ON TIMEBOARD

UA 611 on time

United Airlines 611: San Francisco to Las Vegas at 11:00 a.m. (past 12 months)

On time
76%
312 flights · likely 71–80%
Cancelled
0.6%
of scheduled flights
Typical arrival
+1 min
median vs schedule
When late
+47 min
average delay
Similar flights
68%
UA, same route & hour

About 1 in 4 UA 611 flights from San Francisco arrived 15+ minutes late, diverted or cancelled over the past year (24%); 0.6% were cancelled. The typical flight landed 1 minutes late.

UA 611: SFO → LAS

Scheduled to leave San Francisco at 11:00 a.m. local time. Over the past year it arrived on time 76% of the time (312 flights), better than other UA flights on the route at that hour (68%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Aug 2025: 94% on time (16 flights)94AugSep 2025: 83% on time (30 flights)83SepOct 2025: 84% on time (31 flights)84OctNov 2025: 77% on time (30 flights)77NovDec 2025: 71% on time (31 flights)71DecJan 2026: 77% on time (31 flights)77JanFeb 2026: 89% on time (28 flights)89FebMar 2026: 79% on time (28 flights)79MarMay 2026: too few flights (11 flights)MayJun 2026: 77% on time (30 flights)77JunJul 2026: 61% on time (31 flights)61JulAug 2026: 58% on time (31 flights)58Aug

By day of week

DayFlightsOn time
Monday4560%
Tuesday4477%
Wednesday4480%
Thursday4571%
Friday4578%
Saturday4582%
Sunday4482%

Why it was late

Late inbound plane 48%Air traffic & airport (NAS) 34%Airline (crew, maintenance, ops) 19%

All flights SFO → LAS · Connecting off UA 611? Check the risk

Questions

How often is UA 611 from SFO to LAS late?

United Airlines 611 from San Francisco, CA to Las Vegas, NV arrived 15 or more minutes late, was diverted or was cancelled on 24% of 312 scheduled flights between September 2025 and August 2026. 0.6% were cancelled.

Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check United Airlines for today's flight. Method.