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Southwest Airlines

Is WN4143 delayed?

No — WN4143 landed in Chicago on schedule (15 min behind), at 12:10 on Oct 1 (as of Oct 1, 19:36 UTC).

Usually on time: arrived within 15 min of schedule on 16 of the last 19 flights.

Arrived

On schedule (15 min behind)

Official source · Updated

Departure

St Louis

STL

Actual

Scheduled 10:45

Oct 1

Arrival

Chicago

MDW

Actual

Scheduled 11:55

Oct 1

Times shown in airport local time

Service date: · Scheduled departure date (America/Chicago)

Market settled: On time.

View this flight’s marketHow this market settles

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual

Arrival · UTC

Scheduled
Estimated
Actual
View this flight’s market

Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.

Recent arrivals

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

  • St Louis → Chicago

    On schedule (15 min behind)

  • San Antonio → San Diego

    On schedule (12 min behind)

  • San Antonio → San Diego

    On schedule (6 min behind)

  • San Antonio → San Diego

    84 min late

  • San Antonio → San Diego

    On schedule (6 min behind)

Is WN4143 usually late?

Observation window: Sep 1, 2026 – Oct 1, 2026

Observed arrivals
19
On time
84%
of 19 arrivals
Late
16%
of 19 arrivals
Cancelled
0%
of 19 flights
Median arrival delay
2 min early
9 in 10 arrived within
60 min

On time means arriving no more than 15 minutes after the scheduled time; late means more than 15 minutes after. Cancelled and diverted flights are counted apart from arrivals. 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

Related flights

Other flights KSAT → SAN

Return flights SAN → KSAT

All Southwest Airlines flights

Flight history and details
WN4143 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Oct 1, 2026ArrivedSt LouisChicago
View this flight’s market
15
Sep 30, 2026ArrivedSan AntonioSan Diego12
Sep 29, 2026ArrivedSan AntonioSan Diego6
Sep 28, 2026ArrivedSan AntonioSan Diego84
Sep 27, 2026ArrivedSan AntonioSan Diego6
Sep 26, 2026ArrivedSan AntonioSan Diego4
Sep 25, 2026ArrivedSan AntonioSan Diego-2
Sep 24, 2026ArrivedSan AntonioSan Diego-4
Sep 23, 2026ArrivedSan AntonioSan Diego54
Sep 22, 2026ArrivedSan AntonioSan Diego-4
Sep 21, 2026ArrivedSan AntonioSan Diego-5
Sep 20, 2026ArrivedSan AntonioSan Diego-10
Sep 19, 2026ArrivedSan AntonioSan Diego2
Sep 18, 2026ArrivedSan AntonioSan Diego-5
Sep 17, 2026ArrivedSan AntonioSan Diego-9
Sep 16, 2026ArrivedSan AntonioSan Diego153
Sep 13, 2026ArrivedSan AntonioSan Diego-6
Sep 5, 2026ArrivedSan AntonioSan Diego-13
Sep 4, 2026ArrivedSan AntonioSan Diego-12

Email me if WN4143 runs late

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