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Flight records through . Security counts through .

Which BUF to DEN flight is punctual? United 1727, 9 am.

87% on time across 92 flights in the last 3 months, never cancelled.

Find your flightBUF security

  • UA 1727

    87%

    on time

    9:00 am

    0% cancelled

  • WN 3413

    18%

    on time

    4:40 pm

    0% cancelled

2 regular flights, June to August 2026.

Which airline is most reliable? United, by a distance.

United landed on time 84% of the time, Southwest 63%.

Flight records,

  • United

    84%

    on time

    0.0% cancelled

  • Southwest

    63%

    on time

    0.4% cancelled

When do the flights leave? 2 regular flights, 9 am to 4:40 pm.

None was cancelled in the last 3 months.

Flight records,

  1. UA 1727 9:00 am, 0% cancelled 87%
  1. WN 3413 4:40 pm, 0% cancelled 18%

What time should I fly? The 9 am departures.

85% landed on time; at 4 pm, 32%. Thursday was the best day, Saturday the worst.

Flight records,

DepartsLanded on time
8 am83%
9 am85%
10 am79%
4 pm32%

When is BUF security busiest? 5 am, every morning.

Calmest around 12 pm. Buffalo 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, 5 am

1,130

people screened, all terminals.