ON TIMEBOARD

UA 549 on time

United Airlines 549: Denver to Des Moines at 5:40 p.m. (past 12 months)

On time
67%
155 flights · likely 59–74%
Cancelled
0.7%
of scheduled flights
Typical arrival
−4 min
median vs schedule
When late
+90 min
average delay
Similar flights
71%
UA, same route & hour

About 1 in 3 UA 549 flights from Denver arrived 15+ minutes late, diverted or cancelled over the past year (33%); 0.7% were cancelled. The typical flight landed 4 minutes early.

UA 549: DEN → DSM

Scheduled to leave Denver at 5:40 p.m. local time. Over the past year it arrived on time 67% of the time (155 flights), worse than other UA flights on the route at that hour (71%). Last seen in the data Aug 31, 2026.

Month by month

30%65%100%Mar 2026: too few flights (3 flights)MarApr 2026: 93% on time (30 flights)93AprMay 2026: 74% on time (31 flights)74MayJun 2026: 60% on time (30 flights)60JunJul 2026: 70% on time (30 flights)70JulAug 2026: 35% on time (31 flights)35Aug

By day of week

DayFlightsOn time
Monday2370%
Tuesday2277%
Wednesday2268%
Thursday2264%
Friday2268%
Saturday2152%
Sunday2370%

Why it was late

Late inbound plane 58%Airline (crew, maintenance, ops) 24%Air traffic & airport (NAS) 16%Severe weather 2%

All flights DEN → DSM · Connecting off UA 549? Check the risk

Questions

How often is UA 549 from DEN to DSM late?

United Airlines 549 from Denver, CO to Des Moines, IA arrived 15 or more minutes late, was diverted or was cancelled on 33% of 155 scheduled flights between September 2025 and August 2026. 0.7% 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.