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Flight records through . Security counts through .

Which ATL to IAH flight is punctual? United 532, 7:05 am.

91% on time across 92 flights in the last 3 months, never cancelled.

Find your flightATL security
DepartsFlightOn time
7:05 amUA 53291%
10:06 amDL 168288%
11:37 amUA 42586%
12:27 pmDL 157281%
7:30 amDL 158580%
8:45 amF9 239976%
4:03 pmUA 398776%
6:07 amF9 140376%
8 of 17 regular flights, ranked by arrivals on time, June to August 2026.

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

United landed on time 84% of the time, Delta 74%.

Flight records,

  • United

    84%

    on time

    0.7% cancelled

  • Delta

    74%

    on time

    2.0% cancelled

  • Frontier

    68%

    on time

    1.6% cancelled

When do the flights leave? 17 regular flights, 6:07 am to 10:44 pm.

DL 1585 was cancelled most often, 7% of the time.

Flight records,

  1. UA 532 7:05 am, 0% cancelled 91%
  2. UA 425 11:37 am, 0% cancelled 86%
  3. UA 3992 3:57 pm, 0% cancelled 64%
  4. UA 3987 4:03 pm, 0% cancelled 76%
  5. UA 2376 6:57 pm, 0% cancelled 60%
  6. UA 2474 6:57 pm, 0% cancelled 35%
  1. DL 1585 7:30 am, 7% cancelled 80%
  2. DL 1682 10:06 am, 0% cancelled 88%
  3. DL 1572 12:27 pm, 0% cancelled 81%
  4. DL 2890 2:32 pm, 0% cancelled 66%
  5. DL 1223 4:26 pm, 0% cancelled 57%
  6. DL 1131 6:39 pm, 0% cancelled 55%
  7. DL 1284 8:10 pm, 1% cancelled 58%
  8. DL 1601 10:44 pm, 2% cancelled 68%
  1. F9 1403 6:07 am, 1% cancelled 76%
  2. F9 2399 8:45 am, 1% cancelled 76%
  3. F9 4075 9:25 pm, 6% cancelled 46%

What time should I fly? The 11 am departures.

88% landed on time; at 9 pm, 60%. Wednesday was the best day, Sunday the worst.

Flight records,

DepartsLanded on time
6 am80%
7 am82%
8 am84%
9 am78%
10 am82%
11 am88%
12 pm83%
1 pm84%
2 pm70%
3 pm75%
4 pm65%
5 pm68%
6 pm61%
7 pm82%
8 pm62%
9 pm60%
10 pm73%

When is ATL security busiest? 6 to 8 am, then 2 pm.

Calmest around 11 am. Atlanta 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

Monday, 7 am

7,630

people screened, all terminals.