Southwest Airlines
Is WN3964 delayed?
No — WN3964 landed in San Diego 12 min early, at 16:16 on Sep 30 (as of Sep 30, 23:16 UTC).
Often late: arrived more than 15 min after schedule on 18 of the last 23 flights.
12 min early
Official source · Updated
Departure
Salt Lake City
SLC
Actual
Scheduled 15:55
Sep 30
Arrival
San Diego
SAN
Actual
Scheduled 16:29
Sep 30
Times shown in airport local time
Service date: · Scheduled departure date (America/Denver)
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.
- 12 min early
Salt Lake City → San Diego
- On schedule (7 min behind)
Salt Lake City → San Diego
- 64 min late
Salt Lake City → San Diego
- On schedule (8 min behind)
Salt Lake City → San Diego
- 28 min late
Salt Lake City → San Diego
Is WN3964 usually late?
Observation window: Sep 3, 2026 – Oct 3, 2026
On time means arriving no more than 15 minutes after the scheduled time; late means more than 15 minutes after. Cancelled and diverted flights are counted apart from arrivals. Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
At the airports today
Salt Lake City (SLC) departures
- Left more than 15 min late
- 1 of 3
- Cancelled today
- 0
San Diego (SAN) departures
No departures recorded yet today.
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 30, 2026Arrived | Salt Lake City | San Diego | -12 | |
| Sep 29, 2026Arrived | Salt Lake City | San Diego | 7 | |
| Sep 28, 2026Arrived | Salt Lake City | San Diego | 64 | |
| Sep 26, 2026Arrived | Salt Lake City | San Diego | 8 | |
| Sep 25, 2026Arrived | Salt Lake City | San Diego | 28 | |
| Sep 24, 2026Arrived | Salt Lake City | San Diego | 30 | |
| Sep 23, 2026Arrived | Salt Lake City | San Diego | 15 | |
| Sep 22, 2026Arrived | Salt Lake City | San Diego | 21 | |
| Sep 21, 2026Arrived | Salt Lake City | San Diego | 37 | |
| Sep 19, 2026Arrived | Salt Lake City | San Diego | -6 | |
| Sep 18, 2026Arrived | Salt Lake City | San Diego | 120 | |
| Sep 17, 2026Arrived | Salt Lake City | San Diego | 57 | |
| Sep 16, 2026Arrived | Salt Lake City | San Diego | 17 | |
| Sep 15, 2026Arrived | Salt Lake City | San Diego | 41 | |
| Sep 14, 2026Arrived | Salt Lake City | San Diego | 68 | |
| Sep 11, 2026Arrived | Salt Lake City | San Diego | 70 | |
| Sep 10, 2026Arrived | Salt Lake City | San Diego | 25 | |
| Sep 9, 2026Arrived | Salt Lake City | San Diego | 8 | |
| Sep 8, 2026Arrived | Salt Lake City | San Diego | 15 | |
| Sep 7, 2026Arrived | Salt Lake City | San Diego | 36 | |
| Sep 5, 2026Arrived | Salt Lake City | San Diego | 31 | |
| Sep 4, 2026Arrived | Salt Lake City | San Diego | 142 | |
| Sep 3, 2026Arrived | Salt Lake City | San Diego | 132 |
Email me if WN3964 runs late
We email you if your next WN3964 flight in the coming day is more than 15 minutes late, cancelled or diverted. Alerts last 30 days. No account needed.