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Flight records through . Security counts through .

Which IAH to TUL flight is punctual? United 6171, 4:30 pm.

100% on time across 23 flights in the last 3 months, never cancelled.

Find your flightIAH security
DepartsFlightOn time
4:30 pmUA 6171100%
7:26 amUA 532594%
12:10 pmUA 539685%
9:42 pmUA 617985%
2:35 pmUA 627082%
2:35 pmUA 423981%
11:55 amUA 541380%
8:14 pmUA 626979%
8 of 10 regular flights, ranked by arrivals on time, June to August 2026.

When do the flights leave? 10 regular flights, 7:20 am to 9:42 pm.

UA 4239 was cancelled most often, 3% of the time.

Flight records,

  1. UA 5371 7:20 am, 0% cancelled 76%
  2. UA 5325 7:26 am, 0% cancelled 94%
  3. UA 5413 11:55 am, 0% cancelled 80%
  4. UA 5396 12:10 pm, 0% cancelled 85%
  5. UA 4239 2:35 pm, 3% cancelled 81%
  6. UA 6270 2:35 pm, 0% cancelled 82%
  7. UA 6171 4:30 pm, 0% cancelled 100%
  8. UA 3991 6:20 pm, 0% cancelled 78%
  9. UA 6269 8:14 pm, 0% cancelled 79%
  10. UA 6179 9:42 pm, 0% cancelled 85%

What time should I fly? The 2 pm departures.

88% landed on time; at 8 pm, 76%. Tuesday was the best day, Sunday the worst.

Flight records,

DepartsLanded on time
7 am85%
9 am83%
11 am84%
12 pm87%
2 pm88%
4 pm77%
6 pm77%
7 pm80%
8 pm76%
9 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.