WN4018Southwest Airlines · SNA → SMF
live · 7h ago
Route confirmed Southwest Airlines

WN4018 Santa AnaSNA · 09:00 SacramentoSMF · 10:30

WN4018 by Southwest Airlines flies from Santa Ana (SNA) to Sacramento (SMF).

Right nowNext departure today Operates daily
09:00

scheduled from SNA

⚖ WN4018 typically leaves +9 and lands −15. The air wins minutes back.
Typical gate push+9 minmedian posted departure
Typical arrival−15 minmedian over 9 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
10-16
+9 gate · −14 arrival
10-15
+3 gate · −16 arrival
10-12
+11 gate · −10 arrival
10-11
+10 gate · −18 arrival
10-09
+9 gate · −14 arrival
10-08
−4 gate · −30 arrival
10-05
+6 gate · −15 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 −15 min · 0 cancelled · 9 operations tracked

The route today

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

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
40%Chance of 15+ min delay
0.4%Chance of cancellation
+8 minAvg hub delay right now

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

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 Santa Ana to Sacramento flights today

same route · Southwest Airlines
WN4017departs 06:45
WN4019departs 09:35
WN2293departs 11:35
WN4020departs 14:10
WN770departs 14:10
WN1794departs 15:00

If WN4018 is cancelled, these are the other Southwest Airlines nonstop flights from Santa Ana to Sacramento on the same day, with scheduled departure times in SNA local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How WN4018 actually runs

Pro Flight Search has tracked every published board update for WN4018 across the SNA and SMF boards: schedule changes, gate pushes and actual clocks. Usually lands ~14 min early. Based on 9 confirmed landings · 9/9 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 WN4018 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
10-16SNA 09:00 09:09 (+9)SMF 10:30 10:16 (−14)
10-15SNA 09:00 09:03 (+3)SMF 10:30 10:14 (−16)
10-12SNA 09:00 09:11 (+11)SMF 10:30 10:20 (−10)
10-11SNA 09:30 09:40 (+10)SMF 11:00 10:42 (−18)
10-09SNA 09:00 09:09 (+9)SMF 10:30 10:16 (−14)
10-08SNA 09:00 08:56 (−4)SMF 10:30 10:00 (−30)
10-05SNA 09:00 09:06 (+6)SMF 10:30 10:15 (−15)
10-04SNA 09:30 10:00 (+30)SMF 11:00 (+0)
10-02SNA 09:00 09:05 (+5)SMF 10:30 10:13 (−17)

Aircraft

Recent tails: N226WN, N904WN, N491WN, N499WN.

Board clocks recorded as SNA and SMF published them.

Planning around WN4018? 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 — WN4018 Santa Ana to Sacramento on-time performance, measured from the SNA and SMF airport boards.

Canonical URL
https://proflightsearch.com/flight/WN4018
How we measure this →