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Flight Reliability

AA 3858 · American Airlines

Tallahassee → Miami (TLH–MIA)

97
Nerd Approved
WanderNerd Reliability Score
93%
Arrive within 15 minutes
5 min
Average arrival delay
0.6%
Cancelled
6 min early
Median arrival delay

Based on 361 historical flights. Data through May 2026.

What the data says

Sunday scaries are real for this one.

AA 3858 arrived on time 96% of the time on Wednesdays. On Sundays: 89%.

Better than the TLH–MIA route average.

AA 3858 arrived on time 93% of the time, versus 82% across the TLH–MIA route.

Well ahead of the American Airlines network.

AA 3858 arrived on time 93% of the time, versus 77% across the American Airlines network.

Ticking up lately.

AA 3858 arrived on time 94% of the time over the last three months in the data, compared with 90% in the three months before that.

The breakdown

On-time by weekday
  • Mon90%(51 flights)
  • Tue94%(49 flights)
  • Wed96%(51 flights)
  • Thu94%(51 flights)
  • Fri94%(52 flights)
  • Sat92%(52 flights)
  • Sun89%(52 flights)
On-time by departure window
  • 3–6 AM94%(18 flights)
  • 6–9 AM93%(340 flights)
On-time trend by month
100%
May

Jun 97% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%30
July 2025100%31
August 202594%31
September 202590%30
October 202594%31
November 202587%30
December 202583%30
January 202697%29
February 202689%28
March 202682%28
April 2026100%30
May 2026100%30
Departures on time
93%
Diverted
0.3%
Flights flown
358
Months covered
12

Same route, other flights

Keep nerding

Based on 361 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.