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Flight records through . Security counts through .

Which DEN to GRR flight is punctual? United 2637, 9:58 am.

86% on time across 92 flights in the last 3 months, never cancelled.

Find your flightDEN security
DepartsFlightOn time
9:58 amUA 263786%
3:08 pmF9 124883%
5:55 pmUA 212162%
1:00 pmWN 153958%
4 of 4 regular flights, ranked by arrivals on time, June to August 2026.

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

Frontier landed on time 85% of the time, United 78%.

Flight records,

  • Frontier

    85%

    on time

    0.0% cancelled

  • United

    78%

    on time

    0.3% cancelled

  • Southwest

    69%

    on time

    0.3% cancelled

When do the flights leave? 4 regular flights, 9:58 am to 5:55 pm.

UA 2121 was cancelled most often, 2% of the time.

Flight records,

  1. F9 1248 3:08 pm, 0% cancelled 83%
  1. UA 2637 9:58 am, 0% cancelled 86%
  2. UA 2121 5:55 pm, 2% cancelled 62%
  1. WN 1539 1:00 pm, 0% cancelled 58%

What time should I fly? The 9 am departures.

87% landed on time; at 1 pm, 59%. Friday was the best day, Sunday the worst.

Flight records,

DepartsLanded on time
9 am87%
10 am85%
11 am86%
12 pm68%
1 pm59%
3 pm84%
4 pm82%
5 pm66%
6 pm59%

When is DEN security busiest? 8 to 9 every morning.

Calmest around 5 pm. Denver 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, 9 am

6,760

people screened, all terminals.