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WanderNerd

Flight Reliability

UA 3497 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 3497 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

76%
Arrive within 15 minutes
15 min
Average arrival delay
8.3%
Cancelled
8 min early
Median arrival delay

Based on 339 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(46 flights)
  • Tue81%(43 flights)
  • Wed69%(42 flights)
  • Thu74%(43 flights)
  • Fri67%(51 flights)
  • Sat88%(42 flights)
  • Sun73%(44 flights)
On-time by departure window
  • 6–9 AM94%(16 flights)
  • 9 AM–12 PM80%(40 flights)
  • 12–3 PM72%(43 flights)
  • 3–6 PM74%(193 flights)
  • 6–9 PM(8 flights)
  • 9 PM–12 AM91%(11 flights)
On-time trend by month
83%
May

Jun 67% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%21
July 202573%26
August 202576%42
September 202578%27
October 202577%30
November 202567%24
December 202572%29
January 202690%29
February 202676%25
March 202675%24
May 202683%29
Departures on time
80%
Diverted
0%
Flights flown
311
Months covered
12

Based on 339 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.