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Flight records through . Security counts through .

Which IAD to CHO flight is punctual? United 4333, 9 am.

90% on time across 82 flights in the last 3 months, 3.7% cancelled.

Find your flightIAD security

  • UA 4333

    90%

    on time

    9:00 am

    4% cancelled

  • UA 4815

    89%

    on time

    12:55 pm

    0% cancelled

  • UA 4265

    81%

    on time

    10:40 pm

    3% cancelled

3 regular flights, June to August 2026.

When do the flights leave? 3 regular flights, 9 am to 10:40 pm.

UA 4333 was cancelled most often, 4% of the time.

Flight records,

  1. UA 4333 9:00 am, 4% cancelled 90%
  2. UA 4815 12:55 pm, 0% cancelled 89%
  3. UA 4265 10:40 pm, 3% cancelled 81%

What time should I fly? The 8 am departures.

87% landed on time; at 6 pm, 64%. Wednesday was the best day, Friday the worst.

Flight records,

DepartsLanded on time
8 am87%
9 am86%
12 pm84%
5 pm84%
6 pm64%
10 pm82%

When is IAD security busiest? 3 to 4 pm daily.

Calmest around 9 am. Washington IAD 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, 4 pm

4,000

people screened, all terminals.