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Flight Reliability

UA 3585 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 3585 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

79%
Arrive within 15 minutes
10 min
Average arrival delay
3.0%
Cancelled
9 min early
Median arrival delay

Based on 362 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon82%(50 flights)
  • Tue86%(51 flights)
  • Wed75%(51 flights)
  • Thu69%(49 flights)
  • Fri80%(51 flights)
  • Sat78%(50 flights)
  • Sun82%(49 flights)
On-time by departure window
  • 6–9 AM88%(17 flights)
  • 9 AM–12 PM—(5 flights)
  • 12–3 PM82%(87 flights)
  • 3–6 PM76%(223 flights)
  • 6–9 PM—(7 flights)
  • 9 PM–12 AM100%(12 flights)
On-time trend by month
87%
May

Jun 60% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202560%30
July 202554%28
August 202584%37
September 202590%30
October 202587%31
November 202575%28
December 202579%28
January 202679%29
February 202682%22
March 202686%28
April 202683%29
May 202687%31
Departures on time
83%
Diverted
0%
Flights flown
351
Months covered
12

Keep nerding

Based on 362 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.