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Flight records through . Security counts through .

Which SUN to ORD flight is punctual? United 4788, 8:15 am.

74% on time across 68 flights in the last 3 months, 4.4% cancelled.

Find your flightSUN security

  • UA 4788

    74%

    on time

    8:15 am

    4% cancelled

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

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

United landed on time 63% of the time, American 46%.

Flight records,

  • United

    63%

    on time

    1.6% cancelled

  • American

    46%

    on time

    10.0% cancelled

When do the flights leave? One regular flight, at 8:15 am.

UA 4788 was cancelled most often, 4% of the time.

Flight records,

  1. UA 4788 8:15 am, 4% cancelled 74%

What time should I fly? The 8 am departures.

72% landed on time; at 1 pm, 44%. Wednesday was the best day, Friday the worst.

Flight records,

DepartsLanded on time
8 am72%
12 pm56%
1 pm44%

When is SUN security busiest? 6 am, every morning.

Calmest around 5 pm. Sun Valley Hailey Ketchum 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, 6 am

110

people screened, all terminals.