Airports AirportPace Search

Flight records through . Security counts through .

Which IAD to ROC flight is punctual? United 4485, 12:50 pm.

87% on time across 31 flights in the last 3 months, 6.5% cancelled.

Find your flightIAD security
DepartsFlightOn time
12:50 pmUA 448587%
8:25 amUA 487386%
8:25 amUA 461580%
10:37 pmUA 484174%
12:50 pmUA 486471%
10:20 pmUA 403571%
10:37 pmUA 439470%
5:30 pmUA 487160%
8 of 8 regular flights, ranked by arrivals on time, June to August 2026.

When do the flights leave? 8 regular flights, 8:25 am to 10:37 pm.

UA 4871 was cancelled most often, 15% of the time.

Flight records,

  1. UA 4615 8:25 am, 0% cancelled 80%
  2. UA 4873 8:25 am, 5% cancelled 86%
  3. UA 4485 12:50 pm, 6% cancelled 87%
  4. UA 4864 12:50 pm, 0% cancelled 71%
  5. UA 4871 5:30 pm, 15% cancelled 60%
  6. UA 4035 10:20 pm, 0% cancelled 71%
  7. UA 4394 10:37 pm, 2% cancelled 70%
  8. UA 4841 10:37 pm, 4% cancelled 74%

What time should I fly? The 8 am departures.

83% landed on time; at 5 pm, 71%. Wednesday was the best day, Sunday the worst.

Flight records,

DepartsLanded on time
8 am83%
12 pm79%
5 pm71%
10 pm76%

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.