Southwest Airlines
Is WN4128 delayed?
Service date: · Scheduled departure date (America/Los_Angeles)
Arrived
<1 min late
Official source · Updated
Departure
Las Vegas
LAS
Actual
Scheduled 17:52
Sep 14
Arrival
Los Angeles
LAX
Actual
Scheduled 18:41
Sep 14
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.
- <1 min late
LAS → LAX
- 30 min late
LAS → LAX
- 26 min late
LAX → AUS
- 31 min late
LAS → LAX
- 62 min late
LAX → AUS
Flight history and details
Aug 17, 2026 — Sep 16, 2026
- Observed arrivals
- 16
- Arrivals over 15 minutes late
- 8
- Observed cancellations
- 0
- Observed occurrences
- 24
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 | Las Vegas | Los Angeles | 0 | |
| Sep 11, 2026Arrived | Las Vegas | Los Angeles | 30 | |
| Sep 10, 2026Arrived | Los Angeles | Austin | 26 | |
| Sep 10, 2026Arrived | Las Vegas | Los Angeles | 31 | |
| Sep 7, 2026Arrived | Los Angeles | Austin | 62 | |
| Sep 7, 2026Arrived | Las Vegas | Los Angeles | 27 | |
| Sep 4, 2026Arrived | Los Angeles | Austin | 31 | |
| Sep 4, 2026Arrived | Las Vegas | Los Angeles | 40 | |
| Sep 3, 2026Arrived | Los Angeles | Austin | 97 | |
| Aug 31, 2026Arrived | Los Angeles | Austin | 8 | |
| Aug 28, 2026Arrived | Los Angeles | Austin | 12 | |
| Aug 27, 2026Arrived | Los Angeles | Austin | -2 | |
| Aug 24, 2026Arrived | Los Angeles | Austin | 12 | |
| Aug 24, 2026Arrived | Las Vegas | Los Angeles | 4 | |
| Aug 21, 2026Arrived | Los Angeles | Austin | -3 | |
| Aug 20, 2026Arrived | Los Angeles | Austin | -7 |