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WanderNerd

Flight Reliability

AA 6420 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 6420 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

77%
Arrive within 15 minutes
17 min
Average arrival delay
3.1%
Cancelled
8 min early
Median arrival delay

Based on 392 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon80%(55 flights)
  • Tue78%(55 flights)
  • Wed78%(50 flights)
  • Thu72%(53 flights)
  • Fri76%(55 flights)
  • Sat80%(55 flights)
  • Sun75%(56 flights)
On-time by departure window
  • 6–9 AM82%(182 flights)
  • 9 AM–12 PM84%(86 flights)
  • 6–9 PM64%(33 flights)
  • 9 PM–12 AM63%(78 flights)
On-time trend by month
82%
May

Jun 39% → May 82% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202539%26
July 202556%27
August 202573%30
September 202583%30
October 202590%30
November 202590%29
December 202581%31
January 202667%27
February 202673%26
March 202690%31
April 202685%54
May 202682%38
Departures on time
78%
Diverted
0.3%
Flights flown
379
Months covered
12

Based on 392 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.