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Southwest Airlines

Is WN439 delayed?

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

Arrived

26 min late

Updated

Departure

Baltimore

BWI

Actual

Scheduled 21:30

Aug 23

Arrival

Louisville

SDF

Actual

Scheduled 03:10

Aug 24

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.

  • DEN → BZN

    12 min late

  • BWI → SDF

    41 min late

  • BWI → SDF

    32 min late

  • BWI → SDF

    9 min late

  • BWI → SDF

    83 min late
Flight history and details

Aug 18, 2026 — Sep 17, 2026

Observed arrivals
21
Arrivals over 15 minutes late
4
Observed cancellations
1
Observed occurrences
26

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

WN439 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 17, 2026ArrivedDenverBozeman
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12
Sep 16, 2026ArrivedBaltimoreLouisville
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41
Sep 15, 2026ArrivedBaltimoreLouisville
32
Sep 13, 2026ArrivedBaltimoreLouisville
9
Sep 12, 2026ArrivedBaltimoreLouisville
83
Sep 11, 2026ArrivedDenverBozeman
10
Sep 10, 2026ArrivedDenverBozeman
8
Sep 8, 2026ArrivedBaltimoreLouisville
-9
Sep 7, 2026ArrivedDenverBozeman
-6
Sep 6, 2026ArrivedBaltimoreLouisville
-15
Sep 5, 2026ArrivedBaltimoreLouisville
-21
Sep 4, 2026ArrivedDenverBozeman
-13
Sep 2, 2026CancelledBaltimoreLouisvilleNot available
Not available
Sep 1, 2026ArrivedBaltimoreLouisville
-21
Aug 31, 2026ArrivedDenverBozeman
-12
Aug 30, 2026ArrivedBaltimoreLouisville
-4
Aug 29, 2026ArrivedBaltimoreLouisville
-14
Aug 28, 2026ArrivedDenverBozeman
-6
Aug 27, 2026ArrivedDenverBozeman
11
Aug 26, 2026ArrivedBaltimoreLouisville
-21
Aug 25, 2026ArrivedBaltimoreLouisville
10
Aug 23, 2026ArrivedBaltimoreLouisville
26

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