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Flight records through . Security counts through .

Which SFO to STL flight is punctual? United 2090, 12:12 pm.

78% on time across 71 flights in the last 3 months, never cancelled.

Find your flightSFO security

  • UA 2090

    78%

    on time

    12:12 pm

    0% cancelled

  • WN 1417

    22%

    on time

    10:50 am

    0% cancelled

  • WN 3564

    14%

    on time

    12:00 pm

    0% cancelled

3 regular flights, June to August 2026.

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

United landed on time 76% of the time, Southwest 40%.

Flight records,

  • United

    76%

    on time

    1.5% cancelled

  • Southwest

    40%

    on time

    0.3% cancelled

When do the flights leave? 3 regular flights, 10:50 am to 12:12 pm.

None was cancelled in the last 3 months.

Flight records,

  1. UA 2090 12:12 pm, 0% cancelled 78%
  1. WN 1417 10:50 am, 0% cancelled 22%
  2. WN 3564 12:00 pm, 0% cancelled 14%

What time should I fly? The 9 am departures.

82% landed on time; at 1 pm, 36%. Tuesday was the best day, Monday the worst.

Flight records,

DepartsLanded on time
9 am82%
10 am64%
11 am55%
12 pm50%
1 pm36%
4 pm71%
11 pm73%

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.