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Flight Reliability

UA 3680 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 3680 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

84%
Arrive within 15 minutes
1 min early
Average arrival delay
3.0%
Cancelled
12 min early
Median arrival delay

Based on 367 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon85%(52 flights)
  • Tue87%(47 flights)
  • Wed77%(48 flights)
  • Thu80%(51 flights)
  • Fri87%(55 flights)
  • Sat85%(46 flights)
  • Sun86%(56 flights)
On-time by departure window
  • 6–9 AM89%(160 flights)
  • 9 AM–12 PM94%(18 flights)
  • 12–3 PM97%(31 flights)
  • 3–6 PM62%(58 flights)
  • 6–9 PM88%(17 flights)
  • 9 PM–12 AM82%(71 flights)
On-time trend by month
86%
May

Jun 96% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202596%26
July 202590%31
August 202596%25
September 202596%26
October 202596%24
November 202581%26
December 202590%30
January 202673%15
February 2026100%17
March 202658%55
April 202679%58
May 202686%22
Departures on time
85%
Diverted
0.3%
Flights flown
355
Months covered
12

Keep nerding

Based on 367 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.