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Flight Reliability

AA 1421 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 1421 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

67%
Arrive within 15 minutes
25 min
Average arrival delay
5.8%
Cancelled
1 min
Median arrival delay

Based on 432 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon65%(60 flights)
  • Tue79%(58 flights)
  • Wed69%(54 flights)
  • Thu56%(57 flights)
  • Fri58%(62 flights)
  • Sat77%(52 flights)
  • Sun65%(63 flights)
On-time by departure window
  • 3–6 AM93%(29 flights)
  • 9 AM–12 PM67%(27 flights)
  • 12–3 PM68%(108 flights)
  • 3–6 PM62%(222 flights)
  • 6–9 PM—(5 flights)
  • 9 PM–12 AM80%(15 flights)
On-time trend by month
81%
May

Jun 60% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202560%55
July 202530%27
August 202584%44
September 202532%56
October 202567%36
November 202580%30
December 202577%13
January 202670%27
February 202671%28
March 202697%30
April 202683%29
May 202681%31
Departures on time
70%
Diverted
0.2%
Flights flown
406
Months covered
12

Keep nerding

Based on 432 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.