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Flight records through . Security counts through .

Which SFO to ORD flight is punctual? United 2847, 12:35 am.

95% on time across 21 flights in the last 3 months, never cancelled.

Find your flightSFO security
DepartsFlightOn time
12:35 amUA 284795%
10:53 pmAA 211393%
6:05 amUA 209192%
5:05 amUA 200091%
11:30 pmUA 36887%
12:50 amUA 185085%
6:00 amAA 261485%
8:15 amUA 156878%
8 of 33 regular flights, ranked by arrivals on time, June to August 2026.

Which airline is most reliable? United, ahead of American.

United landed on time 76% of the time, American 70%.

Flight records,

  • United

    76%

    on time

    0.7% cancelled

  • American

    70%

    on time

    1.6% cancelled

When do the flights leave? 33 regular flights, 12:35 am to 11:30 pm.

AA 2543 was cancelled most often, 5% of the time.

Flight records,

  1. UA 2847 12:35 am, 0% cancelled 95%
  2. UA 1850 12:50 am, 0% cancelled 85%
  3. UA 279 12:50 am, 0% cancelled 71%
  4. UA 2000 5:05 am, 0% cancelled 91%
  5. UA 2091 6:05 am, 0% cancelled 92%
  6. UA 1568 8:15 am, 0% cancelled 78%
  7. UA 1921 10:05 am, 0% cancelled 62%
  8. UA 1954 10:05 am, 0% cancelled 58%
  9. UA 2317 12:00 pm, 2% cancelled 41%
  10. UA 2250 1:54 pm, 0% cancelled 38%
  11. UA 737 2:06 pm, 4% cancelled 46%
  12. UA 1777 2:29 pm, 0% cancelled 44%
  13. UA 1835 3:10 pm, 0% cancelled 19%
  14. UA 2480 3:10 pm, 2% cancelled 38%
  15. UA 1482 4:21 pm, 0% cancelled 77%
  16. UA 2077 4:21 pm, 0% cancelled 60%
  17. UA 2839 4:30 pm, 0% cancelled 43%
  18. UA 1375 6:34 pm, 0% cancelled 58%
  19. UA 1763 6:34 pm, 0% cancelled 43%
  20. UA 1958 6:38 pm, 0% cancelled 76%
  21. UA 2278 10:38 pm, 1% cancelled 77%
  22. UA 368 11:30 pm, 1% cancelled 87%
  1. AA 2614 6:00 am, 4% cancelled 85%
  2. AA 359 8:00 am, 0% cancelled 77%
  3. AA 3250 8:29 am, 0% cancelled 52%
  4. AA 2543 10:17 am, 5% cancelled 69%
  5. AA 2154 10:58 am, 0% cancelled 35%
  6. AA 2550 2:36 pm, 3% cancelled 35%
  7. AA 3038 2:48 pm, 0% cancelled 41%
  8. AA 2537 4:20 pm, 2% cancelled 65%
  9. AA 2358 5:07 pm, 4% cancelled 44%
  10. AA 2113 10:53 pm, 0% cancelled 93%
  11. AA 2554 11:07 pm, 2% cancelled 69%

What time should I fly? The 5 am departures.

93% landed on time; at 2 pm, 52%. Tuesday was the best day, Monday the worst.

Flight records,

DepartsLanded on time
12 am83%
5 am93%
6 am90%
7 am91%
8 am81%
10 am70%
11 am60%
12 pm55%
1 pm59%
2 pm52%
3 pm60%
4 pm73%
5 pm64%
6 pm73%
10 pm82%
11 pm78%

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.