Terminals · IAD
What terminal is United at IAD?
United departs from Terminals C and D at Washington Dulles International Airport (IAD). We verified this against the airport's own sources on June 27, 2026 — airlines do move terminals, so we date every check.
Terminal CTerminal D
IAD TSA wait times todayLive security waits by checkpoint, so you know when to leave for Terminals C and D.What terminal is United at IAD?
United departs from Terminals C and D at Washington Dulles International Airport (IAD). United's IAD hub: mainline and most United Express flights depart from Concourses C and D (south midfield terminal). AeroTrain serves Concourse C; Concourse D has no AeroTrain station (reach via walkway from C or a mobile lounge). A few United Express flights use Concourse A ground-level gates and the Main Terminal 'Z' gates. Verified June 27, 2026.
Where does United check in at IAD?
Main Terminal ticketing/Departures upper level, Zone #4. Bag drop usually closes 45 minutes before departure, so build that into your morning.
Did United move terminals at IAD?
Not that we've found. We confirmed United departs from Terminals C and D at IAD as of June 27, 2026. Airlines do shuffle terminals, so we re-check and date every change.
Does United use a different terminal for international flights at IAD?
All C/D gates handle both domestic and international departures; United international arrivals are processed via the sterile corridor to customs.
Not sure which building that is? See all IAD terminals with the airport map and how to get between them. Then let your Leave-By Time count backward from your flight — today's IAD security wait, your drive, and the walk to your gate — so you leave with room to breathe.