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Flight Reliability

AA 3742 · American Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AA 3742 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

77%
Arrive within 15 minutes
1 min
Average arrival delay
1.1%
Cancelled
11 min early
Median arrival delay

Based on 261 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon84%(43 flights)
  • Tue90%(39 flights)
  • Wed90%(38 flights)
  • Thu68%(38 flights)
  • Fri74%(42 flights)
  • Sat83%(23 flights)
  • Sun52%(33 flights)
On-time by departure window
  • 6–9 AM94%(36 flights)
  • 9 AM–12 PM95%(21 flights)
  • 12–3 PM—(8 flights)
  • 3–6 PM79%(68 flights)
  • 6–9 PM56%(32 flights)
  • 9 PM–12 AM75%(91 flights)
On-time trend by month
75%
May

Jul 92% → May 75% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
July 202592%37
August 2025100%17
November 202578%23
December 202565%26
January 202659%27
February 202673%26
March 202671%31
April 202683%30
May 202675%36
Departures on time
77%
Diverted
0.8%
Flights flown
256
Months covered
11

Keep nerding

Based on 261 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.