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Flight records through . Security counts through .

Which SFO to SAN flight is punctual? United 1980, 6:38 am.

90% on time across 48 flights in the last 3 months, never cancelled.

Find your flightSFO security
DepartsFlightOn time
6:38 amUA 198090%
9:00 pmUA 44286%
6:00 amAS 345578%
8:15 amUA 44472%
7:55 amAS 155770%
8:55 amWN 423965%
7:00 pmUA 134364%
9:00 pmUA 186364%
8 of 30 regular flights, ranked by arrivals on time, June to August 2026.

Which airline is most reliable? United, by a distance.

United landed on time 72% of the time, Alaska 60%.

Flight records,

  • United

    72%

    on time

    0.3% cancelled

  • Alaska

    60%

    on time

    3.3% cancelled

  • Southwest

    47%

    on time

    1.4% cancelled

When do the flights leave? 30 regular flights, 6 am to 10:42 pm.

WN 3525 was cancelled most often, 8% of the time.

Flight records,

  1. UA 1980 6:38 am, 0% cancelled 90%
  2. UA 444 8:15 am, 0% cancelled 72%
  3. UA 2177 10:05 am, 0% cancelled 60%
  4. UA 1257 12:21 pm, 0% cancelled 62%
  5. UA 1668 2:10 pm, 0% cancelled 33%
  6. UA 1147 2:20 pm, 0% cancelled 42%
  7. UA 2855 2:20 pm, 0% cancelled 54%
  8. UA 1561 4:47 pm, 0% cancelled 53%
  9. UA 1577 6:55 pm, 0% cancelled 48%
  10. UA 1343 7:00 pm, 0% cancelled 64%
  11. UA 1863 9:00 pm, 0% cancelled 64%
  12. UA 442 9:00 pm, 0% cancelled 86%
  13. UA 2142 10:42 pm, 0% cancelled 62%
  1. AS 3455 6:00 am, 1% cancelled 78%
  2. AS 1557 7:55 am, 4% cancelled 70%
  3. AS 3426 10:32 am, 6% cancelled 6%
  4. AS 3479 11:52 am, 1% cancelled 49%
  5. AS 3482 1:21 pm, 0% cancelled 39%
  6. AS 3337 4:24 pm, 3% cancelled 48%
  7. AS 2058 6:42 pm, 6% cancelled 22%
  1. WN 4239 8:55 am, 5% cancelled 65%
  2. WN 3496 11:00 am, 0% cancelled 7%
  3. WN 3525 12:30 pm, 8% cancelled 39%
  4. WN 4242 2:00 pm, 0% cancelled 0%
  5. WN 3652 4:00 pm, 0% cancelled 8%
  6. WN 4328 4:00 pm, 0% cancelled 11%
  7. WN 4681 6:10 pm, 3% cancelled 8%
  8. WN 4532 6:15 pm, 0% cancelled 54%
  9. WN 3653 8:30 pm, 0% cancelled 20%

What time should I fly? The 6 am departures.

92% landed on time; at 3 pm, 40%. Saturday was the best day, Thursday the worst.

Flight records,

DepartsLanded on time
5 am85%
6 am92%
7 am85%
8 am76%
9 am74%
10 am45%
11 am54%
12 pm54%
1 pm56%
2 pm51%
3 pm40%
4 pm49%
5 pm64%
6 pm46%
7 pm58%
8 pm51%
9 pm60%
10 pm60%

When is SFO security busiest? 7 am, then 9 am to noon.

Calmest around 4 pm. San Francisco 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

Thursday, 10 am

5,960

people screened, all terminals.