Qatar Airways serves the following cities. This does not include codeshares.

Africa
East Africa
Kenya
Nairobi (Jomo Kenyatta International Airport)
Seychelles
Mahe (Seychelles International Airport)
Tanzania
Dar es Salaam (Mwalimu J.K. Nyerere International Airport)

North Africa
Algeria
Algiers (Houari Boumedienne Airport)
Egypt
Alexandria (El Nhouza Airport)
Cairo (Cairo International Airport)
Luxor (Luxor International Airport)
Libya
Tripoli (Tripoli International Airport)
Morocco
Casablanca (Mohammed V International Airport)
Sudan
Khartoum (Khartoum International Airport)
Tunisia
Tunis (Tunis-Carthage International Airport)

Southern Africa
South Africa
Cape Town (Cape Town International Airport)
Johannesburg (OR Tambo International Airport)

West Africa
Nigeria
Lagos (Murtala Mohammed International Airport)

Asia
East Asia
People's Republic of China
Beijing (Beijing Capital International Airport)
Hong Kong (Hong Kong International Airport)
Shanghai (Shanghai Pudong International Airport)
Japan
Osaka (Kansai International Airport)
South Korea
Seoul (Incheon International Airport)

South Asia
Bangladesh
Dhaka (Zia International Airport)
India
Ahmedabad (Sardar Vallabhbhai Patel International Airport) [begins April 2007]
Chennai (Chennai International Airport) [begins 24 March 2007]
Delhi (Indira Gandhi International Airport)
Hyderabad (Begumpet Airport)
Kochi (Cochin International Airport)
Mumbai (Chatrapati Shivaji International Airport)
Nagpur (Dr. Babasaheb Ambedkar International Airport) [begins summer 2007]
Trivandrum (Trivandrum International Airport)
Maldives
Malé (Male International Airport)
Nepal
Kathmandu (Tribhuvan International Airport)
Pakistan
Islamabad (Islamabad International Airport)
Karachi (Jinnah International Airport)
Lahore (Allama Iqbal International Airport)
Peshawar (Peshawar International Airport)
Sri Lanka
Colombo (Bandaranaike International Airport)

Southeast Asia
Indonesia
Denpasar (Ngurah Rai Airport) [begins 25 March 2007]
Jakarta (Soekarno-Hatta International Airport)
Malaysia
Kuala Lumpur (Kuala Lumpur International Airport)
Myanmar
Yangon (Yangon International Airport)
Philippines
Cebu (Mactan-Cebu International Airport)
Manila (Ninoy Aquino International Airport)
Singapore
Singapore (Singapore Changi Airport)
Thailand
Bangkok (Suvarnabhumi Airport)
Vietnam
Ho Chi Minh City (Tan Son Nhat International Airport) [begins 25 March 2007]

Southwest Asia
Bahrain
Manama (Bahrain International Airport)
Iran
Mashad (Mashhad International Airport)
Tehran (Imam Khomeini International Airport)
Jordan
Amman (Queen Alia International Airport)
Kuwait
Kuwait City (Kuwait International Airport)
Lebanon
Beirut (Rafic Hariri International Airport)
Oman
Muscat (Seeb International Airport)
Qatar
Doha (Doha International Airport) Hub
Saudi Arabia
Dammam/Dhahran (King Fahd International Airport)
Jeddah (King Abdulaziz International Airport)
Riyadh (King Khalid International Airport)
Syria
Damascus (Damascus International Airport)
United Arab Emirates
Abu Dhabi (Abu Dhabi International Airport)
Dubai (Dubai International Airport)
Yemen
Sana'a (Sana'a International Airport)

Europe
Austria
Vienna (Vienna International Airport)
France
Paris (Charles de Gaulle International Airport)
Germany
Berlin (Tegel International Airport)
Frankfurt (Frankfurt International Airport)
Munich (Munich International Airport)
Greece
Athens (Athens International Airport, "Eleftherios Venizelos")
Italy
Milan (Malpensa International Airport)
Rome (Leonardo Da Vinci International Airport)
Russia
Moscow (Domodedovo International Airport)
Spain
Madrid (Madrid Barajas International Airport)
Netherlands
Amsterdam (Amsterdam Schiphol Airport) Cargo only
Switzerland
Geneva (Geneva Cointrin International Airport) [begins June 28, 2007]
Zürich (Zürich International Airport)
Sweden
Stockholm (Stockholm-Arlanda Airport) [begins November 30, 2007]
Turkey
Istanbul (Atatürk International Airport)
United Kingdom
London
(London Gatwick Airport)
(London Heathrow Airport)
Manchester (Manchester Airport)

North America
United States
Newark (Newark Liberty International Airport) [begins June 28, 2007]
Washington, D.C. (Washington Dulles International Airport) [begins June 24, 2007] codeshares.