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Flight records through . Security counts through .

Which STL to BOS flight is punctual? American 3814, 9:39 am.

85% on time across 47 flights in the last 3 months, 4.3% cancelled.

Find your flightSTL security
DepartsFlightOn time
9:39 amAA 381485%
9:55 amWN 389175%
1:30 pmWN 380855%
7:55 pmWN 472454%
7:51 pmAA 467852%
2:30 pmWN 389232%
6 of 6 regular flights, ranked by arrivals on time, June to August 2026.

Which airline is most reliable? American, ahead of Southwest.

American landed on time 70% of the time, Southwest 62%.

Flight records,

  • American

    70%

    on time

    3.2% cancelled

  • Southwest

    62%

    on time

    0.7% cancelled

When do the flights leave? 6 regular flights, 9:39 am to 7:55 pm.

AA 4678 was cancelled most often, 8% of the time.

Flight records,

  1. AA 3814 9:39 am, 4% cancelled 85%
  2. AA 4678 7:51 pm, 8% cancelled 52%
  1. WN 3891 9:55 am, 0% cancelled 75%
  2. WN 3808 1:30 pm, 0% cancelled 55%
  3. WN 3892 2:30 pm, 0% cancelled 32%
  4. WN 4724 7:55 pm, 0% cancelled 54%

What time should I fly? The 7 am departures.

90% landed on time; at 7 pm, 46%. Friday was the best day, Sunday the worst.

Flight records,

DepartsLanded on time
7 am90%
8 am84%
9 am80%
10 am80%
11 am71%
12 pm63%
1 pm66%
2 pm56%
3 pm51%
5 pm66%
6 pm67%
7 pm46%
8 pm48%

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.