Southwest Airlines
Is WN4439 delayed?
Service date: · Scheduled departure date (America/Los_Angeles)
Arrived
58 min late
Official source · Updated
Departure
San Diego
SAN
Actual
Scheduled 20:18
Sep 14
Arrival
Las Vegas
LAS
Actual
Scheduled 21:18
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.
- 58 min late
SAN → LAS
- 22 min early
SAN → LAS
- 35 min late
SAN → LAS
- 15 min late
SAN → LAS
- 77 min late
SAN → LAS
Flight history and details
Aug 17, 2026 — Sep 16, 2026
- Observed arrivals
- 10
- Arrivals over 15 minutes late
- 8
- Observed cancellations
- 0
- Observed occurrences
- 13
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 | San Diego | Las Vegas | 58 | |
| Sep 13, 2026Arrived | San Diego | Las Vegas | -22 | |
| Sep 11, 2026Arrived | San Diego | Las Vegas | 35 | |
| Sep 10, 2026Arrived | San Diego | Las Vegas | 15 | |
| Sep 7, 2026Arrived | San Diego | Las Vegas | 77 | |
| Sep 4, 2026Arrived | San Diego | Las Vegas | 97 | |
| Aug 31, 2026Arrived | San Diego | Las Vegas | 48 | |
| Aug 30, 2026Arrived | San Diego | Las Vegas | -8 | |
| Aug 27, 2026Arrived | San Diego | Las Vegas | 35 | |
| Aug 21, 2026Arrived | San Diego | Las Vegas | 39 |