UA4790United Airlines · SFO → SMF
live · 58m ago
Route confirmed United Airlines

UA4790 San FranciscoSFO · 12:30 SacramentoSMF · 13:28

UA4790 by United Airlines flies from San Francisco (SFO) to Sacramento (SMF) for the Mon, Nov 9 departure.

Right nowDelayed · gate F10 · as of 11:15
13:35

departs SFO · 65 min late

The route today

live boards
SFOSan FranciscoOn-time likelySFO delay board →
SMFSacramentoOn-time likelySMF delay board →
SFO→SMFevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
53%Chance of 15+ min delay
0.8%Chance of cancellation
+17 minTypical airport delay in this weather

Driven mainly by SFO (San Francisco), currently flying IFR (instrument). These figures come from both airports' records under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

Tomorrow at San Francisco

Forecast

Tue 10 Nov, local date

High22°Clikely 20°C to 24°C
Low13°Clikely 12°C to 15°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at Sacramento

Forecast

Tue 10 Nov, local date

High24°Clikely 22°C to 26°C
Low8°Clikely 6°C to 10°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other San Francisco to Sacramento flights today

same route · United Airlines
UA9726departs 05:30
UA5220departs 08:30
UA5770departs 16:10
UA5796departs 18:40
UA2397departs 18:45
UA1848departs 22:49

If UA4790 is cancelled, these are the other United Airlines nonstop flights from San Francisco to Sacramento on the same day, with scheduled departure times in SFO local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How UA4790 actually runs

Pro Flight Search has tracked every published board update for UA4790 across the SFO and SMF boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 1 completed leg so far: landed +55 min. Not enough to call it.

The verdict above is that record speaking, so it reflects how UA4790 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
11-08SFO 12:30 13:38 (+68)SMF 13:28 14:22 (+54)
11-07SFO 12:30 12:23 (−7)SMF

Aircraft

Recent tails: N206SY.

Board clocks recorded as SFO and SMF published them.

Planning around UA4790? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: UA4790 San Francisco to Sacramento on-time performance, measured from the SFO and SMF airport boards.

Canonical URL
https://proflightsearch.com/flight/UA4790
How we measure this →