ON TIMEBOARD

UA 4650 on time

United Airlines 4650: Denver to Colorado Springs at 9:05 p.m. (past 12 months)

On time
75%
322 flights · likely 70–80%
Cancelled
1.2%
of scheduled flights
Typical arrival
−6 min
median vs schedule
When late
+73 min
average delay
Similar flights
76%
UA, same route & hour

About 1 in 4 UA 4650 flights from Denver arrived 15+ minutes late, diverted or cancelled over the past year (25%); 1.2% were cancelled. The typical flight landed 6 minutes early.

UA 4650: DEN → COS

Scheduled to leave Denver at 9:05 p.m. local time, operated by SkyWest as OO 4650. Over the past year it arrived on time 75% of the time (322 flights), in line with other UA flights on the route at that hour (76%). Last seen in the data Aug 31, 2026.

Month by month

30%65%100%Aug 2025: 39% on time (31 flights)39AugSep 2025: 58% on time (26 flights)58SepOct 2025: 80% on time (25 flights)80OctDec 2025: 79% on time (29 flights)79DecJan 2026: 77% on time (31 flights)77JanFeb 2026: 86% on time (28 flights)86FebMar 2026: 84% on time (31 flights)84MarApr 2026: 80% on time (30 flights)80AprMay 2026: 71% on time (31 flights)71MayJun 2026: 80% on time (30 flights)80JunJul 2026: 73% on time (30 flights)73JulAug 2026: 58% on time (31 flights)58Aug

By day of week

DayFlightsOn time
Monday4772%
Tuesday4386%
Wednesday4785%
Thursday4676%
Friday4768%
Saturday4674%
Sunday4665%

Why it was late

Air traffic & airport (NAS) 42%Airline (crew, maintenance, ops) 28%Late inbound plane 21%Severe weather 9%

All flights DEN → COS · Connecting off UA 4650? Check the risk

Questions

How often is UA 4650 from DEN to COS late?

United Airlines 4650 from Denver, CO to Colorado Springs, CO arrived 15 or more minutes late, was diverted or was cancelled on 25% of 322 scheduled flights between September 2025 and August 2026. 1.2% 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.