WN3851Southwest Airlines · SNA → PHX
live · 18m ago
Route confirmed Southwest Airlines

WN3851 Santa AnaSNA · 19:10 PhoenixPHX · 16:15

WN3851 by Southwest Airlines flies from Santa Ana (SNA) to Phoenix (PHX) for the Wed, Oct 21 departure.

Right nowEn route to Phoenix · off blocks 19:28 · 18 min late
16:15

estimated arrival at PHX · local time · ~13h 49m from now

En routeWN3851 · position estimated
SNASanta AnaPHXPhoenix
Estimated from the boardsarr 16:15

Board estimate · gate and arrival times. Off blocks 19:28.

Typical gate push+18 minmedian posted departure
Typical arrival−16 minmedian over 2 operations
Wins back in air~34 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 3 operations · gate push → arrival
0+30+60+90 min
10-22
+18 gate
10-21
+18 gate · −16 arrival
10-20
−40 arrival

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

The route today

live boards
SNASanta AnaModerate riskSNA delay board →
PHXPhoenixOn-time likelyPHX delay board →
SNA→PHXevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
36%Chance of 15+ min delay
1.0%Chance of cancellation
+2 minAvg hub delay right now

Conditions at SNA and PHX 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 Phoenix flights today

same route · Southwest Airlines
WN2315departs 07:05
WN4003departs 07:05
WN537departs 07:45
WN1064departs 09:30
WN4004departs 10:45
WN3377departs 11:00

If WN3851 is cancelled, these are the other Southwest Airlines nonstop flights from Santa Ana to Phoenix 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 WN3851 actually runs

Pro Flight Search has tracked every published board update for WN3851 across the SNA and PHX boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: left a little late (~18 min) but landed about 16 min early. Not enough to call it.

The verdict above is that record speaking, so it reflects how WN3851 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
10-22SNA 19:10 19:28 (+18)PHX
10-21SNA 19:10 19:28 (+18)PHX 20:35 20:19 (−16)
10-20SNA PHX 20:35 19:55 (−40)

Aircraft

Recent tails: N8849Q, N9017L.

Board clocks recorded as SNA and PHX 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 — WN3851 Santa Ana to Phoenix on-time performance, measured from the SNA and PHX airport boards.

Canonical URL
https://proflightsearch.com/flight/WN3851
How we measure this →