ON TIMEBOARD

UA 2029 on time

United Airlines 2029: San Francisco to Miami at 8:40 a.m. (past 12 months)

On time
70%
234 flights · likely 64–76%
Cancelled
0.0%
of scheduled flights
Typical arrival
+4 min
median vs schedule
When late
+38 min
average delay
Similar flights
71%
UA, same route & hour

About 1 in 3 UA 2029 flights from San Francisco arrived 15+ minutes late, diverted or cancelled over the past year (30%); 0.0% were cancelled. The typical flight landed 4 minutes late.

UA 2029: SFO → MIA

Scheduled to leave San Francisco at 8:40 a.m. local time. Over the past year it arrived on time 70% of the time (234 flights), in line with other UA flights on the route at that hour (71%). Last seen in the data Aug 10, 2026.

Month by month

40%70%100%Dec 2025: too few flights (14 flights)DecJan 2026: 87% on time (31 flights)87JanFeb 2026: 74% on time (27 flights)74FebMar 2026: 71% on time (31 flights)71MarApr 2026: 77% on time (30 flights)77AprMay 2026: 67% on time (30 flights)67MayJun 2026: 60% on time (30 flights)60JunJul 2026: 61% on time (31 flights)61JulAug 2026: too few flights (10 flights)Aug

By day of week

DayFlightsOn time
Monday3468%
Tuesday3376%
Wednesday3275%
Thursday3471%
Friday3474%
Saturday3462%
Sunday3367%

Why it was late

Air traffic & airport (NAS) 72%Airline (crew, maintenance, ops) 15%Late inbound plane 13%

All flights SFO → MIA · Connecting off UA 2029? Check the risk

Questions

How often is UA 2029 from SFO to MIA late?

United Airlines 2029 from San Francisco, CA to Miami, FL arrived 15 or more minutes late, was diverted or was cancelled on 30% of 234 scheduled flights between September 2025 and August 2026. 0.0% 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.