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Flight Reliability

UA 1686 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1686 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

80%
Arrive within 15 minutes
8 min
Average arrival delay
0.3%
Cancelled
5 min early
Median arrival delay

Based on 648 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon78%(94 flights)
  • Tue76%(90 flights)
  • Wed81%(91 flights)
  • Thu80%(91 flights)
  • Fri75%(85 flights)
  • Sat87%(97 flights)
  • Sun82%(95 flights)
On-time by departure window
  • 3–6 AM97%(37 flights)
  • 6–9 AM97%(61 flights)
  • 9 AM–12 PM83%(364 flights)
  • 12–3 PM69%(134 flights)
  • 3–6 PM53%(47 flights)
On-time trend by month
88%
May

Jun 70% → May 88% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%54
July 202558%31
August 202587%31
September 202585%34
October 202579%63
November 202566%58
December 202581%58
January 202683%40
February 202693%28
March 202687%75
April 202680%89
May 202688%82
Departures on time
85%
Diverted
0.5%
Flights flown
643
Months covered
12

Keep nerding

Based on 648 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.