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Flight records through . Security counts through .

Which IAD to ORD flight is punctual? United 1778, 6:10 am.

96% on time across 24 flights in the last 3 months, never cancelled.

Find your flightIAD security
DepartsFlightOn time
6:10 amUA 177896%
6:15 amUA 155595%
10:31 amUA 125292%
8:15 amUA 177589%
6:10 amUA 207085%
1:15 pmUA 233168%
10:27 pmUA 42167%
10:20 pmUA 173863%
8 of 12 regular flights, ranked by arrivals on time, June to August 2026.

When do the flights leave? 12 regular flights, 6:10 am to 10:27 pm.

UA 1738 was cancelled most often, 4% of the time.

Flight records,

  1. UA 1778 6:10 am, 0% cancelled 96%
  2. UA 2070 6:10 am, 0% cancelled 85%
  3. UA 1555 6:15 am, 0% cancelled 95%
  4. UA 1775 8:15 am, 1% cancelled 89%
  5. UA 1252 10:31 am, 1% cancelled 92%
  6. UA 2331 1:15 pm, 1% cancelled 68%
  7. UA 1393 3:39 pm, 2% cancelled 60%
  8. UA 2649 3:39 pm, 0% cancelled 62%
  9. UA 1580 3:40 pm, 0% cancelled 52%
  10. UA 2497 5:42 pm, 1% cancelled 32%
  11. UA 1738 10:20 pm, 4% cancelled 63%
  12. UA 421 10:27 pm, 0% cancelled 67%

What time should I fly? The 6 am departures.

90% landed on time; at 6 pm, 40%. Tuesday was the best day, Sunday the worst.

Flight records,

DepartsLanded on time
6 am90%
8 am84%
10 am90%
12 pm81%
1 pm79%
3 pm64%
5 pm46%
6 pm40%
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.