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Flight records through . Security counts through .

Which IAH to SLC flight is punctual? United 6202, 12:30 pm.

95% on time across 21 flights in the last 3 months, never cancelled.

Find your flightIAH security
DepartsFlightOn time
12:30 pmUA 620295%
7:35 amDL 158390%
2:25 pmUA 400686%
2:25 pmUA 620785%
9:45 amUA 75685%
9:46 amUA 224285%
2:28 pmDL 153280%
7:01 pmDL 129979%
8 of 9 regular flights, ranked by arrivals on time, June to August 2026.

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

United landed on time 84% of the time, Delta 83%.

Flight records,

  • United

    84%

    on time

    0.4% cancelled

  • Delta

    83%

    on time

    0.4% cancelled

When do the flights leave? 9 regular flights, 7:35 am to 8:25 pm.

DL 1583 was cancelled most often, 1% of the time.

Flight records,

  1. UA 756 9:45 am, 0% cancelled 85%
  2. UA 2242 9:46 am, 0% cancelled 85%
  3. UA 6202 12:30 pm, 0% cancelled 95%
  4. UA 4006 2:25 pm, 0% cancelled 86%
  5. UA 6207 2:25 pm, 0% cancelled 85%
  6. UA 2157 8:25 pm, 0% cancelled 67%
  1. DL 1583 7:35 am, 1% cancelled 90%
  2. DL 1532 2:28 pm, 0% cancelled 80%
  3. DL 1299 7:01 pm, 0% cancelled 79%

What time should I fly? The 8 am departures.

97% landed on time; at 8 pm, 76%. Saturday was the best day, Monday the worst.

Flight records,

DepartsLanded on time
7 am86%
8 am97%
9 am86%
11 am86%
12 pm86%
2 pm82%
4 pm84%
6 pm85%
7 pm77%
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.