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WanderNerd

Flight Reliability

UA 1586 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1586 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

86%
Arrive within 15 minutes
4 min
Average arrival delay
0.5%
Cancelled
6 min early
Median arrival delay

Based on 408 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(60 flights)
  • Tue87%(53 flights)
  • Wed88%(59 flights)
  • Thu80%(61 flights)
  • Fri85%(60 flights)
  • Sat87%(52 flights)
  • Sun90%(61 flights)
On-time by departure window
  • 6–9 AM91%(56 flights)
  • 9 AM–12 PM85%(333 flights)
  • 12–3 PM77%(17 flights)
On-time trend by month
76%
May

Jun 87% → May 76% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%30
July 202584%31
August 202571%31
September 202597%30
October 202589%37
November 202597%59
December 202588%32
January 202682%28
February 202689%28
March 202685%41
April 202673%30
May 202676%29
Departures on time
88%
Diverted
0%
Flights flown
406
Months covered
12

Based on 408 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.