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IAD Washington Delays & Airport Status

Washington Dulles International

IAD delays today: Washington Dulles International has an on-time departure rate of about 83%. The FAA airport status for IAD typically shows an average delay of 74 minutes when departures are delayed. The most common reason for departure delays here is the airline (crew, maintenance, or boarding). Roughly 1.5% of flights are cancelled. The typical taxi-out time from gate to takeoff is about 19 minutes. The current TSA wait is about about 7 min. The fastest time through security is 4 AM (about 5 min). The busiest period is 5 PM (24-30 minutes).

Source: BTS, FAA. Updated April 2026.

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Delay Stats

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83% on timeAvg delay 74 min

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Security Lines

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~7 minBest: 4 AM (about 5 min)

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Plan & Explore

Departures here are on time most of the time. About 83% of flights leave within 15 minutes of schedule.

The most common reason for departure delays here is the airline (crew, maintenance, or boarding).

Planes often wait a while before takeoff. The typical wait from gate to takeoff is about 19 minutes.

This airport rainy (~10 precip days/month).

Among major airlines, F9 has the most complaints (23.2/100k) while WN has the fewest (1.5/100k).

Accurate?

IAD departure performance by month

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Airlines at IAD

On-time departure rate from DOT data

Endeavor Air87%
Republic Airways86%
United Airlines84%
Delta Air Lines83%
PSA Airlines82%

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