About 1 in 6 UA 5488 flights from Denver arrived 15+ minutes late, diverted or cancelled over the past year (16%); 2.6% were cancelled. The typical flight landed 10 minutes early.
UA 5488: DEN → GJT
Scheduled to leave Denver at 1:25 p.m. local time, operated by SkyWest as OO 5488. Over the past year it arrived on time 84% of the time (346 flights), in line with other UA flights on the route at that hour (84%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 51 | 88% |
| Tuesday | 49 | 78% |
| Wednesday | 49 | 88% |
| Thursday | 49 | 86% |
| Friday | 49 | 73% |
| Saturday | 50 | 84% |
| Sunday | 49 | 90% |
Why it was late
All flights DEN → GJT · Connecting off UA 5488? Check the risk
Questions
How often is UA 5488 from DEN to GJT late?
United Airlines 5488 from Denver, CO to Grand Junction, CO arrived 15 or more minutes late, was diverted or was cancelled on 16% of 346 scheduled flights between September 2025 and August 2026. 2.6% 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.