Skip to content
WanderNerd
Check a flight

Flight Reliability

AA 3856 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 3856 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

82%
Arrive within 15 minutes
2 min
Average arrival delay
2.4%
Cancelled
8 min early
Median arrival delay

Based on 379 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon80%(54 flights)
  • Tue80%(45 flights)
  • Wed79%(61 flights)
  • Thu82%(49 flights)
  • Fri91%(46 flights)
  • Sat83%(64 flights)
  • Sun78%(50 flights)
On-time by departure window
  • 6–9 AM82%(27 flights)
  • 9 AM–12 PM90%(110 flights)
  • 12–3 PM66%(64 flights)
  • 3–6 PM79%(138 flights)
  • 6–9 PM100%(24 flights)
  • 9 PM–12 AM—(6 flights)
On-time trend by month
75%
May

Jun 81% → May 75% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202581%37
July 202569%36
August 202578%32
September 202586%57
October 202592%24
November 202580%25
January 202680%40
February 202689%35
March 202681%31
April 202683%30
May 202675%20
Departures on time
83%
Diverted
0.3%
Flights flown
369
Months covered
12

Keep nerding

Based on 379 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.