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Flight records through . Security counts through .

Which IAD to IAH flight is punctual? United 1935, 6:30 am.

100% on time across 47 flights in the last 3 months, never cancelled.

Find your flightIAD security
DepartsFlightOn time
6:30 amUA 1935100%
10:20 pmUA 205092%
8:40 amUA 152486%
10:29 pmUA 146381%
12:50 pmUA 153579%
6:30 amUA 190779%
10:20 pmUA 198679%
2:53 pmUA 285772%
8 of 9 regular flights, ranked by arrivals on time, June to August 2026.

When do the flights leave? 9 regular flights, 6:30 am to 10:29 pm.

UA 2217 was cancelled most often, 1% of the time.

Flight records,

  1. UA 1907 6:30 am, 0% cancelled 79%
  2. UA 1935 6:30 am, 0% cancelled 100%
  3. UA 1524 8:40 am, 0% cancelled 86%
  4. UA 1535 12:50 pm, 0% cancelled 79%
  5. UA 2857 2:53 pm, 0% cancelled 72%
  6. UA 2217 5:59 pm, 1% cancelled 62%
  7. UA 1986 10:20 pm, 0% cancelled 79%
  8. UA 2050 10:20 pm, 0% cancelled 92%
  9. UA 1463 10:29 pm, 0% cancelled 81%

What time should I fly? The 6 am departures.

91% landed on time; at 2 pm, 70%. Tuesday was the best day, Saturday the worst.

Flight records,

DepartsLanded on time
6 am91%
8 am89%
10 am84%
12 pm86%
2 pm70%
5 pm72%
10 pm85%

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.