WN3877 Flight Status Southwest Airlines: St. Louis to Phoenix (SWA3877)
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WN 3877 St. Louis to Phoenix Flight Status
Not scheduled today (November 3rd, 2026). Latest flight: September 30th, 2026 ; recent history is in the table below.
- This flight started in Chicago (MDW): WN3877 Chicago to St. Louis departs at 10:10 local time on Sep 30.
- This flight continues to Sacramento (SMF): WN3877 Phoenix to Sacramento departs at 13:45 local time on Sep 30.
WN 3877 Flight Status & Schedule Southwest Airlines St. Louis to Phoenix
| Date | From | To | Departure | Arrival | Status | Details |
|---|---|---|---|---|---|---|
| Sep 30 | STL | PHX | 12:13 | 12:59 | Landed | Track > |
| Sep 29 | STL | PHX | 12:22 | 13:27 | Landed Late | Track > |
| Sep 28 | STL | PHX | 12:02 | 12:57 | Landed | Track > |
| Sep 26 | STL | PHX | 12:05 | 13:00 | Landed | Track > |
| Sep 25 | STL | PHX | 11:59 | 12:52 | Landed | Track > |
| Sep 24 | STL | PHX | 12:03 | 12:46 | Landed | Track > |
| Sep 23 | STL | PHX | 11:57 | 12:50 | Landed | Track > |
| Sep 22 | STL | PHX | 12:07 | 13:12 | Landed | Track > |
| Sep 21 | STL | PHX | 12:31 | 13:30 | Landed Late | Track > |
| Sep 19 | STL | PHX | 12:10 | 12:57 | Landed | Track > |
Southwest Airlines' St. Louis–Phoenix flight covers 2,027 km (1,259 mi). Its timetable allows 3 h 10 min; in practice it usually takes about 2 h 55 min, so it often makes up time. It is not flying today; the last flight, on 30 September 2026, landed on time.
About WN 3877
- Distance
- 2,027 km (1,259 mi)
- Typical flight time
- 2 h 55 min
- On time
- 8 of the last 10
- Average delay when late
- 26 min
- Usually departs from
- Terminal 2
WN 3877 FAQ
- How long is the WN3877 flight?
- The timetable allows 3 h 10 min. St. Louis to Phoenix is 2,027 km (1,259 mi).
- How often is WN3877 late?
- 2 of the last 10 flights arrived 15 or more minutes late; when late, by 26 minutes on average.
- Which terminal does WN3877 use?
- It usually leaves from Terminal 2 at St. Louis Lambert International Airport (STL) and arrives at Terminal 4 at Phoenix Sky Harbor International Airport (PHX). Check the flight card above for today's terminal and gate.
- What other flight numbers does WN3877 have?
- Also listed as SWA3877 (Southwest Airlines' ICAO code) and WN 3877.
WN3877 and St. Louis STL to Phoenix PHX Flights
Other flights departing from St. Louis STL: WN3846, WN4591, WN125, WN4823
Other flights arriving at Phoenix PHX: AS449, WN4084, MQ4019, WN813
All flights connecting St. Louis STL to Phoenix PHX.