IAD Washington
Washington Dulles International
Best time through security: 4 AM (about 5 min)
Most reliable airline here: Endeavor Air (87% on time)
Why delays happen: The most common reason for departure delays here is the incoming plane arriving late.
Get a pre-flight briefing for IAD
Delay risk, TSA wait, and weather — emailed before your flight. Free.
Common questions about IAD
Are there delays at IAD right now?
No active delays at IAD right now. Historically, IAD runs on time 82% of the time.
How long is TSA at IAD?
Estimated wait right now: about about 5 min. Fastest time: 4 AM (about 5 min). Busiest: 5 PM (22-28 minutes).
What usually causes delays at IAD?
The most common reason for departure delays here is the incoming plane arriving late. About 1.3% of flights get cancelled.
How long of a connection do I need?
IAD is fairly reliable — 60 minutes is usually fine for domestic, 90 minutes for international.