Southwest Airlines
Is WN4578 delayed?
No, WN4578 landed in Denver on schedule (5 min behind), at 09:17 on Nov 13 (as of Nov 13, 16:18 UTC).
Usually on time: arrived within 15 min of schedule on 13 of the last 22 flights.
On schedule (5 min behind)
Official source · Updated
Departure
San Francisco
SFO
Actual
Scheduled 06:13
Nov 13
Arrival
Denver
DEN
Actual
Scheduled 09:12
Nov 13
Times shown in airport local time
Service date: · Scheduled departure date (America/Los_Angeles)
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.
- On schedule (5 min behind)
San Francisco → Denver
- 13 min early
San Francisco → Denver
- 21 min early
San Francisco → Denver
- 21 min early
San Francisco → Denver
- 17 min early
San Francisco → Denver
Is WN4578 usually late?
Period: Oct 15, 2026 – Nov 14, 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. Compares scheduled and actual arrival times. Cancelled and diverted flights are left out. Some flights may be missing.
At the airports today
San Francisco (SFO) departures
- Left more than 15 min late
- 26 of 56
- Cancelled today
- 42
Denver (DEN) departures
- Left more than 15 min late
- 40 of 88
- Cancelled today
- 55
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Nov 13, 2026Arrived | San Francisco | Denver | 5 | |
| Nov 12, 2026Arrived | San Francisco | Denver | -13 | |
| Nov 11, 2026Arrived | San Francisco | Denver | -21 | |
| Nov 10, 2026Arrived | San Francisco | Denver | -21 | |
| Nov 9, 2026Arrived | San Francisco | Denver | -17 | |
| Nov 8, 2026Arrived | San Francisco | Denver | -6 | |
| Nov 6, 2026Arrived | San Francisco | Denver | 0 | |
| Nov 5, 2026Arrived | San Francisco | Denver | -10 | |
| Nov 4, 2026Arrived | San Francisco | Denver | -10 | |
| Nov 3, 2026Arrived | San Francisco | Denver | -15 | |
| Nov 2, 2026Arrived | San Francisco | Denver | -11 | |
| Nov 1, 2026Arrived | San Francisco | Denver | -22 | |
| Oct 30, 2026Arrived | Austin | Las Vegas | 26 | |
| Oct 29, 2026Arrived | Austin | Las Vegas | 24 | |
| Oct 26, 2026Arrived | Austin | Las Vegas | 85 | |
| Oct 25, 2026Arrived | Austin | Las Vegas | 16 | |
| Oct 23, 2026Arrived | Austin | Las Vegas | 61 | |
| Oct 22, 2026Arrived | Austin | Las Vegas | 64 | |
| Oct 19, 2026Arrived | Austin | Las Vegas | 26 | |
| Oct 18, 2026Arrived | Austin | Las Vegas | 29 | |
| Oct 16, 2026Arrived | Austin | Las Vegas | -8 | |
| Oct 15, 2026Arrived | Austin | Las Vegas | 21 |