Southwest Airlines
Is WN4991 delayed?
Each route and date is shown separately. Confirm that both airports match your booking.
Service date: · Scheduled departure date (UTC)
Arrived
4 min late
Official source · Updated
Departure
Tucson
TUS
Actual
Scheduled 21:14
Sep 14
Arrival
Denver
DEN
Actual
Scheduled 16:47
Sep 14
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
Service date: · Scheduled departure date (America/Phoenix)
Arrived
9 min late
Official source · Updated
Departure
Phoenix
PHX
Scheduled
Sep 14
Arrival
Tucson
TUS
Actual
Scheduled 20:15
Sep 14
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
TUSDEN
PHXTUS
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 4 min late
TUS → DEN
- 9 min late
PHX → TUS
- 2 min early
TUS → DEN
- 18 min early
PHX → TUS
- 10 min late
TUS → DEN
Flight history and details
Aug 17, 2026 — Sep 16, 2026
- Observed arrivals
- 12
- Arrivals over 15 minutes late
- 2
- Observed cancellations
- 0
- Observed occurrences
- 16
Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 14, 2026Arrived | Tucson | Denver | 4 | |
| Sep 14, 2026Arrived | Phoenix | Tucson | 9 | |
| Sep 10, 2026Arrived | Tucson | Denver | -2 | |
| Sep 10, 2026Arrived | Phoenix | Tucson | -18 | |
| Sep 7, 2026Arrived | Tucson | Denver | 10 | |
| Sep 7, 2026Arrived | Phoenix | Tucson | 15 | |
| Sep 4, 2026Arrived | Tucson | Denver | 19 | |
| Sep 4, 2026Arrived | Phoenix | Tucson | 20 | |
| Aug 31, 2026Arrived | Phoenix | Tucson | 9 | |
| Aug 29, 2026Arrived | Baltimore | Fort Lauderdale | 0 | |
| Aug 27, 2026Arrived | Phoenix | Tucson | -8 | |
| Aug 22, 2026Arrived | Baltimore | Fort Lauderdale | -4 |