Flight OddsUA1603 SFO → SEA
United Airlines · San Francisco, CA to Seattle, WA · 37 flights observed, 2025-08-19 to 2025-09-24 · 679 mi
UA1603 covers more than one route in the data window — the stats below are for SFO → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
65%
Median delay
+3 min
90th percentile
+24 min
Cancellation rate
0%
How often is UA1603 on time?
Across 37 flights on SFO → SEA from 2025-08-19 to 2025-09-24, UA1603 arrived within 15 minutes of schedule 65% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +24 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 | 24 | 65% |
| 16-30 min | 13 | 35% |
| 31-60 min | 0 | 0% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 13 | 69% | +4 min |
| 2025-09 | 24 | 63% | +6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 60% |
| Tue | 6 | 67% |
| Wed | 6 | 67% |
| Thu | 5 | 40% |
| Fri | 5 | 100% |
| Sat | 5 | 60% |
| Sun | 5 | 60% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…