WN3979Southwest Airlines · SMF → SNA
live · 2h ago
Route confirmed Southwest Airlines

WN3979 SacramentoSMF · 11:30 Santa AnaSNA · 13:00

WN3979 by Southwest Airlines flies from Sacramento (SMF) to Santa Ana (SNA).

Right nowNext departure today Operates daily
14:50

scheduled from SMF

Typical gate push+16 minmedian posted departure
Typical arrival−8 minmedian over 7 operations
Wins back in air~24 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
10-23
+14 gate · −11 arrival
10-22
+29 gate · +5 arrival
10-19
+16 gate · −7 arrival
10-16
+14 gate · −11 arrival
10-15
+20 gate · −8 arrival
10-12
+7 gate · −16 arrival
10-09
+46 gate · +28 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 −8 min · 0 cancelled · 7 operations tracked

The route today

live boards
SMFSacramentoOn-time likelySMF delay board →
SNASanta AnaModerate riskSNA delay board →
SMF→SNAevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Early read, sample still building
43%Chance of 15+ min delay
0.3%Chance of cancellation
+5 minAvg hub delay right now

Driven mainly by SMF (Sacramento), currently flying MVFR (marginal visual). For this route and airline, under conditions like today's, over the last 90 days. This route's tracked sample is still thin — treat these as an early read, not a precise forecast.

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

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 Santa Ana flights today

same route · Southwest Airlines
WN3563departs 06:15
WN3749departs 07:20
WN2383departs 07:25
WN1226departs 08:50
WN3208departs 09:20
WN3310departs 09:20

If WN3979 is cancelled, these are the other Southwest Airlines nonstop flights from Sacramento to Santa Ana on the same day, with scheduled departure times in SMF local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How WN3979 actually runs

Pro Flight Search has tracked every published board update for WN3979 across the SMF and SNA boards: schedule changes, gate pushes and actual clocks. Usually lands ~5 min early. Based on 7 confirmed landings · 6/7 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 WN3979 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
10-23SMF 11:30 11:44 (+14)SNA 13:00 12:49 (−11)
10-22SMF 11:30 11:59 (+29)SNA 13:00 13:05 (+5)
10-19SMF 11:30 11:46 (+16)SNA 13:00 12:53 (−7)
10-16SMF 11:30 11:44 (+14)SNA 13:00 12:49 (−11)
10-15SMF 11:30 11:50 (+20)SNA 13:00 12:52 (−8)
10-12SMF 11:30 11:37 (+7)SNA 13:00 12:44 (−16)
10-09SMF 11:30 12:16 (+46)SNA 13:00 13:28 (+28)

Aircraft

Recent tails: N9030S, N8952Q, N8934Q, N8830Q.

Board clocks recorded as SMF and SNA 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 — WN3979 Sacramento to Santa Ana on-time performance, measured from the SMF and SNA airport boards.

Canonical URL
https://proflightsearch.com/flight/WN3979
How we measure this →