Flight OddsUA1660 PDX → SFO
United Airlines · Portland, OR to San Francisco, CA · 105 flights observed, 2025-08-19 to 2025-12-01 · 550 mi
UA1660 covers more than one route in the data window — the stats below are for PDX → SFO, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
60%
Median delay
+6 min
90th percentile
+42 min
Cancellation rate
2%
How often is UA1660 on time?
Across 105 flights on PDX → SFO from 2025-08-19 to 2025-12-01, UA1660 arrived within 15 minutes of schedule 60% of the time. The median arrival delay was +6 min, and the worst 10% of flights arrived +42 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 62 | 60% |
| 16-30 min | 25 | 24% |
| 31-60 min | 12 | 12% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 4 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 12 | 75% | +4 min |
| 2025-09 | 30 | 53% | +12 min |
| 2025-10 | 31 | 74% | +7 min |
| 2025-11 | 29 | 48% | +31 min |
| 2025-12 | 1 | 0% | +18 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 15 | 53% |
| Tue | 15 | 73% |
| Wed | 15 | 47% |
| Thu | 15 | 47% |
| Fri | 15 | 53% |
| Sat | 13 | 85% |
| Sun | 15 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…