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Flight records through . Security counts through .

Which IAH to SFO flight is punctual? United 487, 5:22 am.

99% on time across 71 flights in the last 3 months, never cancelled.

Find your flightIAH security
DepartsFlightOn time
5:22 amUA 48799%
7:20 amUA 176885%
4:25 pmUA 38278%
7:36 pmUA 169176%
9:59 pmUA 160971%
8:20 amUA 274471%
3:30 pmUA 58969%
12:58 pmUA 275662%
8 of 13 regular flights, ranked by arrivals on time, June to August 2026.

When do the flights leave? 13 regular flights, 5:22 am to 9:59 pm.

UA 2358 was cancelled most often, 1% of the time.

Flight records,

  1. UA 487 5:22 am, 0% cancelled 99%
  2. UA 1768 7:20 am, 0% cancelled 85%
  3. UA 2744 8:20 am, 0% cancelled 71%
  4. UA 2358 9:35 am, 1% cancelled 56%
  5. UA 2611 12:58 pm, 0% cancelled 49%
  6. UA 2756 12:58 pm, 0% cancelled 62%
  7. UA 589 3:30 pm, 0% cancelled 69%
  8. UA 382 4:25 pm, 0% cancelled 78%
  9. UA 1341 6:05 pm, 0% cancelled 46%
  10. UA 1976 7:35 pm, 0% cancelled 39%
  11. UA 2751 7:35 pm, 0% cancelled 33%
  12. UA 1691 7:36 pm, 0% cancelled 76%
  13. UA 1609 9:59 pm, 0% cancelled 71%

What time should I fly? The 5 am departures.

97% landed on time; at 7 pm, 52%. Tuesday was the best day, Monday the worst.

Flight records,

DepartsLanded on time
5 am97%
7 am88%
8 am72%
9 am72%
10 am71%
12 pm78%
2 pm84%
3 pm77%
4 pm78%
5 pm87%
6 pm64%
7 pm52%
8 pm65%
9 pm81%

When is IAH security busiest? 6 am, then 8 am.

Calmest around 9 am. Houston IAH 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

Friday, 6 am

4,540

people screened, all terminals.