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Flight records through . Security counts through .

Which SFO to CLD flight is punctual? United 5510, 9:15 am.

80% on time across 92 flights in the last 3 months, never cancelled.

Find your flightSFO security

  • UA 5510

    80%

    on time

    9:15 am

    0% cancelled

  • UA 5508

    74%

    on time

    6:37 pm

    0% cancelled

2 regular flights, June to August 2026. Few flights on this route, so these shares move a lot from month to month.

When do the flights leave? 2 regular flights, 9:15 am to 6:37 pm.

None was cancelled in the last 3 months.

Flight records,

  1. UA 5510 9:15 am, 0% cancelled 80%
  2. UA 5508 6:37 pm, 0% cancelled 74%

What time should I fly? The 9 am departures.

84% landed on time; at 6 pm, 74%. Tuesday was the best day, Thursday the worst.

Flight records,

DepartsLanded on time
9 am84%
10 am76%
6 pm74%

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.