UA1259 SEA → SFO

United Airlines · Seattle, WA to San Francisco, CA · 15 flights observed, 2026-05-25 to 2026-06-24 · 679 mi

UA1259 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
93%
Median delay
-15 min
90th percentile
+1 min
Cancellation rate
7%

How often is UA1259 on time?

Across 15 flights on SEA → SFO from 2026-05-25 to 2026-06-24, UA1259 arrived within 15 minutes of schedule 93% of the time. The median arrival delay was -15 min, and the worst 10% of flights arrived +1 min or later. 7% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1393%
16-30 min00%
31-60 min17%
61-120 min00%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2026-054100%-14 min
2026-061090%-9 min

Performance by day of week

DayFlightsOn-time
Mon250%
TueNo data—
Wed4100%
Thu4100%
FriNo data—
SatNo data—
Sun4100%

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