WN3737Southwest Airlines · SMF → SAN
live · 23m ago
Route confirmed Southwest Airlines

WN3737 SacramentoSMF · 15:15 San DiegoSAN · 16:45

WN3737 by Southwest Airlines flies from Sacramento (SMF) to San Diego (SAN).

Right nowNext departure today Operates daily
10:10

scheduled from SMF

Typical gate push+35 minmedian posted departure
Typical arrival+26 minmedian over 5 operations
Wins back in air~9 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 5 operations · gate push → arrival
0+35+69+104 min
10-08
+35 gate · +26 arrival
09-28
+62 gate · +46 arrival
09-27
+33 gate · +21 arrival
09-25
+104 gate · +96 arrival
09-24
+35 gate · +26 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 +26 min · 0 cancelled · 5 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
53%Chance of 15+ min delay
0.7%Chance of cancellation
+18 minAvg hub delay right now

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. 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 Sacramento to San Diego flights today

same route · Southwest Airlines
WN778departs 05:50
WN4372departs 06:10
WN4566departs 06:25
WN2034departs 07:35
WN4373departs 08:00
WN2647departs 08:05

If WN3737 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 posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How WN3737 actually runs

Pro Flight Search has tracked every published board update for WN3737 across the SMF and SAN boards: schedule changes, gate pushes and actual clocks. Usually departs ~18 min late. Based on 5 confirmed departures · 1/5 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how WN3737 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
10-08SMF 15:15 15:50 (+35)SAN 16:45 17:11 (+26)
09-28SMF 15:15 16:17 (+62)SAN 16:45 17:31 (+46)
09-27SMF 12:30 13:03 (+33)SAN 14:00 14:21 (+21)
09-25SMF 15:15 16:59 (+104)SAN 16:45 18:21 (+96)
09-24SMF 15:15 15:50 (+35)SAN 16:45 17:11 (+26)

Aircraft

Recent tails: N464WN, N8838Q, N470WN, N936WN.

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 — WN3737 Sacramento to San Diego on-time performance, measured from the SMF and SAN airport boards.

Canonical URL
https://proflightsearch.com/flight/WN3737
How we measure this →