ON TIMEBOARD

UA 1836 on time

United Airlines 1836: Denver to Milwaukee at 9:57 a.m. (past 12 months)

On time
85%
364 flights · likely 81–89%
Cancelled
0.0%
of scheduled flights
Typical arrival
−8 min
median vs schedule
When late
+43 min
average delay
Similar flights
91%
UA, same route & hour

About 1 in 7 UA 1836 flights from Denver arrived 15+ minutes late, diverted or cancelled over the past year (15%); 0.0% were cancelled. The typical flight landed 8 minutes early.

UA 1836: DEN → MKE

Scheduled to leave Denver at 9:57 a.m. local time. Over the past year it arrived on time 85% of the time (364 flights), worse than other UA flights on the route at that hour (91%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 80% on time (30 flights)80SepOct 2025: 90% on time (31 flights)90OctNov 2025: 97% on time (30 flights)97NovDec 2025: 87% on time (31 flights)87DecJan 2026: 81% on time (31 flights)81JanFeb 2026: 89% on time (28 flights)89FebMar 2026: 77% on time (31 flights)77MarApr 2026: 90% on time (30 flights)90AprMay 2026: 84% on time (31 flights)84MayJun 2026: 90% on time (30 flights)90JunJul 2026: 87% on time (30 flights)87JulAug 2026: 74% on time (31 flights)74Aug

By day of week

DayFlightsOn time
Monday5387%
Tuesday5288%
Wednesday5287%
Thursday5292%
Friday5275%
Saturday5186%
Sunday5283%

Why it was late

Late inbound plane 45%Airline (crew, maintenance, ops) 35%Air traffic & airport (NAS) 20%

All flights DEN → MKE · Connecting off UA 1836? Check the risk

Questions

How often is UA 1836 from DEN to MKE late?

United Airlines 1836 from Denver, CO to Milwaukee, WI arrived 15 or more minutes late, was diverted or was cancelled on 15% of 364 scheduled flights between September 2025 and August 2026. 0.0% 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.