flights)
On-time by departure window
  • 3–6 AM—(1 flights)
  • 6–9 AM76%(29 flights)
  • 9 AM–12 PM88%(114 flights)
  • 12–3 PM79%(137 flights)
  • 3–6 PM80%(56 flights)
  • 6–9 PM67%(97 flights)
  • 9 PM–12 AM—(2 flights)
On-time trend by month
72%
May

Jun 71% → May 72% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202571%28
July 202587%61
August 202587%62
September 202590%59
October 202559%34
November 202578%27
December 202562%21
January 202690%10
February 2026100%15
March 202656%25
April 202677%51
May 202672%43
Departures on time
84%
Diverted
0%
Flights flown
436
Months covered
12

Keep nerding

Based on 448 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.