WN4166 Flight Status Southwest Airlines: Washington to St. Louis (SWA4166)
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WN 4166 Washington to St. Louis Flight Status
Not scheduled today (November 3rd, 2026). Latest flight: September 30th, 2026 ; recent history is in the table below.
- This flight continues to San Antonio (SAT): WN4166 St. Louis to San Antonio departs at 20:45 local time on Sep 30.
WN 4166 Flight Status & Schedule Southwest Airlines Washington to St. Louis
| Date | From | To | Departure | Arrival | Status | Details |
|---|---|---|---|---|---|---|
| Sep 30 | DCA | STL | 19:16 | 19:57 | Landed | Track > |
| Sep 29 | DCA | STL | 19:31 | 20:12 | Landed | Track > |
| Sep 23 | DCA | STL | 19:23 | 20:07 | Landed | Track > |
| Sep 22 | DCA | STL | 19:08 | 20:01 | Landed | Track > |
| Sep 16 | DCA | STL | 19:27 | 20:05 | Landed | Track > |
| Sep 15 | DCA | STL | 19:27 | 20:10 | Landed | Track > |
| Sep 09 | DCA | STL | 19:02 | 19:45 | Landed | Track > |
| Sep 08 | DCA | STL | 19:26 | 20:08 | Landed | Track > |
| Aug 26 | DCA | STL | 19:13 | 20:02 | Landed | Track > |
| Aug 25 | DCA | STL | 19:01 | 19:52 | Landed | Track > |
Southwest Airlines operates WN 4166 from Washington to St. Louis, a 1,154 km (717 mi) trip. Its timetable allows 2 h 10 min; in practice it usually takes about 1 h 45 min, so it often makes up time. It is not flying today; the last flight, on 30 September 2026, landed on time.
About WN 4166
- Distance
- 1,154 km (717 mi)
- Typical flight time
- 1 h 45 min
- On time
- 10 of the last 10
- Usually departs from
- Terminal 1
WN 4166 FAQ
- How long is the WN4166 flight?
- The timetable allows 2 h 10 min. Washington to St. Louis is 1,154 km (717 mi).
- How often is WN4166 late?
- None of the last 10 flights arrived 15 or more minutes late.
- Which terminal does WN4166 use?
- It usually leaves from Terminal 1 at Washington Ronald Reagan National Airport (DCA) 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 WN4166 have?
- Also listed as SWA4166 (Southwest Airlines' ICAO code) and WN 4166.
WN4166 and Washington DCA to St. Louis STL Flights
Other flights departing from Washington DCA: WN3033, WN2843, YX5689, YX4668
Other flights arriving at St. Louis STL: WN3428, WN2218, WN1485, WN3312
All flights connecting Washington DCA to St. Louis STL.