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Flight Reliability

AA 5251 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 5251 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

66%
Arrive within 15 minutes
20 min
Average arrival delay
6.2%
Cancelled
2 min early
Median arrival delay

Based on 422 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon51%(53 flights)
  • Tue71%(62 flights)
  • Wed74%(58 flights)
  • Thu68%(53 flights)
  • Fri64%(59 flights)
  • Sat60%(58 flights)
  • Sun72%(50 flights)
On-time by departure window
  • 6–9 AM83%(47 flights)
  • 9 AM–12 PM70%(192 flights)
  • 12–3 PM—(2 flights)
  • 3–6 PM71%(38 flights)
  • 6–9 PM52%(103 flights)
  • 9 PM–12 AM46%(11 flights)
On-time trend by month
78%
May

Jun 60% → May 78% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202560%53
July 202576%58
August 202574%35
November 202557%28
December 202532%28
January 202671%51
February 202656%36
March 202652%25
April 202679%28
May 202678%41
Departures on time
68%
Diverted
0.7%
Flights flown
393
Months covered
12

Keep nerding

Based on 422 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.