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Southwest Airlines

Is WN3877 delayed?

Service date: · Scheduled arrival date; departure time unavailable (America/Phoenix)

Arrived

10 min early

Official source · Updated

Departure

St Louis

STL

Scheduled

Not available

Arrival

Phoenix

PHX

Actual

Scheduled 13:00

Sep 18

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Not available
Estimated
Not available
Actual
Not available

Arrival · UTC

Scheduled
Estimated
Actual

Recent arrivals

Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.

  • MDW → STL

    7 min early

  • STL → PHX

    30 min late

  • LAS → CMH

    11 min early

  • STL → PHX

    3 min early

  • STL → PHX

    10 min early
Flight history and details

Aug 23, 2026 — Sep 22, 2026

Observed arrivals
29
Arrivals over 15 minutes late
6
Observed cancellations
0
Observed occurrences
31

Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.

How flight status works

WN3877 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 22, 2026ArrivedChicagoSt Louis
-7
Sep 21, 2026ArrivedSt LouisPhoenix
30
Sep 20, 2026ArrivedLas VegasColumbus
-11
Sep 19, 2026ArrivedSt LouisPhoenix
-3
Sep 18, 2026ArrivedSt LouisPhoenix
-10
Sep 17, 2026ArrivedSt LouisPhoenix
-12
Sep 16, 2026ArrivedPhoenixSacramento
67
Sep 16, 2026ArrivedSt LouisPhoenix
54
Sep 16, 2026ArrivedChicagoSt Louis
1
Sep 15, 2026ArrivedPhoenixSacramento
24
Sep 15, 2026ArrivedSt LouisPhoenix
47
Sep 15, 2026ArrivedChicagoSt Louis
-26
Sep 14, 2026ArrivedSt LouisPhoenix
-2
Sep 12, 2026ArrivedSt LouisPhoenix
-13
Sep 11, 2026ArrivedSt LouisPhoenix
-22
Sep 10, 2026ArrivedSt LouisPhoenix
-15
Sep 9, 2026ArrivedPhoenixSacramento
-13
Sep 9, 2026ArrivedSt LouisPhoenix
-25
Sep 8, 2026ArrivedPhoenixSacramento
-4
Sep 8, 2026ArrivedChicagoPhoenix
-11
Sep 8, 2026ArrivedChicagoSt Louis
0
Sep 7, 2026ArrivedSt LouisPhoenix
-20
Sep 6, 2026ArrivedLas VegasColumbus
-15
Sep 5, 2026ArrivedSt LouisPhoenix
-22
Sep 4, 2026ArrivedSt LouisPhoenix
-13
Sep 1, 2026ArrivedPhoenixSacramento
-4
Aug 30, 2026ArrivedLas VegasColumbus
28
Aug 26, 2026ArrivedPhoenixSacramento
0
Aug 25, 2026ArrivedPhoenixSacramento
-18

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