Flight OddsUA4657 ASE → SFO
United Airlines · Aspen, CO to San Francisco, CA · 51 flights observed, 2025-07-05 to 2026-02-11 · 848 mi
UA4657 covers more than one route in the data window — the stats below are for ASE → SFO, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
85%
Median delay
-23 min
90th percentile
+31 min
Cancellation rate
6%
How often is UA4657 on time?
Across 51 flights on ASE → SFO from 2025-07-05 to 2026-02-11, UA4657 arrived within 15 minutes of schedule 85% of the time. The median arrival delay was -23 min, and the worst 10% of flights arrived +31 min or later. 6% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 41 | 85% |
| 16-30 min | 2 | 4% |
| 31-60 min | 2 | 4% |
| 61-120 min | 2 | 4% |
| 2+ hrs | 1 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 7 | 71% | +3 min |
| 2025-08 | 6 | 67% | +25 min |
| 2026-01 | 24 | 96% | -26 min |
| 2026-02 | 11 | 82% | -20 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 100% |
| Tue | 6 | 100% |
| Wed | 6 | 83% |
| Thu | 5 | 100% |
| Fri | 5 | 80% |
| Sat | 10 | 80% |
| Sun | 12 | 75% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…