Is WN4521 delayed?
No delay reported yet — WN4521 is scheduled to leave San Francisco at 18:53 on Sep 28 and reach Burbank at 19:50 (as of Sep 28, 20:14 UTC). Over its last 21 recorded arrivals, 8 landed more than 15 min late.
No live update yet
Showing the published schedule until live times are reported.
Update time unavailable
Departure
San Francisco
SFO
Scheduled
Sep 28
Arrival
Burbank
BUR
Scheduled
Sep 28
Times shown in airport local time
Service date: · Scheduled departure date (America/Los_Angeles)
Think WN4521 runs late today? Delayed is trading at 42¢ — pays out x2.38.
Will Southwest Airlines SWA 4521 from San Francisco to Burbank arrive on time, be delayed, or be cancelled on Sep 28?Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 12 min early
Palm Springs → Sacramento
- 44 min late
San Francisco → Burbank
- 67 min late
San Francisco → Burbank
- 16 min early
San Francisco → Burbank
- On schedule (14 min behind)
San Francisco → Burbank
Flight history and details
Aug 29, 2026 — Sep 28, 2026
- Observed arrivals
- 21
- Arrivals over 15 minutes late
- 8
- Observed cancellations
- 0
- Observed occurrences
- 23
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 26, 2026Arrived | Palm Springs | Sacramento | -12 | |
| Sep 25, 2026Arrived | San Francisco | Burbank | 44 | |
| Sep 24, 2026Arrived | San Francisco | Burbank | 67 | |
| Sep 23, 2026Arrived | San Francisco | Burbank | -16 | |
| Sep 22, 2026Arrived | San Francisco | Burbank | 14 | |
| Sep 21, 2026Arrived | San Francisco | Burbank | -4 | |
| Sep 19, 2026Arrived | Palm Springs | Sacramento | -21 | |
| Sep 18, 2026Arrived | San Francisco | Burbank | 78 | |
| Sep 17, 2026Arrived | San Francisco | Burbank | 147 | |
| Sep 16, 2026Arrived | San Francisco | Burbank | -1 | |
| Sep 15, 2026Arrived | San Francisco | Burbank | -18 | |
| Sep 14, 2026Arrived | San Francisco | Burbank | 9 | |
| Sep 11, 2026Arrived | San Francisco | Burbank | -18 | |
| Sep 10, 2026Arrived | San Francisco | Burbank | 25 | |
| Sep 9, 2026Arrived | San Francisco | Burbank | -15 | |
| Sep 8, 2026Arrived | San Francisco | Burbank | 4 | |
| Sep 7, 2026Arrived | San Francisco | Burbank | -5 | |
| Sep 5, 2026Arrived | Palm Springs | Sacramento | -17 | |
| Sep 4, 2026Arrived | San Francisco | Burbank | 299 | |
| Sep 3, 2026Arrived | San Francisco | Burbank | 33 | |
| Aug 31, 2026Arrived | San Francisco | Burbank | 67 |