Airports AirportPace Search

Flight records through . Security counts through .

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

Calmest around 9 am. Choose any hour on the board.

On time by hourCheckpoint peaks
4a6a8a10a12p2p4p6p8p10p
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MonTueWedThuFriSatSun
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Thursday, 4 pm

4,000

people screened, 8-week average.

Which checkpoint is busiest? East Mezzanine and Passenger Screening Area: PreCheck.

East Mezzanine and Passenger Screening Area: PreCheck peak at 4 pm.

Security counts,

  • East Mezzanine

    4 pm

    1,220 screened

  • Passenger Screening Area: PreCheck

    4 pm

    920 screened

  • West Mezzanine

    7 am

    720 screened

  • FIS

    3 pm

    690 screened

Which departures leave on time? Leave in the morning.

6 am: 90% left on time. 8 pm: 67%.

Flight records,

DepartsLeft on time
6 am90%
7 am87%
8 am89%
9 am89%
10 am85%
11 am82%
12 pm83%
1 pm85%
2 pm80%
3 pm78%
4 pm75%
5 pm76%
6 pm71%
7 pm71%
8 pm67%
10 pm78%

Which airline runs on time here? United and Delta lead.

United flies 86% of IAD departures and landed on time 80% of the time.

Flight records,

  1. United 78,378 flights, 1.6% cancelled 80%
  2. Delta 5,699 flights, 2.6% cancelled 76%

Not ranked, under ten flights a day: American 78% of 2,472, Southwest 75% of 872, Alaska 74% of 1,196, Allegiant 71% of 531, Frontier 66% of 1,682.

Where do IAD flights land late? Chicago, Atlanta, San Francisco.

Lowest on-time rates of the 8 busiest.

Flight records,

ToFlightsOn time
ATL Atlanta4,09976%
DEN Denver3,38782%
CLT Charlotte2,76278%
SFO San Francisco2,68877%
LAX Los Angeles2,46083%
DTW Detroit2,19977%
MCO Orlando2,18079%
ORD Chicago2,10674%

Every route from IAD

92 destinations with flights in the last twelve months.