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WanderNerd

Flight Reliability

AA 4938 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 4938 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

80%
Arrive within 15 minutes
8 min
Average arrival delay
1.4%
Cancelled
7 min early
Median arrival delay

Based on 357 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon85%(52 flights)
  • Tue85%(46 flights)
  • Wed72%(50 flights)
  • Thu77%(48 flights)
  • Fri85%(52 flights)
  • Sat74%(50 flights)
  • Sun79%(53 flights)
On-time by departure window
  • 6–9 AM78%(147 flights)
  • 9 AM–12 PM64%(28 flights)
  • 12–3 PM68%(31 flights)
  • 3–6 PM83%(108 flights)
  • 9 PM–12 AM95%(37 flights)
On-time trend by month
85%
May

Jun 70% → May 85% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%33
July 202570%30
August 202580%30
September 202593%30
October 202568%31
November 202570%27
December 202552%27
January 202687%31
February 202693%28
March 202697%31
April 202689%26
May 202685%27
Departures on time
80%
Diverted
0.3%
Flights flown
351
Months covered
12

Based on 357 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.