WN4372Southwest Airlines · SMF → SAN
live · 5m ago
Route confirmed Southwest Airlines

WN4372 SacramentoSMF · 06:10 San DiegoSAN · 07:45

WN4372 by Southwest Airlines flies from Sacramento (SMF) to San Diego (SAN).

Right nowNext departure tomorrow Operates daily
13:45

scheduled from SMF

Typical gate push+6 minmedian posted departure
Typical arrival−10 minmedian over 7 operations
Wins back in air~16 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
11-06
+5 gate · −10 arrival
10-30
+5 gate · −10 arrival
10-29
+15 gate · −2 arrival
10-28
+9 gate · −13 arrival
10-27
+16 gate · −14 arrival
10-26
+4 gate · −10 arrival
10-25
+6 gate · −14 arrival

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The last 30 days

arrival outcome per operation

median arrival −10 min · 0 cancelled · 7 operations tracked

The route today

live boards
SMFSacramentoOn-time likelySMF delay board →
SANSan DiegoOn-time likelySAN delay board →
SMF→SANevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
54%Chance of 15+ min delay
0.7%Chance of cancellation
+17 minTypical airport delay in this weather

Conditions at SMF and SAN 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 Sacramento

Forecast

Sat 7 Nov, local date

High22°Clikely 21°C to 23°C
Low5°Clikely 5°C to 7°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 San Diego

Forecast

Sat 7 Nov, local date

High27°Clikely 26°C to 29°C
Low17°Clikely 15°C to 18°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 San Diego flights today

same route · Southwest Airlines
WN3489departs 06:00
WN4829departs 06:05
WN4042departs 07:30
WN4373departs 08:00
WN2647departs 08:05
WN2448departs 08:25

If WN4372 is cancelled, these are the other Southwest Airlines nonstop flights from Sacramento to San Diego 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 WN4372 actually runs

Pro Flight Search has tracked every published board update for WN4372 across the SMF and SAN boards: schedule changes, gate pushes and actual clocks. Usually lands ~10 min early. Based on 7 confirmed landings · 7/7 within 15 min of schedule. Pushes back late but makes up time in the air.

The verdict above is that record speaking, so it reflects how WN4372 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
11-06SMF 06:10 06:15 (+5)SAN 07:45 07:35 (−10)
10-30SMF 06:10 06:15 (+5)SAN 07:45 07:35 (−10)
10-29SMF 06:10 06:25 (+15)SAN 07:45 07:43 (−2)
10-28SMF 06:00 06:09 (+9)SAN 07:35 07:22 (−13)
10-27SMF 06:00 06:16 (+16)SAN 07:35 07:21 (−14)
10-26SMF 06:10 06:14 (+4)SAN 07:45 07:35 (−10)
10-25SMF 06:35 06:41 (+6)SAN 08:10 07:56 (−14)

Aircraft

Recent tails: N938WN, N236WN, N8775Q, N8909L.

Board clocks recorded as SMF and SAN 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: WN4372 Sacramento to San Diego on-time performance, measured from the SMF and SAN airport boards.

Canonical URL
https://proflightsearch.com/flight/WN4372
How we measure this →