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Flight Reliability

AA 4037 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 4037 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

82%
Arrive within 15 minutes
3 min
Average arrival delay
0.8%
Cancelled
8 min early
Median arrival delay

Based on 360 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon92%(48 flights)
  • Tue87%(45 flights)
  • Wed85%(47 flights)
  • Thu89%(53 flights)
  • Fri75%(51 flights)
  • Sat76%(55 flights)
  • Sun73%(56 flights)
On-time by departure window
  • 3–6 AM98%(42 flights)
  • 6–9 AM84%(37 flights)
  • 9 AM–12 PM78%(18 flights)
  • 12–3 PM79%(180 flights)
  • 3–6 PM—(3 flights)
  • 6–9 PM79%(75 flights)
On-time trend by month
93%
May

Jun 72% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202572%29
July 202590%30
September 202582%56
October 2025100%10
January 202669%51
February 202685%48
March 202677%56
April 202694%35
May 202693%29
Departures on time
83%
Diverted
0.6%
Flights flown
355
Months covered
11

Keep nerding

Based on 360 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.