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Flight Reliability

AA 4818 · American Airlines

SGU → Dallas–Fort Worth (SGU–DFW)

75
Usually Fine
WanderNerd Reliability Score
73%
Arrive within 15 minutes
13 min
Average arrival delay
0.3%
Cancelled
4 min early
Median arrival delay

Based on 353 historical flights. Data through May 2026.

What the data says

Saturdays have been rough.

AA 4818 arrived on time 89% of the time on Fridays and just 60% on Saturdays. That gap is worth planning around.

Lagging the SGU–DFW route.

AA 4818 arrived on time 73% of the time, versus 83% across the SGU–DFW route.

A bit behind the American Airlines network.

AA 4818 arrived on time 73% of the time, versus 77% across the American Airlines network.

It basically never cancels.

Out of 353 scheduled flights, only 0.3% were cancelled.

The breakdown

On-time by weekday
  • Mon71%(49 flights)
  • Tue72%(50 flights)
  • Wed74%(50 flights)
  • Thu71%(51 flights)
  • Fri89%(52 flights)
  • Sat60%(45 flights)
  • Sun73%(52 flights)
On-time trend by month
74%
May

Jun 46% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202546%26
July 202570%30
August 202587%30
September 202587%30
October 202577%31
November 202576%29
December 202571%31
January 202667%30
February 202664%28
March 202681%31
April 202673%26
May 202674%27
Departures on time
72%
Diverted
0.8%
Flights flown
349
Months covered
12

Same route, other flights

Keep nerding

Based on 353 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.