LAS → SFO United Airlines

United Airlines · Las Vegas, NV to San Francisco, CA · 2,756 flights, 2025-07-01 to 2026-06-30 · aggregated across 37 flight numbers

This route runs much more reliably at some times of day than others — 95% on-time departing 3–6am vs. 33% departing 9pm–12am.
On-time arrival
68%
Median delay
-1 min
90th percentile
+61 min
Cancellation rate
0%

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

Across every United Airlines flight number on LAS → SFO (2,756 flights, 2025-07-01 to 2026-06-30), 68% arrived within 15 minutes of schedule. Median arrival delay -1 min; the worst 10% ran +61 min or later. 0% were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1,87568%
16-30 min28610%
31-60 min30011%
61-120 min1907%
2+ hrs933%

Performance by month

MonthFlightsOn-timeAvg delay
2025-0723175%+10 min
2025-0823481%+4 min
2025-0922772%+4 min
2025-1023563%+14 min
2025-1122867%+17 min
2025-1224274%+9 min
2026-0122278%+7 min
2026-0218975%+9 min
2026-0321887%-6 min
2026-0421558%+21 min
2026-0524945%+31 min
2026-0625450%+33 min

Performance by day of week

DayFlightsOn-time
Mon38668%
Tue38173%
Wed37367%
Thu40263%
Fri40366%
Sat38277%
Sun41765%

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