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United Airlines

Is UA4678 delayed?

UA4678 is cancelled on Nov 14.

Usually on time: arrived within 15 min of schedule on 9 of the last 10 flights.

Last reported

Cancelled

This update may be out of date. Check with your airline.

Update time unavailable

Departure

Boise

BOI

Scheduled

Nov 14

Arrival

San Francisco

SFO

Scheduled

Nov 14

Times shown in airport local time

Service date: · Scheduled departure date (America/Boise)

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual
Not available

Arrival · UTC

Scheduled
Estimated
Not available
Actual
Not available

Also sold as AC3995, NH7335, NZ9393

Recent arrivals

Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.

  • Boise → San Francisco

    23 min early

  • Boise → San Francisco

    28 min early

  • Boise → San Francisco

    On schedule (4 min behind)

  • Boise → San Francisco

    33 min early

  • Sacramento → San Francisco

    233 min late

Is UA4678 usually late?

Period: Oct 15, 2026 – Nov 14, 2026

Arrivals tracked
10
On time
90%
of 10 arrivals
Late
10%
of 10 arrivals
Cancelled
5%
of 22 flights
Median arrival delay
24 min early
9 in 10 arrived within
27 min

On time means arriving no more than 15 minutes after the scheduled time; late means more than 15 minutes after. Cancelled and diverted flights are counted apart from arrivals. Compares scheduled and actual arrival times. Cancelled and diverted flights are left out. Some flights may be missing.

How flight status works

At the airports today

San Francisco (SFO) departures

Left more than 15 min late
25 of 48
Cancelled today
41

Related flights

Other flights KBOI → SFO

All United Airlines flights

Flight history and details
UA4678 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Nov 14, 2026CancelledBoiseSan FranciscoNot availableNot available
Nov 13, 2026ArrivedBoiseSan Francisco-23
Nov 12, 2026ArrivedBoiseSan Francisco-28
Nov 11, 2026ArrivedBoiseSan Francisco4
Nov 10, 2026ArrivedBoiseSan Francisco-33
Nov 9, 2026ArrivedSacramentoSan Francisco233
Nov 8, 2026ArrivedBoiseSan Francisco-28
Nov 7, 2026ArrivedBoiseSan Francisco-12
Nov 6, 2026ArrivedBoiseSan Francisco-6
Nov 5, 2026ArrivedBoiseSan Francisco-25
Nov 4, 2026ArrivedBoiseSan Francisco-37
Oct 28, 2026ArrivedBoiseSan FranciscoNot available
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