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Flight records through . Security counts through .

Which STS to SAN flight is punctual? Southwest 3900, 6 am.

93% on time across 28 flights in the last 3 months, never cancelled.

Find your flightSTS security
DepartsFlightOn time
6:00 amWN 390093%
6:26 amAS 331587%
6:00 amWN 481387%
11:04 amAS 304752%
5:56 pmAS 225739%
5:10 pmWN 399431%
6 of 6 regular flights, ranked by arrivals on time, June to August 2026.

Which airline is most reliable? Southwest, ahead of Alaska.

Southwest landed on time 74% of the time, Alaska 67%.

Flight records,

  • Southwest

    74%

    on time

    0.4% cancelled

  • Alaska

    67%

    on time

    5.0% cancelled

When do the flights leave? 6 regular flights, 6 am to 5:56 pm.

AS 3315 was cancelled most often, 8% of the time.

Flight records,

  1. WN 3900 6:00 am, 0% cancelled 93%
  2. WN 4813 6:00 am, 2% cancelled 87%
  3. WN 3994 5:10 pm, 0% cancelled 31%
  1. AS 3315 6:26 am, 8% cancelled 87%
  2. AS 3047 11:04 am, 1% cancelled 52%
  3. AS 2257 5:56 pm, 4% cancelled 39%

What time should I fly? The 7 am departures.

87% landed on time; at 5 pm, 38%. Wednesday was the best day, Thursday the worst.

Flight records,

DepartsLanded on time
6 am85%
7 am87%
9 am80%
10 am66%
11 am53%
2 pm70%
3 pm75%
4 pm56%
5 pm38%
6 pm63%
7 pm58%

When is STS security busiest? 5 am, then 11 am to noon.

Calmest around 5 pm. Santa Rosa security, hour by hour.

Security counts,

4a8a12p4p8p
Mon
Tue
Wed
Thu
Fri
Sat
Sun
MonTueWedThuFriSatSun
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p

Saturday, 11 am

230

people screened, all terminals.