Southwest Airlines
Is WN4539 delayed?
Service date: · Scheduled departure date (UTC)
Arrived
14 min early
Official source · Updated
Departure
San Jose
SJC
Actual
Scheduled 15:44
Sep 20
Arrival
Denver
DEN
Actual
Scheduled 11:47
Sep 20
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
SJCDEN
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 14 min early
SJC → DEN
- 16 min early
DAL → VPS
- 4 min early
ABQ → DAL
- 51 min late
SAN → SMF
- 11 min early
SAN → SMF
Flight history and details
Aug 22, 2026 — Sep 21, 2026
- Observed arrivals
- 12
- Arrivals over 15 minutes late
- 1
- 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 20, 2026Arrived | San Jose | Denver | -14 | |
| Sep 19, 2026Arrived | Dallas | Valparaiso | -16 | |
| Sep 19, 2026Arrived | Albuquerque | Dallas | -4 | |
| Sep 16, 2026Arrived | San Diego | Sacramento | 51 | |
| Sep 15, 2026Arrived | San Diego | Sacramento | -11 | |
| Sep 9, 2026Arrived | San Diego | Sacramento | -2 | |
| Sep 8, 2026Arrived | San Diego | Sacramento | -11 | |
| Sep 5, 2026Arrived | Dallas | Valparaiso | -1 | |
| Sep 5, 2026Arrived | Albuquerque | Dallas | 3 | |
| Sep 1, 2026Arrived | San Diego | Sacramento | 7 | |
| Aug 26, 2026Arrived | San Diego | Sacramento | 2 | |
| Aug 25, 2026Arrived | San Diego | Sacramento | -23 |