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Southwest Airlines

Is WN556 delayed?

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

Arrived

58 min late

Official source · Updated

Departure

Las Vegas

LAS

Actual

Scheduled 12:50

Aug 28

Arrival

Chicago

MDW

Actual

Scheduled 23:25

Aug 29

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Actual

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.

  • LAS → STL

    30 min late

  • LAS → MDW

    9 min early

  • LAS → STL

    2 min late

  • LAS → MDW

    12 min early

  • LAS → MDW

    19 min early
Flight history and details

Aug 18, 2026 — Sep 17, 2026

Observed arrivals
21
Arrivals over 15 minutes late
6
Observed cancellations
0
Observed occurrences
25

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

WN556 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 16, 2026ArrivedLas VegasSt Louis
30
Sep 14, 2026ArrivedLas VegasChicago
-9
Sep 13, 2026ArrivedLas VegasSt Louis
2
Sep 11, 2026ArrivedLas VegasChicago
-12
Sep 10, 2026ArrivedLas VegasChicago
-19
Sep 8, 2026ArrivedLas VegasSt Louis
4
Sep 7, 2026ArrivedLas VegasChicago
-18
Sep 5, 2026ArrivedSan JoseDenver
-2
Sep 5, 2026ArrivedBurbankSan Jose
-24
Sep 4, 2026ArrivedLas VegasChicago
-2
Sep 3, 2026ArrivedLas VegasChicago
31
Sep 2, 2026ArrivedLas VegasSt Louis
-31
Sep 1, 2026ArrivedLas VegasSt Louis
-18
Aug 31, 2026ArrivedLas VegasChicago
37
Aug 30, 2026ArrivedLas VegasSt Louis
-9
Aug 28, 2026ArrivedLas VegasChicago
58
Aug 27, 2026ArrivedLas VegasChicago
112
Aug 26, 2026ArrivedLas VegasSt Louis
11
Aug 25, 2026ArrivedLas VegasSt Louis
-21
Aug 24, 2026ArrivedLas VegasChicago
34
Aug 23, 2026ArrivedLas VegasSt Louis
-5

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