UA1333 SEA → SFO

United Airlines · Seattle, WA to San Francisco, CA · 29 flights observed, 2025-09-26 to 2025-10-25 · 679 mi

This flight's reliability varies a lot by day of week — 100% on-time on Saturdays vs. 40% on Fridays.

UA1333 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
69%
Median delay
+7 min
90th percentile
+73 min
Cancellation rate
0%

How often is UA1333 on time?

Across 29 flights on SEA → SFO from 2025-09-26 to 2025-10-25, UA1333 arrived within 15 minutes of schedule 69% of the time. The median arrival delay was +7 min, and the worst 10% of flights arrived +73 min or later. 0% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time2069%
16-30 min27%
31-60 min27%
61-120 min414%
2+ hrs13%

Performance by month

MonthFlightsOn-timeAvg delay
2025-09560%+32 min
2025-102471%+23 min

Performance by day of week

DayFlightsOn-time
Mon450%
Tue4100%
Wed450%
Thu367%
Fri540%
Sat5100%
Sun475%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…