ON TIMEBOARD

UA 5883 on time

United Airlines 5883: Medford to San Francisco at 6:35 p.m. (past 12 months)

On time
48%
183 flights · likely 41–55%
Cancelled
1.6%
of scheduled flights
Typical arrival
+15 min
median vs schedule
When late
+74 min
average delay
Similar flights
52%
UA, same route & hour

About 5 in 10 UA 5883 flights from Medford arrived 15+ minutes late, diverted or cancelled over the past year (52%); 1.6% were cancelled. The typical flight landed 15 minutes late.

UA 5883: MFR → SFO

Scheduled to leave Medford at 6:35 p.m. local time, operated by SkyWest as OO 5883. Over the past year it arrived on time 48% of the time (183 flights), worse than other UA flights on the route at that hour (52%). Last seen in the data Aug 30, 2026.

Usually United Airlines's last flight of the day from Medford to San Francisco (100% of days). United Airlines's last MFR–SFO flight was cancelled 1.7% of the time, against 0.3% 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%Jan 2026: 94% on time (17 flights)94JanFeb 2026: 85% on time (20 flights)85FebMar 2026: 87% on time (23 flights)87MarApr 2026: 36% on time (25 flights)36AprMay 2026: 23% on time (22 flights)23MayJun 2026: 30% on time (27 flights)30JunJul 2026: 23% on time (30 flights)23JulAug 2026: 32% on time (19 flights)32Aug

By day of week

DayFlightsOn time
Monday3047%
Tuesday18—
Wednesday3060%
Thursday3358%
Friday3348%
Saturday9—
Sunday3043%

Why it was late

Air traffic & airport (NAS) 62%Late inbound plane 19%Severe weather 14%Airline (crew, maintenance, ops) 5%

All flights MFR → SFO · Connecting off UA 5883? Check the risk

Questions

How often is UA 5883 from MFR to SFO late?

United Airlines 5883 from Medford, OR to San Francisco, CA arrived 15 or more minutes late, was diverted or was cancelled on 52% of 183 scheduled flights between September 2025 and August 2026. 1.6% 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.