WN400 Flight Status Southwest Airlines: Portland to St. Louis (SWA400)
WN 400 Portland to St. Louis Flight Status
Not scheduled today. Latest flight: September 26th, 2026 ; recent history is in the table below.
- This flight started in Oakland (OAK): WN400 Oakland to Portland departs at 07:25 local time on Sep 26.
WN 400 Flight Status & Schedule Southwest Airlines Portland to St. Louis
| Date | From | To | Departure | Arrival | Status | Details |
|---|---|---|---|---|---|---|
| Sep 26 | PDX | STL | 10:10 | 15:26 | Landed | Track > |
| Sep 19 | PDX | STL | 09:59 | 15:25 | Landed | Track > |
| Sep 12 | PDX | STL | 10:07 | 15:14 | Landed | Track > |
| Sep 05 | PDX | STL | 09:56 | 15:19 | Landed | Track > |
| Aug 29 | PDX | STL | 10:09 | 15:22 | Landed | Track > |
| Aug 22 | PDX | STL | 10:31 | 15:49 | Landed Late | Track > |
| Aug 15 | PDX | STL | 09:58 | 15:30 | Landed | Track > |
| Aug 08 | PDX | STL | 10:43 | 15:54 | Landed Late | Track > |
Southwest Airlines operates WN 400 from Portland to St. Louis, a 2,742 km (1,704 mi) trip. The timetable allows 3 h 45 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 26 September 2026, landed on time.
About WN 400
Southwest Airlines Flight WN400 connects Portland, United States to St. Louis, United States, taking off from Portland International Airport PDX and landing at St. Louis Lambert International Airport STL.
- Distance
- 2,742 km (1,704 mi)
- Typical flight time
- 3 h 15 min
- On time
- 6 of the last 8
- Average delay when late
- 22 min
WN 400 FAQ
- How long is the WN400 flight from Portland to St. Louis?
- The timetable allows 3 h 45 min. Portland to St. Louis is 2,742 km (1,704 mi).
- How often is WN400 from Portland to St. Louis late?
- 2 of the last 8 flights arrived 15 or more minutes late; when late, by 22 minutes on average.
- When was the latest WN400 flight from Portland to St. Louis?
- The latest WN400 was the 09:45 (local time) departure from Portland on 26 September 2026; it landed 4 minutes early.
- Which terminal does WN400 use?
- It usually arrives at Terminal 2 at St. Louis Lambert International Airport (STL). Check the flight card above for today's terminal and gate.
- What other flight numbers does WN400 have?
- Also listed as SWA400 (Southwest Airlines' ICAO code) and WN 400.
WN400 and Portland PDX to St. Louis STL Flights
Other flights departing from Portland PDX: AS1709, OO3422, EM8970, ST62
Other flights arriving at St. Louis STL: WN4619, WN3149, WN1098, WN1639
All flights connecting Portland PDX to St. Louis STL.