Southwest Airlines
Is WN4156 delayed?
Each route and date is shown separately. Confirm that both airports match your booking.
Service date: · Scheduled departure date (UTC)
36 min late
Official source · Updated
Departure
Portland
PDX
Actual
Sep 22
Arrival
Denver
DEN
Actual
Sep 22
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 (UTC)
13 min late
Official source · Updated
Departure
Sacramento
SMF
Actual
Sep 22
Arrival
Portland
PDX
Actual
Sep 22
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 (UTC)
59 min late
Official source · Updated
Departure
Sacramento
SMF
Actual
Sep 22
Arrival
Portland
PDX
Actual
Sep 22
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 36 min late
PDX → DEN
- 13 min late
SMF → PDX
- 59 min late
SMF → PDX
- 56 min late
SAN → SMF
- 16 min early
PDX → DEN
Flight history and details
Aug 24, 2026 — Sep 23, 2026
- Observed arrivals
- 27
- Arrivals over 15 minutes late
- 12
- Observed cancellations
- 0
- Observed occurrences
- 29
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 22, 2026Arrived | Portland | Denver | 36 | |
| Sep 22, 2026Arrived | Sacramento | Portland | 13 | |
| Sep 22, 2026Arrived | Sacramento | Portland | 59 | |
| Sep 21, 2026Arrived | San Diego | Sacramento | 56 | |
| Sep 19, 2026Arrived | Portland | Denver | -16 | |
| Sep 19, 2026Arrived | Sacramento | Portland | -3 | |
| Sep 18, 2026Arrived | San Diego | Sacramento | 3 | |
| Sep 18, 2026Arrived | Sacramento | Portland | 41 | |
| Sep 17, 2026Arrived | San Diego | Sacramento | 23 | |
| Sep 16, 2026Arrived | Portland | Denver | 46 | |
| Sep 16, 2026Arrived | Sacramento | Portland | 6 | |
| Sep 15, 2026Arrived | Portland | Denver | 13 | |
| Sep 15, 2026Arrived | Sacramento | Portland | 10 | |
| Sep 12, 2026Arrived | Portland | Denver | -11 | |
| Sep 12, 2026Arrived | Sacramento | Portland | -1 | |
| Sep 11, 2026Arrived | San Diego | Sacramento | 5 | |
| Sep 11, 2026Arrived | Sacramento | Portland | 30 | |
| Sep 10, 2026Arrived | San Diego | Sacramento | 27 | |
| Sep 8, 2026Arrived | Portland | Denver | 5 | |
| Sep 8, 2026Arrived | Sacramento | Portland | 13 | |
| Sep 7, 2026Arrived | San Diego | Sacramento | 20 | |
| Sep 5, 2026Arrived | Portland | Denver | 6 | |
| Sep 4, 2026Arrived | San Diego | Sacramento | 266 | |
| Aug 31, 2026Arrived | San Diego | Sacramento | 0 | |
| Aug 28, 2026Arrived | San Diego | Sacramento | 10 | |
| Aug 27, 2026Arrived | San Diego | Sacramento | 41 | |
| Aug 24, 2026Arrived | San Diego | Sacramento | 16 |