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Flight records through . Security counts through .

Which IAH to BWI flight is punctual? United 604, 7:40 am.

93% on time across 72 flights in the last 3 months, never cancelled.

Find your flightIAH security
DepartsFlightOn time
7:40 amUA 60493%
12:16 pmUA 172078%
6:32 pmUA 179556%
4:21 pmF9 306840%
4 of 4 regular flights, ranked by arrivals on time, June to August 2026.

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

United landed on time 81% of the time, Spirit 78%.

Flight records,

  • United

    81%

    on time

    0.9% cancelled

  • Spirit

    78%

    on time

    2.0% cancelled

  • Frontier

    48%

    on time

    7.8% cancelled

When do the flights leave? 4 regular flights, 7:40 am to 6:32 pm.

F9 3068 was cancelled most often, 12% of the time.

Flight records,

  1. UA 604 7:40 am, 0% cancelled 93%
  2. UA 1720 12:16 pm, 0% cancelled 78%
  3. UA 1795 6:32 pm, 0% cancelled 56%
  1. F9 3068 4:21 pm, 12% cancelled 40%

What time should I fly? The 7 am departures.

89% landed on time; at 4 pm, 36%. Wednesday was the best day, Sunday the worst.

Flight records,

DepartsLanded on time
5 am73%
6 am82%
7 am89%
11 am84%
12 pm86%
4 pm36%
6 pm68%
7 pm72%

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.