ON TIMEBOARD

UA 5018 on time

United Airlines 5018: Denver to Riverton at 9:04 p.m. (past 12 months)

On time
78%
363 flights · likely 73–82%
Cancelled
1.1%
of scheduled flights
Typical arrival
−8 min
median vs schedule
When late
+116 min
average delay
Similar flights
83%
UA, same route & hour

About 1 in 4 UA 5018 flights from Denver arrived 15+ minutes late, diverted or cancelled over the past year (22%); 1.1% were cancelled. The typical flight landed 8 minutes early.

UA 5018: DEN → RIW

Scheduled to leave Denver at 9:04 p.m. local time, operated by SkyWest as OO 5018. Over the past year it arrived on time 78% of the time (363 flights), worse than other UA flights on the route at that hour (83%). Last seen in the data Aug 31, 2026.

Usually United Airlines's last flight of the day from Denver to Riverton (100% of days). United Airlines's last DEN–RIW flight was cancelled 1.1% of the time, against 0.5% for its earlier ones. If it's cancelled, the next United Airlines flight is usually around 12:15 p.m. the next morning.

Month by month

40%70%100%Sep 2025: 83% on time (30 flights)83SepOct 2025: 87% on time (31 flights)87OctNov 2025: 93% on time (29 flights)93NovDec 2025: 90% on time (30 flights)90DecJan 2026: 74% on time (31 flights)74JanFeb 2026: 82% on time (28 flights)82FebMar 2026: 94% on time (31 flights)94MarApr 2026: 77% on time (30 flights)77AprMay 2026: 77% on time (31 flights)77MayJun 2026: 63% on time (30 flights)63JunJul 2026: 58% on time (31 flights)58JulAug 2026: 55% on time (31 flights)55Aug

By day of week

DayFlightsOn time
Monday5379%
Tuesday5281%
Wednesday5176%
Thursday5180%
Friday5260%
Saturday5288%
Sunday5279%

Why it was late

Late inbound plane 58%Airline (crew, maintenance, ops) 24%Air traffic & airport (NAS) 13%Severe weather 5%

All flights DEN → RIW · Connecting off UA 5018? Check the risk

Questions

How often is UA 5018 from DEN to RIW late?

United Airlines 5018 from Denver, CO to Riverton/Lander, WY arrived 15 or more minutes late, was diverted or was cancelled on 22% of 363 scheduled flights between September 2025 and August 2026. 1.1% 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.