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Flight Reliability

AA 1921 · American Airlines

Miami → Tampa (MIA–TPA)87% of its flights flew this route. The rest (DCA–JAX) are included in these numbers.

57
A Little Dicey
WanderNerd Reliability Score
62%
Arrive within 15 minutes
32 min
Average arrival delay
0.5%
Cancelled
2 min
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

AA 1921 departing between 3–6 PM arrived on time 77% of the time, versus 59% between 6–9 PM.

Mondays have been rough.

AA 1921 arrived on time 71% of the time on Wednesdays and just 54% on Mondays. That gap is worth planning around.

Lagging the MIA–TPA route.

AA 1921 arrived on time 62% of the time, versus 71% across the MIA–TPA route.

Lagging the American Airlines network.

AA 1921 arrived on time 62% of the time, versus 77% across the American Airlines network.

The breakdown

On-time by weekday
  • Mon54%(52 flights)
  • Tue65%(51 flights)
  • Wed71%(52 flights)
  • Thu64%(52 flights)
  • Fri60%(52 flights)
  • Sat64%(52 flights)
  • Sun56%(52 flights)
On-time by departure window
  • 12–3 PM—(4 flights)
  • 3–6 PM77%(44 flights)
  • 6–9 PM59%(315 flights)
On-time trend by month
68%
May

Jun 63% → May 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202563%30
July 202545%31
August 202552%31
September 202577%30
October 202561%31
November 202580%30
December 202555%31
January 202663%30
February 202664%28
March 202640%30
April 202673%30
May 202668%31
Departures on time
62%
Diverted
0%
Flights flown
363
Months covered
12

Same route, other flights

Keep nerding

Based on 365 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.