WN12 Flight Status Southwest Airlines: St. Louis to Phoenix (SWA12)

WN 12 St. Louis to Phoenix Flight Status

Not scheduled today. Latest flight: July 29th, 2026 ; recent history is in the table below.

WN 12 Flight Status & Schedule Southwest Airlines St. Louis to Phoenix

Date From To Departure Arrival Status Details
Jul 29 STL PHX 09:46 10:26 Landed Track >
Jul 28 STL PHX 10:06 10:40 Landed Track >
Jul 22 STL PHX 10:06 10:46 Landed Track >
Jul 21 STL PHX 09:49 10:27 Landed Track >
Jul 15 STL PHX 09:56 10:29 Landed Track >
Jul 14 STL PHX 10:17 10:47 Landed Track >
Jul 08 STL PHX 10:07 10:42 Landed Track >
Jul 07 STL PHX 09:49 10:25 Landed Track >

Southwest Airlines operates WN 12 from St. Louis to Phoenix, a 2,027 km (1,259 mi) trip. With 3 h 10 min in the timetable and a usual flight time of about 2 h 35 min, it often makes up time. It is not flying today; the last flight, on 29 July 2026, landed on time.

< All St. Louis STL Departures All Phoenix PHX Arrivals >

About WN 12

Route
St. Louis Lambert International Airport STL to Phoenix Sky Harbor International Airport PHX
Distance
2,027 km (1,259 mi)
Typical flight time
2 h 35 min
On time
8 of the last 8
Usually departs from
Terminal 2

WN 12 FAQ

How long is the WN12 flight?
The timetable allows 3 h 10 min. St. Louis to Phoenix is 2,027 km (1,259 mi).
How often is WN12 late?
None of the last 8 flights arrived 15 or more minutes late.
Which terminal does WN12 use?
It usually leaves from Terminal 2 at St. Louis Lambert International Airport (STL) and arrives at Terminal 4 at Phoenix Sky Harbor International Airport (PHX). Check the flight card above for today's terminal and gate.
What other flight numbers does WN12 have?
Also listed as SWA12 (Southwest Airlines' ICAO code) and WN 12.

WN12 and St. Louis STL to Phoenix PHX Flights

Other flights departing from St. Louis STL: AA3814, WN2665, WN257

Other flights arriving at Phoenix PHX: WN319, WN4651, WN1795

All flights connecting St. Louis STL to Phoenix PHX.