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Flight records through . Security counts through .

Which SDF to DEN flight is punctual? United 1506, 8 am.

96% on time across 71 flights in the last 3 months, never cancelled.

Find your flightSDF security
DepartsFlightOn time
8:00 amUA 150696%
1:10 pmWN 129779%
8:00 amUA 154776%
3:25 pmUA 151070%
4 of 4 regular flights, ranked by arrivals on time, June to August 2026.

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

United landed on time 84% of the time, Southwest 80%.

Flight records,

  • United

    84%

    on time

    1.0% cancelled

  • Southwest

    80%

    on time

    1.1% cancelled

When do the flights leave? 4 regular flights, 8 am to 3:25 pm.

UA 1510 was cancelled most often, 1% of the time.

Flight records,

  1. UA 1506 8:00 am, 0% cancelled 96%
  2. UA 1547 8:00 am, 0% cancelled 76%
  3. UA 1510 3:25 pm, 1% cancelled 70%
  1. WN 1297 1:10 pm, 0% cancelled 79%

What time should I fly? The 6 am departures.

92% landed on time; at 3 pm, 78%. Saturday was the best day, Sunday the worst.

Flight records,

DepartsLanded on time
6 am92%
8 am90%
9 am91%
1 pm78%
3 pm78%

When is SDF security busiest? 5 to 6 every morning.

Calmest around 5 pm. Louisville 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, 6 am

870

people screened, all terminals.