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Flight Reliability

UA 3683 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 3683 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
2 min
Average arrival delay
2.2%
Cancelled
9 min early
Median arrival delay

Based on 313 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(47 flights)
  • Tue80%(46 flights)
  • Wed80%(39 flights)
  • Thu85%(41 flights)
  • Fri84%(43 flights)
  • Sat84%(43 flights)
  • Sun77%(47 flights)
On-time by departure window
  • 6–9 AM88%(124 flights)
  • 9 AM–12 PM90%(58 flights)
  • 12–3 PM75%(20 flights)
  • 3–6 PM78%(18 flights)
  • 6–9 PM75%(60 flights)
  • 9 PM–12 AM58%(26 flights)
On-time trend by month
97%
May

Jun 93% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%29
July 202568%19
August 202576%29
September 202591%11
October 202583%30
November 202593%27
December 202573%30
January 202672%29
February 202673%26
March 202673%11
April 202682%34
May 202697%31
Departures on time
87%
Diverted
0%
Flights flown
306
Months covered
12

Keep nerding

Based on 313 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.