Skip to content
WanderNerd
Check a flight

Flight Reliability

AA 4135 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 4135 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

83%
Arrive within 15 minutes
10 min
Average arrival delay
0%
Cancelled
11 min early
Median arrival delay

Based on 195 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon81%(21 flights)
  • Tue80%(45 flights)
  • Wed85%(33 flights)
  • Thu87%(23 flights)
  • Fri79%(24 flights)
  • Sat96%(24 flights)
  • Sun72%(25 flights)
On-time by departure window
  • 6–9 AM81%(97 flights)
  • 9 AM–12 PM90%(57 flights)
  • 12–3 PM78%(18 flights)
  • 3–6 PM74%(23 flights)
On-time trend by month
81%
May

Aug 64% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202564%14
September 202593%58
October 202577%35
March 202680%10
April 202688%24
May 202681%41
Departures on time
86%
Diverted
0%
Flights flown
195
Months covered
9

Keep nerding

Based on 195 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.