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Flight Reliability

AA 4311 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 4311 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

73%
Arrive within 15 minutes
14 min
Average arrival delay
3.0%
Cancelled
2 min early
Median arrival delay

Based on 303 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon68%(50 flights)
  • Tue71%(28 flights)
  • Wed79%(43 flights)
  • Thu77%(52 flights)
  • Fri67%(45 flights)
  • Sat75%(24 flights)
  • Sun77%(51 flights)
On-time by departure window
  • 12–3 PM74%(74 flights)
  • 3–6 PM75%(154 flights)
  • 6–9 PM63%(38 flights)
  • 9 PM–12 AM78%(27 flights)
On-time trend by month
92%
May

Aug 63% → May 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202563%40
September 202574%38
October 202578%46
November 202582%27
February 202671%24
March 202683%40
April 202667%57
May 202692%12
Departures on time
79%
Diverted
0.3%
Flights flown
293
Months covered
10

Keep nerding

Based on 303 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.