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Flight Reliability

AA 2421 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 2421 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

70%
Arrive within 15 minutes
14 min
Average arrival delay
3.5%
Cancelled
4 min early
Median arrival delay

Based on 368 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon70%(50 flights)
  • Tue88%(41 flights)
  • Wed60%(40 flights)
  • Thu70%(56 flights)
  • Fri71%(56 flights)
  • Sat70%(53 flights)
  • Sun61%(57 flights)
On-time by departure window
  • 6–9 AM88%(57 flights)
  • 9 AM–12 PM79%(14 flights)
  • 12–3 PM55%(11 flights)
  • 3–6 PM65%(148 flights)
  • 6–9 PM68%(123 flights)
On-time trend by month
57%
May

Jun 59% → May 57% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202559%29
July 202560%30
August 202565%31
September 202579%29
October 202563%16
November 202581%26
December 202582%28
January 202685%34
February 202671%28
March 202670%30
April 202667%30
May 202657%42
Departures on time
70%
Diverted
0.5%
Flights flown
353
Months covered
12

Keep nerding

Based on 368 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.