UA5588 SMF → SFO

United Airlines · Sacramento, CA to San Francisco, CA · 26 flights observed, 2025-09-26 to 2025-10-21 · 86 mi

This flight has a strong track record — on time 92% of the time, with a low cancellation rate.

UA5588 covers more than one route in the data window — the stats below are for SMF → SFO, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
92%
Median delay
-19 min
90th percentile
-1 min
Cancellation rate
0%

How often is UA5588 on time?

Across 26 flights on SMF → SFO from 2025-09-26 to 2025-10-21, UA5588 arrived within 15 minutes of schedule 92% of the time. The median arrival delay was -19 min, and the worst 10% of flights arrived -1 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2492%
16-30 min14%
31-60 min00%
61-120 min00%
2+ hrs14%

Performance by month

MonthFlightsOn-timeAvg delay
2025-095100%-17 min
2025-102190%-10 min

Performance by day of week

DayFlightsOn-time
Mon4100%
Tue475%
Wed3100%
Thu3100%
Fri475%
Sat4100%
Sun4100%

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