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Flight records through . Security counts through .

Which ONT to ORD flight is punctual? United 2171, 6:10 am.

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

Find your flightONT security

  • UA 2171

    85%

    on time

    6:10 am

    4% cancelled

  • UA 1121

    81%

    on time

    7:00 am

    0% cancelled

  • UA 2826

    79%

    on time

    6:05 am

    0% cancelled

3 regular flights, June to August 2026. Few flights on this route, so these shares move a lot from month to month.

When do the flights leave? 3 regular flights, 6:05 am to 7 am.

UA 2171 was cancelled most often, 4% of the time.

Flight records,

  1. UA 2826 6:05 am, 0% cancelled 79%
  2. UA 2171 6:10 am, 4% cancelled 85%
  3. UA 1121 7:00 am, 0% cancelled 81%

What time should I fly? The 6 am departures.

83% landed on time; at 11 pm, 77%. Monday was the best day, Sunday the worst.

Flight records,

DepartsLanded on time
6 am83%
7 am77%
11 pm77%

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

Calmest around 5 pm. Ontario 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, 5 am

1,420

people screened, all terminals.