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Flight records through . Security counts through .

Which ATL to IAD flight is punctual? United 641, 5:30 am.

96% on time across 71 flights in the last 3 months, 1.4% cancelled.

Find your flightATL security
DepartsFlightOn time
5:30 amUA 64196%
7:35 amDL 132490%
9:50 amDL 144485%
9:25 amUA 63285%
7:38 pmUA 213181%
12:17 pmDL 213579%
8:23 amF9 108275%
2:59 pmDL 169571%
8 of 15 regular flights, ranked by arrivals on time, June to August 2026.

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

United landed on time 82% of the time, Delta 76%.

Flight records,

  • United

    82%

    on time

    0.8% cancelled

  • Delta

    76%

    on time

    2.7% cancelled

  • Frontier

    62%

    on time

    2.1% cancelled

When do the flights leave? 15 regular flights, 5:30 am to 10:53 pm.

F9 3692 was cancelled most often, 5% of the time.

Flight records,

  1. UA 641 5:30 am, 1% cancelled 96%
  2. UA 632 9:25 am, 5% cancelled 85%
  3. UA 1831 2:41 pm, 2% cancelled 68%
  4. UA 2634 7:32 pm, 0% cancelled 57%
  5. UA 2131 7:38 pm, 0% cancelled 81%
  1. DL 1324 7:35 am, 3% cancelled 90%
  2. DL 1444 9:50 am, 1% cancelled 85%
  3. DL 2135 12:17 pm, 0% cancelled 79%
  4. DL 1695 2:59 pm, 1% cancelled 71%
  5. DL 2902 4:35 pm, 3% cancelled 56%
  6. DL 1309 7:15 pm, 3% cancelled 56%
  7. DL 2549 10:53 pm, 3% cancelled 62%
  1. F9 1082 8:23 am, 4% cancelled 75%
  2. F9 4410 3:13 pm, 3% cancelled 60%
  3. F9 3692 9:03 pm, 5% cancelled 33%

What time should I fly? The 5 am departures.

94% landed on time; at 9 pm, 59%. Thursday was the best day, Sunday the worst.

Flight records,

DepartsLanded on time
5 am94%
7 am83%
8 am86%
9 am82%
10 am79%
12 pm84%
1 pm73%
2 pm74%
3 pm66%
4 pm64%
5 pm70%
6 pm78%
7 pm73%
9 pm59%
10 pm62%
11 pm90%

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.