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Flight records through . Security counts through .

Which SLC to COS flight is punctual? Delta 3788, 8:59 pm.

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

Find your flightSLC security

  • DL 3788

    91%

    on time

    8:59 pm

    0% cancelled

  • DL 4449

    85%

    on time

    3:51 pm

    0% cancelled

2 regular flights, June to August 2026.

When do the flights leave? 2 regular flights, 3:51 pm to 8:59 pm.

None was cancelled in the last 3 months.

Flight records,

  1. DL 4449 3:51 pm, 0% cancelled 85%
  2. DL 3788 8:59 pm, 0% cancelled 91%

What time should I fly? The 9 am departures.

94% landed on time; at 3 pm, 90%. Tuesday was the best day, Sunday the worst.

Flight records,

DepartsLanded on time
9 am94%
3 pm90%
8 pm91%

When is SLC security busiest? 6 am, then 9 am.

Calmest around 5 pm. Salt Lake City 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

Thursday, 9 am

2,910

people screened, all terminals.