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Flight Reliability

AA 3739 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 3739 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

86%
Arrive within 15 minutes
2 min early
Average arrival delay
1.1%
Cancelled
10 min early
Median arrival delay

Based on 285 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon86%(42 flights)
  • Tue91%(45 flights)
  • Wed86%(44 flights)
  • Thu78%(37 flights)
  • Fri82%(44 flights)
  • Sat93%(41 flights)
  • Sun79%(29 flights)
On-time by departure window
  • 6–9 AM90%(89 flights)
  • 9 AM–12 PM76%(95 flights)
  • 12–3 PM94%(17 flights)
  • 3–6 PM85%(13 flights)
  • 6–9 PM—(6 flights)
  • 9 PM–12 AM94%(62 flights)
On-time trend by month
86%
May

Jul 100% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
July 2025100%22
August 202594%17
September 202595%21
October 202593%29
December 202585%13
January 202688%25
February 202689%27
March 202683%53
April 202656%32
May 202686%42
Departures on time
86%
Diverted
0%
Flights flown
282
Months covered
11

Keep nerding

Based on 285 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.