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Flight Reliability

AA 3820 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 3820 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

84%
Arrive within 15 minutes
2 min early
Average arrival delay
1.2%
Cancelled
9 min early
Median arrival delay

Based on 496 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon88%(72 flights)
  • Tue88%(74 flights)
  • Wed85%(66 flights)
  • Thu80%(71 flights)
  • Fri93%(71 flights)
  • Sat74%(62 flights)
  • Sun78%(72 flights)
On-time by departure window
  • 6–9 AM87%(15 flights)
  • 9 AM–12 PM80%(61 flights)
  • 12–3 PM86%(234 flights)
  • 3–6 PM82%(178 flights)
On-time trend by month
81%
May

Jun 85% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202585%26
July 202579%24
August 202577%30
October 202580%50
November 202580%54
December 202577%57
January 202686%58
February 202694%52
March 202693%60
April 202682%33
May 202681%42
Departures on time
83%
Diverted
0.4%
Flights flown
488
Months covered
12

Keep nerding

Based on 496 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.