UA4683 TUS → SFO

United Airlines · Tucson, AZ to San Francisco, CA · 333 flights observed, 2025-07-01 to 2026-06-30 · 751 mi

This flight runs much more reliably at some times of day than others — 78% on-time departing 6–9am vs. 20% departing 9am–12pm.

UA4683 covers more than one route in the data window — the stats below are for TUS → SFO, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
70%
Median delay
+4 min
90th percentile
+54 min
Cancellation rate
0%

How often is UA4683 on time?

Across 333 flights on TUS → SFO from 2025-07-01 to 2026-06-30, UA4683 arrived within 15 minutes of schedule 70% of the time. The median arrival delay was +4 min, and the worst 10% of flights arrived +54 min or later. 0% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time23470%
16-30 min4213%
31-60 min278%
61-120 min155%
2+ hrs144%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073181%+3 min
2025-083194%+12 min
2025-092496%-6 min
2025-105100%-7 min
2025-113097%+1 min
2025-123184%+5 min
2026-013190%-3 min
2026-022778%+4 min
2026-033187%-3 min
2026-043033%+33 min
2026-053116%+66 min
2026-063020%+37 min

Performance by day of week

DayFlightsOn-time
Mon4867%
Tue4971%
Wed4873%
Thu4667%
Fri4768%
Sat4774%
Sun4772%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…