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Flight Reliability

AA 1635 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 1635 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

72%
Arrive within 15 minutes
16 min
Average arrival delay
2.2%
Cancelled
3 min early
Median arrival delay

Based on 458 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(66 flights)
  • Tue68%(66 flights)
  • Wed76%(63 flights)
  • Thu73%(64 flights)
  • Fri78%(64 flights)
  • Sat72%(60 flights)
  • Sun62%(65 flights)
On-time by departure window
  • 6–9 AM—(9 flights)
  • 9 AM–12 PM87%(99 flights)
  • 12–3 PM90%(88 flights)
  • 3–6 PM41%(117 flights)
  • 6–9 PM79%(66 flights)
  • 9 PM–12 AM74%(69 flights)
On-time trend by month
93%
May

Jun 32% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202532%28
July 202541%29
August 202523%30
September 202555%29
October 202586%57
November 202583%30
December 202577%43
January 202685%34
February 202682%27
March 202666%29
April 202691%54
May 202693%58
Departures on time
73%
Diverted
0%
Flights flown
448
Months covered
12

Keep nerding

Based on 458 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.