Flight OddsUA635 ONT → DEN
United Airlines · Ontario, CA to Denver, CO · 15 flights observed, 2025-07-01 to 2025-07-29 · 819 mi
UA635 covers more than one route in the data window — the stats below are for ONT → DEN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
53%
Median delay
-2 min
90th percentile
+69 min
Cancellation rate
0%
How often is UA635 on time?
Across 15 flights on ONT → DEN from 2025-07-01 to 2025-07-29, UA635 arrived within 15 minutes of schedule 53% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +69 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 8 | 53% |
| 16-30 min | 3 | 20% |
| 31-60 min | 2 | 13% |
| 61-120 min | 1 | 7% |
| 2+ hrs | 1 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 15 | 53% | +17 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 25% |
| Tue | 5 | 60% |
| Wed | No data | — |
| Thu | No data | — |
| Fri | 3 | 67% |
| Sat | 3 | 67% |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…