Copa Airlines IAD Terminal operates Terminal A in Washington Dulles International Airport (IAD) to offer extensive services to passengers traveling predominantly to Central and South America. Passengers can purchase tickets online, via the Copa app, by phone, or at manned ticket counters of the airline in Terminal A, where agents process bookings and ticket modifications. Check-in on the internet can be done from 24 hours before departure or at airport counters and kiosks, with recommended arrival at least three hours beforehand for international travel. Copa has a one carry-on and one personal item carry-on policy, with restrictions on checked bags varying based on destination and class of service. Special items and extra baggage require advance booking. Passengers with disabilities or with pets may arrange assistance beforehand. Copa has no dedicated lounge at IAD but qualifying passengers can access United Club lounges through Star Alliance.