Southwest Airlines WN4399 Flight Status Tracker
WN4399 is a domestic flight operated by Southwest Airlines. WN4399 is departing from Philadelphia (PHL), United States and arriving at St Louis (STL), United States. The flight distance is about 1309.77 km or 813.85 miles and flight time is 1 hours 45 minutes. Get the latest status of WN4399 / SWA4399 here.
Update on Feb. 26, 2026, 12:42 p.m.
Lastest Status
Scheduled On time
| PHL | STL |
Distance: 1309.77 km / 813.85 miles or 707.22 nautical miles.
Departure Philadelphia International Airport
Estimate Departure: 10:40
Scheduled Departure: 10:40
Departure Terminal : 1 Gate None
Arrival Lambert International Airport
Scheduled Arrival: 12:00
Arrival Terminal : 1 Gate None
Flight WN4399 detail information
| Type | Domestic Flight |
| Route | Departure Philadelphia (PHL), United States and arriving at St Louis (STL), United States |
| Airlines | Southwest Airlines (WN) |
| Aircraft | B737 |
| Flight Duration | 1 hours 45 minutes |
| Flight Distance | 1309.77 km /813.85 miles |
| Operating Days | Tuesday, Saturday |
Find more flight status
WN4399 Airports
| Departures |
|---|
| Airport: Philadelphia International Airport, United States |
| ICAO Code: PHL |
| PHL Current time: 09:25 26-Feb-2026 |
| Arrivals |
| Airport: Lambert International Airport, United States |
| ICAO Code: STL |
| STL Current time: 08:25 26-Feb-2026 |