ON TIMEBOARD

UA 4786 on time

United Airlines 4786: Palm Springs to San Francisco at 3:40 p.m. (past 12 months)

On time
70%
278 flights · likely 65–75%
Cancelled
0.7%
of scheduled flights
Typical arrival
−1 min
median vs schedule
When late
+60 min
average delay
Similar flights
74%
UA, same route & hour

About 1 in 3 UA 4786 flights from Palm Springs arrived 15+ minutes late, diverted or cancelled over the past year (30%); 0.7% were cancelled. The typical flight landed 1 minutes early.

UA 4786: PSP → SFO

Scheduled to leave Palm Springs at 3:40 p.m. local time, operated by SkyWest as OO 4786. Over the past year it arrived on time 70% of the time (278 flights), worse than other UA flights on the route at that hour (74%). Last seen in the data Aug 31, 2026.

Month by month

30%65%100%Sep 2025: too few flights (6 flights)SepOct 2025: 74% on time (31 flights)74OctNov 2025: 72% on time (29 flights)72NovDec 2025: too few flights (12 flights)DecJan 2026: 90% on time (30 flights)90JanFeb 2026: 68% on time (28 flights)68FebMar 2026: 96% on time (28 flights)96MarApr 2026: 81% on time (21 flights)81AprMay 2026: 44% on time (27 flights)44MayJun 2026: 48% on time (21 flights)48JunJul 2026: 70% on time (23 flights)70JulAug 2026: 55% on time (22 flights)55Aug

By day of week

DayFlightsOn time
Monday4473%
Tuesday2882%
Wednesday4163%
Thursday4370%
Friday4760%
Saturday2983%
Sunday4670%

Why it was late

Air traffic & airport (NAS) 51%Late inbound plane 29%Airline (crew, maintenance, ops) 13%Severe weather 7%

All flights PSP → SFO · Connecting off UA 4786? Check the risk

Questions

How often is UA 4786 from PSP to SFO late?

United Airlines 4786 from Palm Springs, CA to San Francisco, CA arrived 15 or more minutes late, was diverted or was cancelled on 30% of 278 scheduled flights between September 2025 and August 2026. 0.7% 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.