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Flight records through . Security counts through .

Which STL to ORD flight is punctual? American 4104, 9:08 am.

95% on time across 64 flights in the last 3 months, never cancelled.

Find your flightSTL security
DepartsFlightOn time
9:08 amAA 410495%
8:10 amUA 456795%
6:00 amUA 100892%
8:00 amUA 418389%
6:55 amAA 192688%
6:00 amUA 280587%
10:20 amUA 451782%
11:25 amUA 439582%
8 of 32 regular flights, ranked by arrivals on time, June to August 2026.

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

American landed on time 71% of the time, United 68%.

Flight records,

  • American

    71%

    on time

    3.9% cancelled

  • United

    68%

    on time

    2.8% cancelled

When do the flights leave? 32 regular flights, 6 am to 8:14 pm.

UA 4536 was cancelled most often, 17% of the time.

Flight records,

  1. AA 1926 6:55 am, 3% cancelled 88%
  2. AA 2324 7:03 am, 13% cancelled 67%
  3. AA 4104 9:08 am, 0% cancelled 95%
  4. AA 3568 9:32 am, 0% cancelled 82%
  5. AA 6355 1:25 pm, 4% cancelled 44%
  6. AA 6352 1:42 pm, 6% cancelled 58%
  7. AA 3815 2:32 pm, 2% cancelled 68%
  8. AA 4259 4:54 pm, 11% cancelled 56%
  9. AA 4537 5:03 pm, 9% cancelled 68%
  10. AA 3570 8:07 pm, 11% cancelled 59%
  11. AA 4144 8:14 pm, 9% cancelled 54%
  1. UA 1008 6:00 am, 0% cancelled 92%
  2. UA 2805 6:00 am, 2% cancelled 87%
  3. UA 4423 7:20 am, 0% cancelled 81%
  4. UA 4570 7:25 am, 0% cancelled 76%
  5. UA 4183 8:00 am, 0% cancelled 89%
  6. UA 567 8:00 am, 0% cancelled 75%
  7. UA 4567 8:10 am, 0% cancelled 95%
  8. UA 4601 8:50 am, 0% cancelled 67%
  9. UA 5572 9:20 am, 0% cancelled 77%
  10. UA 4517 10:20 am, 1% cancelled 82%
  11. UA 4395 11:25 am, 4% cancelled 82%
  12. UA 2654 12:59 pm, 0% cancelled 57%
  13. UA 1382 1:13 pm, 3% cancelled 65%
  14. UA 4452 3:22 pm, 6% cancelled 55%
  15. UA 4536 3:22 pm, 17% cancelled 62%
  16. UA 4500 3:32 pm, 0% cancelled 45%
  17. UA 541 5:30 pm, 0% cancelled 38%
  18. UA 1639 5:59 pm, 6% cancelled 58%
  19. UA 4616 6:54 pm, 5% cancelled 52%
  20. UA 4165 7:05 pm, 9% cancelled 54%
  21. UA 4411 7:05 pm, 12% cancelled 46%

What time should I fly? The 5 am departures.

91% landed on time; at 8 pm, 51%. Tuesday was the best day, Sunday the worst.

Flight records,

DepartsLanded on time
5 am91%
6 am84%
7 am78%
8 am76%
9 am76%
10 am71%
11 am68%
12 pm64%
1 pm63%
2 pm66%
3 pm61%
4 pm58%
5 pm66%
6 pm54%
7 pm54%
8 pm51%

When is STL security busiest? 5 am, then 7 am.

Calmest around 5 pm. St. Louis 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, 7 am

1,760

people screened, all terminals.