Southwest Airlines

Is WN4991 delayed?

Each route and date is shown separately. Confirm that both airports match your booking.

Service date: Sep 7, 2026 · Scheduled departure date (UTC)

Arrived

10 min late

Official source · Updated Sep 7, 2026, 23:10 UTC

Departure

Tucson

TUS

Actual

21:35~~21:14~~

Sep 7

Arrival

Denver

DEN

Actual

16:57~~16:47~~

Sep 7

Times shown in airport local time

Flight details

Departure · UTC

Scheduled: Sep 7, 2026, 21:14 UTC
Estimated: Not available
Actual: Sep 7, 2026, 21:35 UTC

Arrival · UTC

Scheduled: Sep 7, 2026, 22:47 UTC
Estimated: Not available
Actual: Sep 7, 2026, 22:57 UTC

Service date: Sep 7, 2026 · Scheduled departure date (America/Phoenix)

Arrived

15 min late

Official source · Updated Sep 7, 2026, 20:30 UTC

Departure

Phoenix

PHX

Scheduled

12:48

Sep 7

Arrival

Tucson

TUS

Actual

20:30~~20:15~~

Sep 7

Times shown in airport local time

Flight details

Departure · UTC

Scheduled: Sep 7, 2026, 19:48 UTC
Estimated: Not available
Actual: Not available

Arrival · UTC

Scheduled: Sep 7, 2026, 20:15 UTC
Estimated: Not available
Actual: Sep 7, 2026, 20:30 UTC

TUSDEN

PHXTUS

Recent arrivals

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

Mon, Sep 21, 2026
TUS → DEN
4 min late
Mon, Sep 21, 2026
PHX → TUS
5 min late
Fri, Sep 18, 2026
TUS → DEN
64 min late
Fri, Sep 18, 2026
PHX → TUS
5 min early
Thu, Sep 17, 2026
TUS → DEN
6 min late

Flight history and details

Aug 23, 2026 — Sep 22, 2026

Observed arrivals: 17
Arrivals over 15 minutes late: 3
Observed cancellations: 0
Observed occurrences: 20

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

WN4991 Recent arrival history
Service date	Departure	Arrival	Actual	Arrival delay (minutes)
Sep 21, 2026Arrived	Tucson	Denver	Sep 21, 2026, 23:02 UTC	4
Sep 21, 2026Arrived	Phoenix	Tucson	Sep 21, 2026, 20:31 UTC	5
Sep 18, 2026Arrived	Tucson	Denver	Sep 19, 2026, 00:01 UTC	64
Sep 18, 2026Arrived	Phoenix	Tucson	Sep 18, 2026, 20:20 UTC	-5
Sep 17, 2026Arrived	Tucson	Denver	Sep 17, 2026, 22:53 UTC	6
Sep 17, 2026Arrived	Phoenix	Tucson	Sep 17, 2026, 20:24 UTC	9
Sep 14, 2026Arrived	Tucson	Denver	Sep 14, 2026, 22:51 UTC	4
Sep 14, 2026Arrived	Phoenix	Tucson	Sep 14, 2026, 20:24 UTC	9
Sep 10, 2026Arrived	Tucson	Denver	Sep 10, 2026, 22:44 UTC	-2
Sep 10, 2026Arrived	Phoenix	Tucson	Sep 10, 2026, 20:09 UTC	-18
Sep 7, 2026Arrived	Tucson	Denver	Sep 7, 2026, 22:57 UTC	10
Sep 7, 2026Arrived	Phoenix	Tucson	Sep 7, 2026, 20:30 UTC	15
Sep 4, 2026Arrived	Tucson	Denver	Sep 4, 2026, 23:06 UTC	19
Sep 4, 2026Arrived	Phoenix	Tucson	Sep 4, 2026, 20:35 UTC	20
Aug 31, 2026Arrived	Phoenix	Tucson	Aug 31, 2026, 20:29 UTC	9
Aug 29, 2026Arrived	Baltimore	Fort Lauderdale	Aug 29, 2026, 15:15 UTC	0
Aug 27, 2026Arrived	Phoenix	Tucson	Aug 27, 2026, 20:12 UTC	-8