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Southwest Airlines

Is WN4157 delayed?

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

Arrived

49 min late

Official source · Updated

Departure

St Louis

STL

Scheduled

Not available

Arrival

San Francisco

SFO

Actual

Scheduled 10:35

Sep 7

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.

  • STL → SFO

    64 min late

  • STL → SFO

    90 min late

  • STL → SFO

    8 min late

  • STL → SFO

    8 min early

  • STL → SFO

    5 min late
Flight history and details

Aug 21, 2026 — Sep 20, 2026

Observed arrivals
12
Arrivals over 15 minutes late
4
Observed cancellations
0
Observed occurrences
12

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

WN4157 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 18, 2026ArrivedSt LouisSan Francisco
64
Sep 17, 2026ArrivedSt LouisSan Francisco
90
Sep 16, 2026ArrivedSt LouisSan Francisco
8
Sep 15, 2026ArrivedSt LouisSan Francisco
-8
Sep 14, 2026ArrivedSt LouisSan Francisco
5
Sep 11, 2026ArrivedSt LouisSan Francisco
59
Sep 10, 2026ArrivedSt LouisSan Francisco
9
Sep 9, 2026ArrivedSt LouisSan Francisco
4
Sep 8, 2026ArrivedSt LouisSan Francisco
-7
Sep 7, 2026ArrivedSt LouisSan Francisco
49
Sep 6, 2026ArrivedBurbankOakland
-13
Sep 4, 2026ArrivedSt LouisSan Francisco
1

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