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Flight records through . Security counts through .

Which IAH to ONT flight is punctual? Frontier 3131, 6:10 am.

87% on time across 92 flights in the last 3 months, 1.1% cancelled.

Find your flightIAH security

  • F9 3131

    87%

    on time

    6:10 am

    1% cancelled

  • UA 1563

    78%

    on time

    8:31 pm

    0% cancelled

2 regular flights, June to August 2026.

Which airline is most reliable? Frontier and United, neck and neck.

Frontier landed on time 82% of the time, United 80%.

Flight records,

  • Frontier

    82%

    on time

    0.5% cancelled

  • United

    80%

    on time

    0.0% cancelled

When do the flights leave? 2 regular flights, 6:10 am to 8:31 pm.

F9 3131 was cancelled most often, 1% of the time.

Flight records,

  1. F9 3131 6:10 am, 1% cancelled 87%
  1. UA 1563 8:31 pm, 0% cancelled 78%

What time should I fly? The 6 am departures.

93% landed on time; at 4 pm, 71%. Tuesday was the best day, Monday the worst.

Flight records,

DepartsLanded on time
6 am93%
4 pm71%
5 pm82%
7 pm74%
8 pm80%

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.