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Flight Reliability

AA 4277 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 4277 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

92%
Arrive within 15 minutes
0 min
Average arrival delay
1.0%
Cancelled
11 min early
Median arrival delay

Based on 297 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon90%(40 flights)
  • Tue96%(48 flights)
  • Wed93%(43 flights)
  • Thu95%(38 flights)
  • Fri95%(40 flights)
  • Sat88%(42 flights)
  • Sun88%(40 flights)
On-time by departure window
  • 3–6 AM92%(119 flights)
  • 6–9 AM92%(101 flights)
  • 3–6 PM—(3 flights)
  • 6–9 PM88%(24 flights)
  • 9 PM–12 AM96%(44 flights)
On-time trend by month
97%
May

Jun 83% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%30
July 2025100%30
August 202583%30
September 202593%30
October 2025100%31
November 202589%27
January 202693%27
February 2026100%16
April 202679%24
May 202697%31
Departures on time
96%
Diverted
1.0%
Flights flown
291
Months covered
12

Keep nerding

Based on 297 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.