Go to this link, you will find all details. It depends on the airline, date of travel and time:-
http://www.expedia.com/pub/agent.dll?qscr=fexp&flag=q&city1=DOH&citd1=DX...|%20Flights|%20freesearch|%20poolB|%20other&eapid=21187-1
Go to this link, you will find all details. It depends on the airline, date of travel and time:-
http://www.expedia.com/pub/agent.dll?qscr=fexp&flag=q&city1=DOH&citd1=DX...|%20Flights|%20freesearch|%20poolB|%20other&eapid=21187-1