ON TIMEBOARD

UA 4759 on time

United Airlines 4759: Denver to Sioux Falls at 10:05 a.m. (past 12 months)

On time
88%
362 flights · likely 84–91%
Cancelled
0.8%
of scheduled flights
Typical arrival
−10 min
median vs schedule
When late
+47 min
average delay
Similar flights
87%
UA, same route & hour

About 1 in 8 UA 4759 flights from Denver arrived 15+ minutes late, diverted or cancelled over the past year (12%); 0.8% were cancelled. The typical flight landed 10 minutes early.

UA 4759: DEN → FSD

Scheduled to leave Denver at 10:05 a.m. local time, operated by SkyWest as OO 4759. Over the past year it arrived on time 88% of the time (362 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: 83% on time (30 flights)83SepOct 2025: 93% on time (30 flights)93OctNov 2025: 93% on time (30 flights)93NovDec 2025: 74% on time (31 flights)74DecJan 2026: 94% on time (31 flights)94JanFeb 2026: 100% on time (27 flights)100FebMar 2026: 83% on time (30 flights)83MarApr 2026: 87% on time (30 flights)87AprMay 2026: 87% on time (31 flights)87MayJun 2026: 93% on time (30 flights)93JunJul 2026: 84% on time (31 flights)84JulAug 2026: 87% on time (31 flights)87Aug

By day of week

DayFlightsOn time
Monday5394%
Tuesday5288%
Wednesday5192%
Thursday5186%
Friday5287%
Saturday5287%
Sunday5182%

Why it was late

Airline (crew, maintenance, ops) 37%Late inbound plane 32%Severe weather 16%Air traffic & airport (NAS) 15%

All flights DEN → FSD · Connecting off UA 4759? Check the risk

Questions

How often is UA 4759 from DEN to FSD late?

United Airlines 4759 from Denver, CO to Sioux Falls, SD arrived 15 or more minutes late, was diverted or was cancelled on 12% of 362 scheduled flights between September 2025 and August 2026. 0.8% 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.