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Flight records through . Security counts through .

Which IAH to SEA flight is punctual? United 2228, 12:04 pm.

100% on time across 21 flights in the last 3 months, never cancelled.

Find your flightIAH security
DepartsFlightOn time
12:04 pmUA 2228100%
8:00 amUA 265496%
6:02 amAS 45392%
8:00 amAS 24183%
2:38 pmAS 43982%
6:45 pmUA 234181%
8:00 amUA 135179%
7:55 pmUA 245679%
8 of 12 regular flights, ranked by arrivals on time, June to August 2026.

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

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

Flight records,

  • Alaska

    82%

    on time

    0.5% cancelled

  • United

    80%

    on time

    0.1% cancelled

When do the flights leave? 12 regular flights, 6:02 am to 7:55 pm.

AS 453 was cancelled most often, 1% of the time.

Flight records,

  1. AS 453 6:02 am, 1% cancelled 92%
  2. AS 241 8:00 am, 0% cancelled 83%
  3. AS 439 2:38 pm, 0% cancelled 82%
  1. UA 1351 8:00 am, 0% cancelled 79%
  2. UA 2654 8:00 am, 0% cancelled 96%
  3. UA 2205 10:00 am, 0% cancelled 73%
  4. UA 2228 12:04 pm, 0% cancelled 100%
  5. UA 2638 4:25 pm, 0% cancelled 66%
  6. UA 1795 6:05 pm, 0% cancelled 62%
  7. UA 692 6:30 pm, 0% cancelled 72%
  8. UA 2341 6:45 pm, 0% cancelled 81%
  9. UA 2456 7:55 pm, 0% cancelled 79%

What time should I fly? The 6 am departures.

92% landed on time; at 6 pm, 70%. Thursday was the best day, Saturday the worst.

Flight records,

DepartsLanded on time
6 am92%
7 am82%
8 am87%
9 am84%
10 am79%
2 pm86%
4 pm81%
6 pm70%
7 pm73%
8 pm76%

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.