SUN → SFO United Airlines

United Airlines · Sun Valley/Hailey/Ketchum, ID to San Francisco, CA · 292 flights, 2025-07-01 to 2026-06-30 · aggregated across 7 flight numbers

This route runs much more reliably at some times of day than others — 92% on-time departing 3–6pm vs. 42% departing 6–9am.
On-time arrival
64%
Median delay
-4 min
90th percentile
+76 min
Cancellation rate
0%

How on-time is United Airlines from SUN to SFO?

Across every United Airlines flight number on SUN → SFO (292 flights, 2025-07-01 to 2026-06-30), 64% arrived within 15 minutes of schedule. Median arrival delay -4 min; the worst 10% ran +76 min or later. 0% were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time18864%
16-30 min248%
31-60 min3211%
61-120 min3412%
2+ hrs145%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073441%+39 min
2025-083479%+8 min
2025-091479%+3 min
2025-101173%+20 min
2025-123358%+55 min
2026-014281%-1 min
2026-023778%-2 min
2026-034093%-23 min
2026-04771%+2 min
2026-05933%+18 min
2026-06313%+53 min

Performance by day of week

DayFlightsOn-time
Mon3661%
Tue3468%
Wed3177%
Thu3158%
Fri4365%
Sat6370%
Sun5454%

UA flight numbers on SUN → SFO

Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…