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Flight Reliability

AA 4811 · American Airlines

Phoenix → SGU (PHX–SGU)

89
Pretty Reliable
WanderNerd Reliability Score
81%
Arrive within 15 minutes
6 min
Average arrival delay
0%
Cancelled
4 min early
Median arrival delay

Based on 364 historical flights. Data through May 2026.

What the data says

Skip Monday if you can.

AA 4811 arrived on time 85% of the time on Sundays. On Mondays: 77%.

A bit behind the PHX–SGU route.

AA 4811 arrived on time 81% of the time, versus 85% across the PHX–SGU route.

A bit ahead of the American Airlines network.

AA 4811 arrived on time 81% of the time, versus 77% across the American Airlines network.

It basically never cancels.

Out of 364 scheduled flights, only 0.0% were cancelled.

The breakdown

On-time by weekday
  • Mon77%(52 flights)
  • Tue80%(51 flights)
  • Wed81%(52 flights)
  • Thu83%(52 flights)
  • Fri85%(52 flights)
  • Sat79%(52 flights)
  • Sun85%(53 flights)
On-time by departure window
  • 6–9 AM82%(271 flights)
  • 9 AM–12 PM81%(93 flights)
On-time trend by month
74%
May

Jun 77% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%30
July 202584%31
August 202587%30
September 202580%30
October 202577%31
November 202580%30
December 202581%31
January 202684%31
February 202686%28
March 202684%31
April 202683%30
May 202674%31
Departures on time
87%
Diverted
0%
Flights flown
364
Months covered
12

Same route, other flights

Keep nerding

Based on 364 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.