ON TIMEBOARD

UA 5583 on time

United Airlines 5583: Tucson to San Francisco at 1:40 p.m. (past 12 months)

On time
72%
334 flights · likely 67–77%
Cancelled
0.3%
of scheduled flights
Typical arrival
−6 min
median vs schedule
When late
+72 min
average delay
Similar flights
73%
UA, same route & hour

About 1 in 4 UA 5583 flights from Tucson arrived 15+ minutes late, diverted or cancelled over the past year (28%); 0.3% were cancelled. The typical flight landed 6 minutes early.

UA 5583: TUS → SFO

Scheduled to leave Tucson at 1:40 p.m. local time, operated by SkyWest as OO 5583. Over the past year it arrived on time 72% of the time (334 flights), in line with other UA flights on the route at that hour (73%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 100% on time (24 flights)100SepOct 2025: too few flights (6 flights)OctNov 2025: 87% on time (30 flights)87NovDec 2025: 68% on time (31 flights)68DecJan 2026: 68% on time (31 flights)68JanFeb 2026: 71% on time (28 flights)71FebMar 2026: 84% on time (31 flights)84MarApr 2026: 60% on time (30 flights)60AprMay 2026: 65% on time (31 flights)65MayJun 2026: 50% on time (30 flights)50JunJul 2026: 71% on time (31 flights)71JulAug 2026: 74% on time (31 flights)74Aug

By day of week

DayFlightsOn time
Monday4963%
Tuesday4888%
Wednesday4875%
Thursday4770%
Friday4755%
Saturday4783%
Sunday4873%

Why it was late

Air traffic & airport (NAS) 54%Late inbound plane 25%Airline (crew, maintenance, ops) 19%Severe weather 3%

All flights TUS → SFO · Connecting off UA 5583? Check the risk

Questions

How often is UA 5583 from TUS to SFO late?

United Airlines 5583 from Tucson, AZ to San Francisco, CA arrived 15 or more minutes late, was diverted or was cancelled on 28% of 334 scheduled flights between September 2025 and August 2026. 0.3% 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.