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Southwest Airlines

Is WN399 delayed?

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

Arrived

23 min early

Official source · Updated

Departure

Denver

DEN

Actual

Scheduled 08:00

Aug 30

Arrival

Phoenix

PHX

Actual

Scheduled 09:05

Aug 30

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Actual

Arrival · UTC

Scheduled
Estimated
Actual
Route overview: Denver → PhoenixDENPHX
Route overview

Recent arrivals

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

  • DEN → PHX

    35 min late

  • DEN → PHX

    11 min early

  • DEN → PHX

    13 min early

  • DEN → PHX

    24 min early

  • DEN → PHX

    24 min early
Flight history and details

Aug 19, 2026 — Sep 18, 2026

Observed arrivals
17
Arrivals over 15 minutes late
2
Observed cancellations
0
Observed occurrences
17

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

WN399 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 17, 2026ArrivedDenverPhoenix
35
Sep 16, 2026ArrivedDenverPhoenix
-11
Sep 15, 2026ArrivedDenverPhoenix
-13
Sep 13, 2026ArrivedDenverPhoenix
-24
Sep 12, 2026ArrivedDenverPhoenix
-24
Sep 9, 2026ArrivedDenverPhoenix
-24
Sep 8, 2026ArrivedDenverPhoenix
-15
Sep 6, 2026ArrivedDenverPhoenix
-24
Sep 5, 2026ArrivedDenverPhoenix
-33
Sep 2, 2026ArrivedDenverPhoenix
-16
Sep 1, 2026ArrivedDenverPhoenix
-14
Aug 30, 2026ArrivedDenverPhoenix
-23
Aug 29, 2026ArrivedDenverPhoenix
-26
Aug 26, 2026ArrivedDenverPhoenix
-19
Aug 25, 2026ArrivedDenverPhoenix
-14
Aug 23, 2026ArrivedDenverPhoenix
-21
Aug 22, 2026ArrivedDenverPhoenix
74

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