ON TIMEBOARD

UA 498 on time

United Airlines 498: Denver to Portland at 7:25 p.m. (past 12 months)

On time
77%
364 flights · likely 73–81%
Cancelled
0.3%
of scheduled flights
Typical arrival
+1 min
median vs schedule
When late
+53 min
average delay
Similar flights
77%
UA, same route & hour

About 1 in 4 UA 498 flights from Denver arrived 15+ minutes late, diverted or cancelled over the past year (23%); 0.3% were cancelled. The typical flight landed 1 minutes late.

UA 498: DEN → PDX

Scheduled to leave Denver at 7:25 p.m. local time. Over the past year it arrived on time 77% of the time (364 flights), in line with other UA flights on the route at that hour (77%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 83% on time (30 flights)83SepOct 2025: 74% on time (31 flights)74OctNov 2025: 83% on time (29 flights)83NovDec 2025: 81% on time (31 flights)81DecJan 2026: 81% on time (31 flights)81JanFeb 2026: 89% on time (28 flights)89FebMar 2026: 81% on time (31 flights)81MarApr 2026: 97% on time (30 flights)97AprMay 2026: 87% on time (31 flights)87MayJun 2026: 60% on time (30 flights)60JunJul 2026: 61% on time (31 flights)61JulAug 2026: 52% on time (31 flights)52Aug

By day of week

DayFlightsOn time
Monday5375%
Tuesday5277%
Wednesday5281%
Thursday5176%
Friday5277%
Saturday5279%
Sunday5275%

Why it was late

Late inbound plane 69%Airline (crew, maintenance, ops) 15%Air traffic & airport (NAS) 15%

All flights DEN → PDX · Connecting off UA 498? Check the risk

Questions

How often is UA 498 from DEN to PDX late?

United Airlines 498 from Denver, CO to Portland, OR arrived 15 or more minutes late, was diverted or was cancelled on 23% of 364 scheduled flights between September 2025 and August 2026. 0.3% 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.