ON TIMEBOARD

UA 5305 on time

United Airlines 5305: Arcata to San Francisco at 6:44 p.m. (past 12 months)

On time
31%
130 flights · likely 23–39%
Cancelled
5.4%
of scheduled flights
Typical arrival
+31 min
median vs schedule
When late
+66 min
average delay
Similar flights
39%
UA, same route & hour

About 7 in 10 UA 5305 flights from Arcata arrived 15+ minutes late, diverted or cancelled over the past year (69%); 5.4% were cancelled. The typical flight landed 31 minutes late.

UA 5305: ACV → SFO

Scheduled to leave Arcata at 6:44 p.m. local time, operated by SkyWest as OO 5305. Over the past year it arrived on time 31% of the time (130 flights), worse than other UA flights on the route at that hour (39%). Last seen in the data Aug 31, 2026.

Usually United Airlines's last flight of the day from Arcata to San Francisco (100% of days). United Airlines's last ACV–SFO flight was cancelled 3.6% of the time, against 2.4% for its earlier ones. If it's cancelled, the next United Airlines flight is usually around 6:00 a.m. the next morning.

Month by month

10%55%100%Mar 2026: too few flights (3 flights)MarApr 2026: 33% on time (30 flights)33AprMay 2026: 33% on time (24 flights)33MayJun 2026: 28% on time (18 flights)28JunJul 2026: 23% on time (30 flights)23JulAug 2026: 40% on time (25 flights)40Aug

By day of week

DayFlightsOn time
Monday2317%
Tuesday14—
Wednesday17—
Thursday2236%
Friday2232%
Saturday10—
Sunday2236%

Why it was late

Air traffic & airport (NAS) 50%Late inbound plane 30%Airline (crew, maintenance, ops) 15%Severe weather 5%

All flights ACV → SFO · Connecting off UA 5305? Check the risk

Questions

How often is UA 5305 from ACV to SFO late?

United Airlines 5305 from Arcata/Eureka, CA to San Francisco, CA arrived 15 or more minutes late, was diverted or was cancelled on 69% of 130 scheduled flights between September 2025 and August 2026. 5.4% 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.