WN3944Southwest Airlines · SMF → MDW
updated 1h ago
Route confirmed Southwest Airlines

WN3944 SacramentoSMF · 06:15 ChicagoMDW · 12:05

WN3944 by Southwest Airlines flies from Sacramento (SMF) to Chicago (MDW) for the Wed, Nov 11 departure.

Right nowEn route to Chicago · off blocks 06:26 · 11 min late
En route

en route from SMF to MDW

En routeWN3944 · position estimated
SMFSacramentoMDWChicago
Estimated from the boards

Board estimate · gate and arrival times. Off blocks 06:26 · typical taxi-out at SMF ≈ 5.2 min. No receiver coverage over open ocean.

The route today

live boards
SMFSacramentoOn-time likelySMF delay board →
MDWChicagoOn-time likelyMDW delay board →
SMF→MDWevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
41%Chance of 15+ min delay
0.5%Chance of cancellation
+9 minTypical airport delay in this weather

Conditions at SMF and MDW 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

Thu 12 Nov, local date

High22°Clikely 19°C to 24°C
Low7°Clikely 5°C to 9°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 MDW

Forecast

Thu 12 Nov, local date

High10°Clikely 9°C to 11°C
Low4°Clikely 2°C to 6°C
  • 78% chance of rain

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 Chicago flights today

same route · Southwest Airlines
WN3976departs 05:45
WN1278departs 06:20
WN3573departs 11:10
WN3945departs 23:55
WN4028departs 23:55

If WN3944 is cancelled, these are the other Southwest Airlines nonstop flights from Sacramento to Chicago 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 WN3944 actually runs

Pro Flight Search has tracked every published board update for WN3944 across the SMF and MDW boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 2 completed legs so far: left a little late (~11 min) but landed about 9 min early. Not enough to call it.

The verdict above is that record speaking, so it reflects how WN3944 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
11-11SMF 06:15 06:26 (+11)MDW 12:05 11:56 (−9)
10-28SMF 06:15 06:26 (+11)MDW 12:05 11:56 (−9)

Aircraft

Recent tails: N8831L.

Board clocks recorded as SMF and MDW published them.

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: WN3944 Sacramento to Chicago on-time performance, measured from the SMF and MDW airport boards.

Canonical URL
https://proflightsearch.com/flight/WN3944
How we measure this →