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Flight Reliability

AA 4815 · American Airlines

Phoenix → SGU (PHX–SGU)

92
Nerd Approved
WanderNerd Reliability Score
88%
Arrive within 15 minutes
7 min
Average arrival delay
0.3%
Cancelled
8 min early
Median arrival delay

Based on 340 historical flights. Data through May 2026.

What the data says

Sunday scaries are real for this one.

AA 4815 arrived on time 94% of the time on Tuesdays. On Sundays: 85%.

Better than the American Airlines network average.

AA 4815 arrived on time 88% of the time, versus 77% across the American Airlines network.

It basically never cancels.

Out of 340 scheduled flights, only 0.3% were cancelled.

Slipping a little lately.

AA 4815 arrived on time 85% 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
  • Mon87%(52 flights)
  • Tue94%(46 flights)
  • Wed87%(46 flights)
  • Thu88%(49 flights)
  • Fri87%(46 flights)
  • Sat87%(45 flights)
  • Sun85%(53 flights)
On-time by departure window
  • 6–9 PM88%(103 flights)
  • 9 PM–12 AM87%(234 flights)
On-time trend by month
100%
May

Jun 90% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%30
July 202574%31
August 202587%31
September 202592%13
October 202596%27
November 202593%30
December 202597%31
January 202680%30
February 202693%27
March 202671%31
April 202683%30
May 2026100%26
Departures on time
86%
Diverted
0.6%
Flights flown
337
Months covered
12

Same route, other flights

Keep nerding

Based on 340 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.