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Typical history

Washington Dulles International Airport TSA wait times

IAD · KIAD · Dulles, Virginia

Security wait

A live wait is shown in this space when the stored feed is under 15 minutes old.

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The current hour is filled from the observed-hour table in this browser.

Observed security history for Washington Dulles International Airport (IAD) is listed by hour. It is not a live reading. The current hour is chosen in the browser from that table.

Typical wait by hour

On Sundays, the quietest observed standard-lane hours are 12am (sample-weighted median 5 minutes) and 1am (sample-weighted median 5 minutes). The busiest observed hours are 2am (sample-weighted 75th percentile 5 minutes) and 3am (sample-weighted 75th percentile 5 minutes). Hours with no readings are left out, not treated as zero.

Standard lane only. Average and 75th percentile are sample-weighted from observed history. A gap means that hour had no readings.

PreCheck

This airport's historical feed has no PreCheck lane readings.

CLEAR

CLEAR is not shown. We are not using a CLEAR source.

Departure delays

Historical on-time performance. Not a live delay.

84%

On-time departures, September 2025 through August 2026. A departure is on time when it left less than 15 minutes late.

Flights out of Washington Dulles International Airport left on time 84% of the time from September 2025 through August 2026. The largest share of delay minutes was late-arriving aircraft (33%). That is a share of delay minutes, not a share of flights. The average delay among departures that were 15 minutes or more late was 87 minutes. 1% of scheduled flights were cancelled.

The highest on-time month was April 2026 (89%). The lowest was July 2026 (75%).

Share of delay minutes by cause. Not a percent of flights.
CauseDelay minutesShare of delay minutes
late-arriving aircraft282,85233%
the airline264,49231%
the national airspace system248,17829%
weather69,3278%
security4080%

Customs and passport control

International arrivals. Not TSA security.

The current hour is filled from the customs table in this browser. It is not a TSA security wait.

Sunday
HourAveragePublished maximumPassengers
12am6 min18 min2,091
1am8 min21 min1,937
2am5 min16 min1,884
3am10 min26 min1,433
4am9 min34 min3,086
5am9 min36 min2,337
6am17 min52 min3,595
7am7 min26 min784
8am12 min42 min5,613
9am13 min48 min3,514
10am18 min58 min3,976
11am6 min21 min3,903
12pm15 min32 min1,185
1pm13 min42 min13,272
2pm14 min55 min26,755
3pm12 min50 min27,058
4pm7 min33 min13,126
5pm6 min22 min6,481
6pm9 min32 min4,432
7pm9 min42 min16,295
8pm8 min33 min15,310
9pm3 min14 min2,677
10pm6 min13 min597
11pm29 min56 min474
Monday
HourAveragePublished maximumPassengers
12am11 min28 min1,798
1am3 min11 min1,058
2am3 min11 min2,102
3am8 min20 min1,090
4am7 min41 min3,652
5am14 min51 min4,579
6am23 min61 min3,200
7am7 min22 min644
8am12 min36 min3,113
9am12 min43 min3,281
10am13 min51 min5,299
11am12 min43 min3,496
12pm14 min46 min1,743
1pm11 min48 min10,255
2pm12 min56 min21,286
3pm12 min61 min28,901
4pm12 min50 min14,098
5pm7 min33 min7,335
6pm13 min34 min3,881
7pm8 min43 min16,990
8pm8 min38 min13,770
9pm5 min16 min3,574
10pm11 min32 min1,121
11pm13 min25 min730
Tuesday
HourAveragePublished maximumPassengers
12am5 min13 min2,090
1am5 min16 min1,388
2am2 min9 min1,659
3am9 min26 min1,559
4am8 min25 min1,935
5am11 min43 min4,101
6am6 min25 min3,219
8am15 min50 min4,906
9am14 min49 min3,644
10am8 min32 min3,569
11am6 min27 min3,704
12pm11 min33 min943
1pm8 min36 min9,272
2pm10 min53 min19,360
3pm11 min54 min24,182
4pm7 min42 min11,192
5pm12 min41 min4,434
6pm16 min60 min8,639
7pm10 min48 min15,198
8pm6 min27 min7,855
9pm5 min12 min1,917
10pm14 min29 min1,138
11pm12 min25 min824
Wednesday
HourAveragePublished maximumPassengers
12am12 min33 min510
1am7 min19 min2,004
2am4 min12 min995
3am11 min25 min1,297
4am10 min49 min2,843
5am12 min62 min4,364
6am6 min18 min1,467
7am2 min10 min219
8am11 min33 min3,708
9am11 min46 min3,095
10am16 min50 min4,119
11am11 min32 min3,188
12pm15 min29 min1,183
1pm12 min53 min9,254
2pm11 min57 min16,099
3pm18 min70 min21,692
4pm12 min49 min9,019
5pm4 min16 min2,680
6pm18 min47 min3,563
7pm12 min54 min14,511
8pm10 min44 min9,007
9pm7 min27 min3,192
10pm8 min18 min869
11pm13 min25 min273
Thursday
HourAveragePublished maximumPassengers
12am9 min20 min1,133
1am12 min27 min1,553
2am10 min26 min1,292
3am16 min36 min2,195
4am11 min27 min1,198
5am12 min44 min3,706
6am19 min54 min2,976
7am5 min18 min1,008
8am16 min63 min4,292
9am23 min73 min3,806
10am20 min57 min3,503
11am16 min43 min2,360
12pm15 min32 min720
1pm14 min47 min8,734
2pm13 min51 min15,034
3pm14 min56 min21,077
4pm11 min44 min8,113
5pm8 min35 min5,040
6pm11 min40 min5,341
7pm11 min45 min12,102
8pm10 min36 min8,709
9pm5 min18 min2,381
10pm22 min36 min292
11pm12 min30 min734
Friday
HourAveragePublished maximumPassengers
12am12 min28 min1,210
1am11 min29 min1,991
2am9 min23 min1,071
3am14 min37 min1,775
4am13 min44 min3,231
5am15 min52 min1,418
6am4 min15 min1,794
8am18 min43 min3,533
9am18 min60 min4,968
10am24 min67 min3,551
11am24 min62 min3,595
12pm20 min44 min1,889
1pm16 min50 min10,223
2pm16 min76 min19,995
3pm17 min68 min26,109
4pm13 min55 min12,007
5pm11 min41 min5,420
6pm16 min44 min6,167
7pm11 min52 min13,531
8pm11 min45 min13,521
9pm6 min24 min3,365
10pm8 min25 min1,398
11pm17 min35 min853
Saturday
HourAveragePublished maximumPassengers
12am9 min21 min1,009
1am8 min24 min1,540
2am6 min15 min1,150
3am9 min35 min1,654
4am18 min79 min4,124
5am30 min94 min6,912
6am28 min71 min3,578
7am42 min66 min216
8am22 min68 min5,678
9am17 min62 min4,325
10am15 min46 min3,802
11am8 min28 min3,700
12pm21 min34 min363
1pm13 min50 min12,162
2pm16 min71 min23,136
3pm14 min62 min28,093
4pm12 min56 min14,069
5pm9 min27 min3,512
6pm9 min32 min5,900
7pm11 min48 min20,638
8pm8 min34 min13,498
9pm11 min29 min4,086
10pm10 min27 min953
11pm20 min32 min323

When to be at the airport

TSA's published guidance is to arrive at the airport 2 hours before a domestic departure and 3 hours before an international departure. That is guidance, not a measured security wait.

Your flight

Enter a departure time to calculate when to be at the airport.

This subtracts TSA's published arrival guidance from the time you enter. It is not a drive time, and it is not a predicted security wait.

Nearby airports

Distances are straight-line miles.

Airport details
Runways
4
Longest runway
01C/19C, 11,500 ft
Longest runway width
150 ft
Longest runway surface
CONC
Longest runway lighting
HIGH
Elevation
312.3 ft
Control tower
Yes
CY2024 enplanements
13,003,234
Facility use
Public
Ownership
Public
Part 139 certificate code
I E
Fuel
100LL,A
Airframe repair
MAJOR
Powerplant repair
MAJOR
Last inspection
2025/11/17

FAA facility record date 2026/10/01. Runways: BTS NTAD Runways. Facility facts: BTS NTAD Aviation Facilities. Enplanements: FAA CY2024 commercial service.

Questions

What is the TSA wait at IAD right now?

Observed security history for Washington Dulles International Airport (IAD) is listed by hour. It is not a live reading. The current hour is chosen in the browser from that table.

Does TSACheck have a live security wait for IAD?

A live figure is shown only when the stored airport feed is fresh. Washington Dulles International Airport (IAD) also has observed history. A stored value that is too old is not shown as live.

How often do flights leave IAD on time?

Flights out of Washington Dulles International Airport left on time 84% of the time from September 2025 through August 2026. The largest share of delay minutes was late-arriving aircraft (33%). That is a share of delay minutes, not a share of flights. The average delay among departures that were 15 minutes or more late was 87 minutes. 1% of scheduled flights were cancelled.

What is the customs wait at IAD?

Customs and passport-control history is in its own section. It is not a TSA security wait. The current hour is chosen from that table in the browser.

How early should I get to IAD?

TSA's published guidance is to arrive at the airport 2 hours before a domestic departure and 3 hours before an international departure. That is guidance, not a measured security wait.

Which airports are near IAD?

The nearest airports in this list are Ronald Reagan Washington National Airport (DCA), 23 straight-line miles; Baltimore/Washington International Thurgood Marshall Airport (BWI), 45 straight-line miles; Hagerstown Regional Richard A Henson Field (HGR), 55 straight-line miles; Charlottesville Albemarle Airport (CHO), 77 straight-line miles; Shenandoah Valley Regional Airport (SHD), 91 straight-line miles.