Skip to content
WanderNerd
Check a flight

Flight Reliability

AA 1020 · American Airlines

Detroit → Miami (DTW–MIA)

92
Nerd Approved
WanderNerd Reliability Score
91%
Arrive within 15 minutes
2 min early
Average arrival delay
1.4%
Cancelled
8 min early
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

Saturday is the weak spot.

AA 1020 arrived on time 98% of the time on Tuesdays. On Saturdays: 87%.

Better than the DTW–MIA route average.

AA 1020 arrived on time 91% of the time, versus 80% across the DTW–MIA route.

Better than the American Airlines network average.

AA 1020 arrived on time 91% of the time, versus 77% across the American Airlines network.

Trending in the right direction.

AA 1020 arrived on time 94% of the time over the last three months in the data, compared with 84% in the three months before that.

The breakdown

On-time by weekday
  • Mon92%(49 flights)
  • Tue98%(50 flights)
  • Wed90%(52 flights)
  • Thu92%(52 flights)
  • Fri92%(51 flights)
  • Sat87%(52 flights)
  • Sun87%(53 flights)
On-time by departure window
  • 3–6 AM89%(54 flights)
  • 6–9 AM92%(305 flights)
On-time trend by month
100%
May

Jun 100% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%29
July 202590%30
August 202594%31
September 202590%30
October 202594%31
November 202590%30
December 202584%31
January 202679%29
February 202689%27
March 202687%30
April 202697%30
May 2026100%31
Departures on time
95%
Diverted
0.3%
Flights flown
359
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.