ON TIMEBOARD

UA 5817 on time

United Airlines 5817: Denver to Durango at 3:45 p.m. (past 12 months)

On time
73%
363 flights · likely 68–77%
Cancelled
3.3%
of scheduled flights
Typical arrival
−5 min
median vs schedule
When late
+61 min
average delay
Similar flights
73%
UA, same route & hour

About 1 in 4 UA 5817 flights from Denver arrived 15+ minutes late, diverted or cancelled over the past year (27%); 3.3% were cancelled. The typical flight landed 5 minutes early.

UA 5817: DEN → DRO

Scheduled to leave Denver at 3:45 p.m. local time, operated by SkyWest as OO 5817. Over the past year it arrived on time 73% of the time (363 flights), in line with other UA flights on the route at that hour (73%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 83% on time (30 flights)83SepOct 2025: 81% on time (31 flights)81OctNov 2025: 66% on time (29 flights)66NovDec 2025: 77% on time (31 flights)77DecJan 2026: 77% on time (31 flights)77JanFeb 2026: 75% on time (28 flights)75FebMar 2026: 74% on time (31 flights)74MarApr 2026: 80% on time (30 flights)80AprMay 2026: 71% on time (31 flights)71MayJun 2026: 70% on time (30 flights)70JunJul 2026: 63% on time (30 flights)63JulAug 2026: 55% on time (31 flights)55Aug

By day of week

DayFlightsOn time
Monday5374%
Tuesday5285%
Wednesday5277%
Thursday5169%
Friday5262%
Saturday5175%
Sunday5269%

Why it was late

Airline (crew, maintenance, ops) 34%Late inbound plane 27%Air traffic & airport (NAS) 21%Severe weather 19%

All flights DEN → DRO · Connecting off UA 5817? Check the risk

Questions

How often is UA 5817 from DEN to DRO late?

United Airlines 5817 from Denver, CO to Durango, CO arrived 15 or more minutes late, was diverted or was cancelled on 27% of 363 scheduled flights between September 2025 and August 2026. 3.3% 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.