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WanderNerd

Flight Reliability

AA 3845 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 3845 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

79%
Arrive within 15 minutes
9 min
Average arrival delay
0.9%
Cancelled
8 min early
Median arrival delay

Based on 341 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(43 flights)
  • Tue98%(42 flights)
  • Wed82%(44 flights)
  • Thu75%(44 flights)
  • Fri64%(44 flights)
  • Sat80%(60 flights)
  • Sun78%(58 flights)
On-time by departure window
  • 3–6 AM80%(10 flights)
  • 6–9 AM(1 flights)
  • 9 AM–12 PM79%(134 flights)
  • 12–3 PM78%(150 flights)
  • 3–6 PM93%(14 flights)
  • 6–9 PM71%(24 flights)
  • 9 PM–12 AM(2 flights)
On-time trend by month
90%
May

Jun 36% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202536%14
July 202579%14
August 202580%30
September 202587%30
October 202577%30
January 202674%50
February 202686%56
March 202678%60
April 202667%12
May 202690%38
Departures on time
81%
Diverted
0.9%
Flights flown
335
Months covered
11

Based on 341 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.