ON TIMEBOARD

UA 5978 on time

United Airlines 5978: Denver to Fresno at 3:45 p.m. (past 12 months)

On time
87%
317 flights · likely 83–90%
Cancelled
0.0%
of scheduled flights
Typical arrival
−10 min
median vs schedule
When late
+76 min
average delay
Similar flights
86%
UA, same route & hour

About 1 in 8 UA 5978 flights from Denver arrived 15+ minutes late, diverted or cancelled over the past year (13%); 0.0% were cancelled. The typical flight landed 10 minutes early.

UA 5978: DEN → FAT

Scheduled to leave Denver at 3:45 p.m. local time, operated by SkyWest as OO 5978. Over the past year it arrived on time 87% of the time (317 flights), in line with other UA flights on the route at that hour (86%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Aug 2025: 81% on time (31 flights)81AugSep 2025: 90% on time (30 flights)90SepOct 2025: 97% on time (31 flights)97OctNov 2025: 97% on time (29 flights)97NovDec 2025: 74% on time (31 flights)74DecJan 2026: 90% on time (31 flights)90JanFeb 2026: 82% on time (28 flights)82FebMar 2026: 97% on time (31 flights)97MarApr 2026: 87% on time (30 flights)87AprMay 2026: 87% on time (31 flights)87MayJun 2026: 75% on time (24 flights)75JunAug 2026: 76% on time (21 flights)76Aug

By day of week

DayFlightsOn time
Monday4683%
Tuesday4691%
Wednesday4687%
Thursday4493%
Friday4584%
Saturday4584%
Sunday4587%

Why it was late

Late inbound plane 37%Airline (crew, maintenance, ops) 35%Air traffic & airport (NAS) 26%Severe weather 2%

All flights DEN → FAT · Connecting off UA 5978? Check the risk

Questions

How often is UA 5978 from DEN to FAT late?

United Airlines 5978 from Denver, CO to Fresno, CA arrived 15 or more minutes late, was diverted or was cancelled on 13% of 317 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.