Airports AirportPace Search

Flight records through . Security counts through .

Which IAD to DEN flight is punctual? United 2031, 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 2031100%
6:30 amUA 203592%
8:15 amUA 79292%
8:15 amUA 188290%
8:15 amUA 276888%
12:48 pmUA 158787%
10:13 amUA 186586%
10:23 pmUA 49580%
8 of 13 regular flights, ranked by arrivals on time, June to August 2026.

Which airline is most reliable? United, ahead of Southwest.

United landed on time 83% of the time, Southwest 78%.

Flight records,

  • United

    83%

    on time

    0.5% cancelled

  • Southwest

    78%

    on time

    1.0% cancelled

When do the flights leave? 13 regular flights, 6:30 am to 10:23 pm.

UA 1882 was cancelled most often, 5% of the time.

Flight records,

  1. UA 2031 6:30 am, 0% cancelled 100%
  2. UA 2035 6:30 am, 0% cancelled 92%
  3. UA 1882 8:15 am, 5% cancelled 90%
  4. UA 2768 8:15 am, 0% cancelled 88%
  5. UA 792 8:15 am, 2% cancelled 92%
  6. UA 1865 10:13 am, 0% cancelled 86%
  7. UA 1587 12:48 pm, 0% cancelled 87%
  8. UA 1126 2:35 pm, 0% cancelled 72%
  9. UA 395 3:56 pm, 0% cancelled 69%
  10. UA 1490 4:15 pm, 0% cancelled 43%
  11. UA 599 5:41 pm, 2% cancelled 52%
  12. UA 2667 7:20 pm, 0% cancelled 63%
  13. UA 495 10:23 pm, 0% cancelled 80%

What time should I fly? The 6 am departures.

94% landed on time; at 6 pm, 65%. Tuesday was the best day, Thursday the worst.

Flight records,

DepartsLanded on time
5 am90%
6 am94%
7 am93%
8 am86%
9 am92%
10 am89%
12 pm91%
1 pm86%
2 pm81%
3 pm78%
4 pm74%
5 pm68%
6 pm65%
7 pm67%
8 pm84%
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.