Is UA4748 delayed?
Service date: · Scheduled departure date (UTC)
Arrived
2 min late
Official source · Updated
Departure
Sacramento
SMF
Actual
Scheduled 02:23
Sep 22
Arrival
San Francisco
SFO
Actual
Scheduled 20:03
Sep 21
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
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SMFSFO
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 2 min late
SMF → SFO
- 57 min late
SMF → SFO
- 26 min late
SMF → SFO
- 13 min late
SMF → SFO
- 15 min early
SMF → SFO
Flight history and details
Aug 23, 2026 — Sep 22, 2026
- Observed arrivals
- 11
- Arrivals over 15 minutes late
- 6
- Observed cancellations
- 0
- Observed occurrences
- 11
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 22, 2026Arrived | Sacramento | San Francisco | 2 | |
| Sep 21, 2026Arrived | Sacramento | San Francisco | 57 | |
| Sep 19, 2026Arrived | Sacramento | San Francisco | 26 | |
| Sep 18, 2026Arrived | Sacramento | San Francisco | 13 | |
| Sep 15, 2026Arrived | Sacramento | San Francisco | -15 | |
| Sep 14, 2026Arrived | Sacramento | San Francisco | 72 | |
| Sep 11, 2026Arrived | Sacramento | San Francisco | -4 | |
| Sep 10, 2026Arrived | Sacramento | San Francisco | -7 | |
| Sep 8, 2026Arrived | Sacramento | San Francisco | 40 | |
| Sep 5, 2026Arrived | Sacramento | San Francisco | 39 | |
| Sep 3, 2026Arrived | Sacramento | San Francisco | 108 |