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Flight Reliability

AA 4738 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 4738 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

78%
Arrive within 15 minutes
7 min
Average arrival delay
3.5%
Cancelled
6 min early
Median arrival delay

Based on 572 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon79%(82 flights)
  • Tue77%(85 flights)
  • Wed88%(84 flights)
  • Thu66%(84 flights)
  • Fri81%(84 flights)
  • Sat90%(62 flights)
  • Sun70%(70 flights)
On-time by departure window
  • 6–9 AM89%(53 flights)
  • 9 AM–12 PM78%(439 flights)
  • 12–3 PM80%(30 flights)
  • 3–6 PM63%(24 flights)
  • 9 PM–12 AM—(5 flights)
On-time trend by month
85%
May

Jun 78% → May 85% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202578%50
July 202583%54
August 202594%48
October 202565%23
November 202582%54
December 202565%46
January 202664%44
February 202669%49
March 202675%56
April 202686%59
May 202685%60
Departures on time
79%
Diverted
0.2%
Flights flown
551
Months covered
12

Keep nerding

Based on 572 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.