ON TIMEBOARD

UA 5773 on time

United Airlines 5773: Denver to Aspen at 3:35 p.m. (past 12 months)

On time
71%
306 flights · likely 65–75%
Cancelled
6.5%
of scheduled flights
Typical arrival
−9 min
median vs schedule
When late
+91 min
average delay
Similar flights
70%
UA, same route & hour

About 1 in 3 UA 5773 flights from Denver arrived 15+ minutes late, diverted or cancelled over the past year (29%); 6.5% were cancelled. The typical flight landed 9 minutes early.

UA 5773: DEN → ASE

Scheduled to leave Denver at 3:35 p.m. local time, operated by SkyWest as OO 5773. Over the past year it arrived on time 71% of the time (306 flights), in line with other UA flights on the route at that hour (70%). Last seen in the data Aug 31, 2026.

Month by month

30%65%100%Sep 2025: 77% on time (30 flights)77SepOct 2025: 90% on time (31 flights)90OctNov 2025: 79% on time (29 flights)79NovDec 2025: 58% on time (31 flights)58DecJan 2026: 74% on time (31 flights)74JanFeb 2026: 61% on time (28 flights)61FebMar 2026: 81% on time (31 flights)81MarApr 2026: 91% on time (22 flights)91AprMay 2026: too few flights (2 flights)MayJun 2026: too few flights (9 flights)JunJul 2026: 39% on time (31 flights)39JulAug 2026: 61% on time (31 flights)61Aug

By day of week

DayFlightsOn time
Monday4475%
Tuesday4384%
Wednesday4377%
Thursday4267%
Friday4365%
Saturday4858%
Sunday4370%

Why it was late

Late inbound plane 37%Air traffic & airport (NAS) 24%Airline (crew, maintenance, ops) 20%Severe weather 19%

All flights DEN → ASE · Connecting off UA 5773? Check the risk

Questions

How often is UA 5773 from DEN to ASE late?

United Airlines 5773 from Denver, CO to Aspen, CO arrived 15 or more minutes late, was diverted or was cancelled on 29% of 306 scheduled flights between September 2025 and August 2026. 6.5% 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.