WN4120 Flight Status Southwest Airlines: Dallas to St. Louis (SWA4120)
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WN 4120 Dallas to St. Louis Flight Status
Not scheduled today (November 6th, 2026). Latest flight: September 28th, 2026 ; recent history is in the table below.
WN 4120 Flight Status & Schedule Southwest Airlines Dallas to St. Louis
| Date | From | To | Departure | Arrival | Status | Details |
|---|---|---|---|---|---|---|
| Sep 28 | DAL | STL | 18:55 | 20:14 | Landed | Track > |
| Sep 26 | DAL | STL | 18:00 | 19:13 | Landed | Track > |
| Sep 25 | DAL | STL | 20:11 | 21:27 | Delayed | Track > |
| Sep 24 | DAL | STL | 19:14 | 20:30 | Landed Late | Track > |
| Sep 21 | DAL | STL | 19:29 | 20:46 | Landed Late | Track > |
| Sep 19 | DAL | STL | 18:18 | 19:34 | Landed | Track > |
| Sep 18 | DAL | STL | 18:50 | 20:03 | Landed | Track > |
| Sep 17 | DAL | STL | 19:16 | 20:29 | Landed Late | Track > |
| Sep 14 | DAL | STL | 19:06 | 20:22 | Landed | Track > |
| Sep 12 | DAL | STL | 19:03 | 20:20 | Landed | Track > |
Southwest Airlines operates WN 4120 from Dallas to St. Louis, a 878 km (546 mi) trip. Its timetable allows 1 h 40 min; in practice it usually takes about 1 h 15 min, so it often makes up time. It is not flying today; the last flight, on 28 September 2026, landed on time.
About WN 4120
- Distance
- 878 km (546 mi)
- Typical flight time
- 1 h 15 min
- On time
- 6 of the last 9
- Average delay when late
- 25 min
- Usually departs from
- Terminal 1
WN 4120 FAQ
- How long is the WN4120 flight?
- The timetable allows 1 h 40 min. Dallas to St. Louis is 878 km (546 mi).
- How often is WN4120 late?
- 3 of the last 9 flights arrived 15 or more minutes late; when late, by 25 minutes on average.
- Which terminal does WN4120 use?
- It usually leaves from Terminal 1 at Dallas Love Field Airport (DAL) and 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 WN4120 have?
- Also listed as SWA4120 (Southwest Airlines' ICAO code) and WN 4120.
WN4120 and Dallas DAL to St. Louis STL Flights
Other flights departing from Dallas DAL: WN2794, WN1225, WN1492
Other flights arriving at St. Louis STL: WN2473, WN4203, YX4599, WN3312
All flights connecting Dallas DAL to St. Louis STL.