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Flight Reliability

UA 686 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 686 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
4 min
Average arrival delay
1.1%
Cancelled
10 min early
Median arrival delay

Based on 476 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(70 flights)
  • Tue81%(69 flights)
  • Wed81%(69 flights)
  • Thu84%(70 flights)
  • Fri87%(70 flights)
  • Sat83%(54 flights)
  • Sun79%(67 flights)
On-time by departure window
  • 6–9 AM90%(285 flights)
  • 12–3 PM77%(130 flights)
  • 3–6 PM—(7 flights)
  • 6–9 PM50%(44 flights)
  • 9 PM–12 AM—(3 flights)
On-time trend by month
79%
May

Jun 77% → May 79% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%30
July 202587%30
August 202583%42
September 202594%31
October 202587%30
November 202593%30
December 202577%31
January 202693%30
February 202675%28
March 202677%35
April 202676%82
May 202679%70
Departures on time
83%
Diverted
0.4%
Flights flown
469
Months covered
12

Keep nerding

Based on 476 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.