WN4556 Flight Status Southwest Airlines: St. Louis to Los Angeles (SWA4556)

WN 4556 St. Louis to Los Angeles Flight Status

Not scheduled today. Latest flight: August 2nd, 2026 ; recent history is in the table below.

WN 4556 Flight Status & Schedule Southwest Airlines St. Louis to Los Angeles

Date From To Departure Arrival Status Details
Aug 02 STL LAX 23:15 00:31 Landed Track >
Jul 29 STL LAX 23:05 00:21 Delayed Track >
Jul 28 STL LAX 22:28 23:44 Landed Late Track >
Jul 26 STL LAX 23:43 00:58 Landed Track >
Jul 22 STL LAX 21:48 23:06 Landed Track >
Jul 21 STL LAX 21:49 23:04 Landed Track >
Jul 19 STL LAX 00:05 01:15 Landed Late Track >
Jul 15 STL LAX 21:34 22:47 Landed Track >
Jul 14 STL LAX 22:28 23:33 Landed Late Track >
Jul 12 STL LAX 23:25 00:33 Landed Track >

Southwest Airlines operates WN 4556 from St. Louis to Los Angeles, a 2,557 km (1,589 mi) trip. The timetable allows 3 h 55 min, but the flight usually takes about 3 h 15 min, so it often makes up time. It is not flying today; the last flight, on 2 August 2026, landed on time.

< All St. Louis STL Departures All Los Angeles LAX Arrivals >

About WN 4556

Route
St. Louis Lambert International Airport STL to Los Angeles International Airport LAX
Distance
2,557 km (1,589 mi)
Typical flight time
3 h 15 min
On time
6 of the last 9
Average delay when late
26 min
Usually departs from
Terminal 2

WN 4556 FAQ

How long is the WN4556 flight?
The timetable allows 3 h 55 min. St. Louis to Los Angeles is 2,557 km (1,589 mi).
How often is WN4556 late?
3 of the last 9 flights arrived 15 or more minutes late; when late, by 26 minutes on average.
Which terminal does WN4556 use?
It usually leaves from Terminal 2 at St. Louis Lambert International Airport (STL) and arrives at Terminal 1 at Los Angeles International Airport (LAX). Check the flight card above for today's terminal and gate.
What other flight numbers does WN4556 have?
Also listed as SWA4556 (Southwest Airlines' ICAO code) and WN 4556.

WN4556 and St. Louis STL to Los Angeles LAX Flights

Other flights departing from St. Louis STL: WN3964, WN4515, WN3919, WN3985

Other flights arriving at Los Angeles LAX: AA669, WN1372, AA1209, WN3223

All flights connecting St. Louis STL to Los Angeles LAX.