Flight OddsUA1620 SEA → SFO
United Airlines · Seattle, WA to San Francisco, CA · 72 flights observed, 2025-07-01 to 2025-09-24 · 679 mi
UA1620 covers more than one route in the data window — the stats below are for SEA → SFO, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
94%
Median delay
-12 min
90th percentile
+10 min
Cancellation rate
0%
How often is UA1620 on time?
Across 72 flights on SEA → SFO from 2025-07-01 to 2025-09-24, UA1620 arrived within 15 minutes of schedule 94% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +10 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 | 68 | 94% |
| 16-30 min | 2 | 3% |
| 31-60 min | 1 | 1% |
| 61-120 min | 1 | 1% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 23 | 96% | -11 min |
| 2025-08 | 25 | 96% | -6 min |
| 2025-09 | 24 | 92% | -5 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 12 | 92% |
| Tue | 13 | 92% |
| Wed | 13 | 92% |
| Thu | 12 | 92% |
| Fri | 12 | 100% |
| Sat | 5 | 100% |
| Sun | 5 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…