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Flight Reliability

AA 3863 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 3863 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

85%
Arrive within 15 minutes
1 min
Average arrival delay
1.7%
Cancelled
8 min early
Median arrival delay

Based on 461 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon85%(60 flights)
  • Tue88%(57 flights)
  • Wed84%(56 flights)
  • Thu84%(69 flights)
  • Fri85%(71 flights)
  • Sat91%(65 flights)
  • Sun77%(73 flights)
On-time by departure window
  • 9 AM–12 PM89%(200 flights)
  • 12–3 PM85%(85 flights)
  • 3–6 PM86%(91 flights)
  • 6–9 PM76%(42 flights)
  • 9 PM–12 AM67%(33 flights)
On-time trend by month
58%
Apr

Jun 86% → Apr 58% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202586%56
July 202579%62
August 202584%61
September 2025100%60
October 202591%21
November 202576%21
December 202569%26
January 202693%30
February 202693%42
March 202677%60
April 202658%12
Departures on time
85%
Diverted
0.4%
Flights flown
451
Months covered
11

Keep nerding

Based on 461 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.