Doha International Airport is the only airport in Qatar where regular commercial flights are flown. Its runway, at 4800m long, is one of the longest in the world at a civil airport. The current airport is planned to be replaced in 2013 by a new one (located 4 kilometres away from the existing airport).
Airlines flying from Doha Airport include:
Air India Express
Biman Bangladesh Airlines
Iran Aseman Airlines
Middle East Airlines
Pakistan International Airlines
Royal Jordanian Airlines
Shaheen Air International
Sri Lankan Airlines
You cannot take alcohol with you out of the airport.