WN3747Southwest Airlines · SMF → SLC
updated 6h ago
Route confirmed Southwest Airlines

WN3747 SacramentoSMF Salt Lake CitySLC

WN3747 by Southwest Airlines flies from Sacramento (SMF) to Salt Lake City (SLC).

Right nowNext departure tomorrow Operates daily
01:15

scheduled from SMF

The route today

live boards
SMFSacramentoModerate riskSMF delay board →
SLCSalt Lake CityOn-time likelySLC delay board →
SMF→SLCevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
38%Chance of 15+ min delay
0.3%Chance of cancellation
+9 minTypical airport delay in this weather

Conditions at SMF and SLC are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. 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 SMF

Forecast

Sun 8 Nov, local date

High22°Clikely 19°C to 24°C
Low6°Clikely 4°C to 8°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 SLC

Forecast

Sun 8 Nov, local date

High15°Clikely 14°C to 17°C
Low4°Clikely 3°C to 6°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 Sacramento to Salt Lake City flights today

same route · Southwest Airlines
WN4021departs 07:25
WN2909departs 13:05
WN3576departs 14:10
WN2641departs 15:45
WN4518departs 19:50
WN685departs 19:55

If WN3747 is cancelled, these are the other Southwest Airlines nonstop flights from Sacramento to Salt Lake City on the same day, with scheduled departure times in SMF 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 WN3747 actually runs

Pro Flight Search has tracked every published board update for WN3747 across the SMF and SLC boards: schedule changes, gate pushes and actual clocks. Combined risk score: 33.0/100. Based on airport operations, weather, and cached board history at SMF and SLC.

The verdict above is that record speaking, so it reflects how WN3747 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around WN3747? 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: WN3747 Sacramento to Salt Lake City on-time performance, measured from the SMF and SLC airport boards.

Canonical URL
https://proflightsearch.com/flight/WN3747
How we measure this →