About 1 in 7 UA 5554 flights from Denver arrived 15+ minutes late, diverted or cancelled over the past year (15%); 0.0% were cancelled. The typical flight landed 7 minutes early.
UA 5554: DEN → SUN
Scheduled to leave Denver at 11:30 a.m. local time, operated by SkyWest as OO 5554. Over the past year it arrived on time 85% of the time (362 flights), in line with other UA flights on the route at that hour (85%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 85% |
| Tuesday | 51 | 92% |
| Wednesday | 51 | 78% |
| Thursday | 51 | 86% |
| Friday | 52 | 88% |
| Saturday | 52 | 88% |
| Sunday | 52 | 75% |
Why it was late
All flights DEN → SUN · Connecting off UA 5554? Check the risk
Questions
How often is UA 5554 from DEN to SUN late?
United Airlines 5554 from Denver, CO to Sun Valley/Hailey/Ketchum, ID arrived 15 or more minutes late, was diverted or was cancelled on 15% of 362 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.