Flight OddsUA644 PDX → SFO
United Airlines · Portland, OR to San Francisco, CA · 38 flights observed, 2025-08-19 to 2025-09-30 · 550 mi
UA644 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
82%
Median delay
-8 min
90th percentile
+45 min
Cancellation rate
0%
How often is UA644 on time?
Across 38 flights on PDX → SFO from 2025-08-19 to 2025-09-30, UA644 arrived within 15 minutes of schedule 82% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +45 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 | 31 | 82% |
| 16-30 min | 2 | 5% |
| 31-60 min | 1 | 3% |
| 61-120 min | 2 | 5% |
| 2+ hrs | 2 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 11 | 91% | -5 min |
| 2025-09 | 27 | 78% | +26 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 67% |
| Tue | 7 | 71% |
| Wed | 6 | 100% |
| Thu | 6 | 83% |
| Fri | 6 | 100% |
| Sat | 1 | 100% |
| Sun | 6 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…