Halifax International Airport has more flights to more destinations than any other airport in Atlantic Canada, welcoming more than three million passengers each year. With the best full-service facilities, and the widest range of prices and frequencies, Halifax International Airport is among the busiest in the country. The main terminal building has two principal levels - the ground level for ticketing, arrivals, and retail shopping, and the second level for departures. Halifax International Airport offers a wide variety of services for those travelers arriving in Halifax or for those picking up passengers. The airport is a 24-hour operation, and while airlines determine whether aircraft will fly during inclement weather, the Terminal Building never closes.