ON TIMEBOARD

UA 586 on time

United Airlines 586: Denver to Kansas City at 1:40 p.m. (past 12 months)

On time
87%
363 flights · likely 83–90%
Cancelled
0.3%
of scheduled flights
Typical arrival
−8 min
median vs schedule
When late
+53 min
average delay
Similar flights
87%
UA, same route & hour

About 1 in 8 UA 586 flights from Denver arrived 15+ minutes late, diverted or cancelled over the past year (13%); 0.3% were cancelled. The typical flight landed 8 minutes early.

UA 586: DEN → MCI

Scheduled to leave Denver at 1:40 p.m. local time. Over the past year it arrived on time 87% of the time (363 flights), in line with other UA flights on the route at that hour (87%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 87% on time (30 flights)87SepOct 2025: 94% on time (31 flights)94OctNov 2025: 86% on time (29 flights)86NovDec 2025: 84% on time (31 flights)84DecJan 2026: 81% on time (31 flights)81JanFeb 2026: 86% on time (28 flights)86FebMar 2026: 84% on time (31 flights)84MarApr 2026: 93% on time (30 flights)93AprMay 2026: 77% on time (31 flights)77MayJun 2026: 97% on time (30 flights)97JunJul 2026: 83% on time (30 flights)83JulAug 2026: 90% on time (31 flights)90Aug

By day of week

DayFlightsOn time
Monday5392%
Tuesday5290%
Wednesday5283%
Thursday5186%
Friday5283%
Saturday5188%
Sunday5285%

Why it was late

Late inbound plane 44%Airline (crew, maintenance, ops) 38%Air traffic & airport (NAS) 17%Severe weather 1%

All flights DEN → MCI · Connecting off UA 586? Check the risk

Questions

How often is UA 586 from DEN to MCI late?

United Airlines 586 from Denver, CO to Kansas City, MO arrived 15 or more minutes late, was diverted or was cancelled on 13% of 363 scheduled flights between September 2025 and August 2026. 0.3% were cancelled.

Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check United Airlines for today's flight. Method.