United Airlines
Is UA4678 delayed?
No — UA4678 landed in San Francisco 22 min early, at 07:13 on Sep 25 (as of Sep 25, 14:23 UTC). Over its last 21 recorded arrivals, 0 landed more than 15 min late.
Arrived
22 min early
Official source · Updated
Departure
Boise
BOI
Scheduled
Not available
Arrival
San Francisco
SFO
Actual
Scheduled 07:35
Sep 25
Times shown in airport local time
Service date: · Scheduled arrival date; departure time unavailable (America/Los_Angeles)
Flight details
Departure · UTC
- Scheduled
- Not available
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Actual
BOISFO
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 22 min early
BOI → SFO
- 29 min early
BOI → SFO
- 28 min early
BOI → SFO
- 38 min early
BOI → SFO
- 30 min early
BOI → SFO
Flight history and details
Aug 28, 2026 — Sep 27, 2026
- Observed arrivals
- 21
- Arrivals over 15 minutes late
- 0
- Observed cancellations
- 0
- Observed occurrences
- 21
Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 25, 2026Arrived | Boise | San Francisco | -22 | |
| Sep 24, 2026Arrived | Boise | San Francisco | -29 | |
| Sep 23, 2026Arrived | Boise | San Francisco | -28 | |
| Sep 22, 2026Arrived | Boise | San Francisco | -38 | |
| Sep 21, 2026Arrived | Boise | San Francisco | -30 | |
| Sep 20, 2026Arrived | Boise | San Francisco | -14 | |
| Sep 19, 2026Arrived | Boise | San Francisco | -23 | |
| Sep 18, 2026Arrived | Boise | San Francisco | -25 | |
| Sep 17, 2026Arrived | Boise | San Francisco | -21 | |
| Sep 16, 2026Arrived | Boise | San Francisco | -23 | |
| Sep 14, 2026Arrived | Boise | San Francisco | 0 | |
| Sep 13, 2026Arrived | Boise | San Francisco | -11 | |
| Sep 12, 2026Arrived | Boise | San Francisco | -24 | |
| Sep 11, 2026Arrived | Boise | San Francisco | -21 | |
| Sep 10, 2026Arrived | Boise | San Francisco | -15 | |
| Sep 9, 2026Arrived | Boise | San Francisco | -16 | |
| Sep 8, 2026Arrived | Boise | San Francisco | 4 | |
| Sep 7, 2026Arrived | Boise | San Francisco | -18 | |
| Sep 6, 2026Arrived | Boise | San Francisco | -6 | |
| Sep 5, 2026Arrived | Boise | San Francisco | -17 | |
| Sep 4, 2026Arrived | Boise | San Francisco | -12 |