World's 5 biggest airlines now from Asia, Latin America

Air China is twice the size of either Delta in the U.S. or Germany's Lufthansa. But despite emerging markets' strength and a broad earnings rebound this year, weak economic conditions in Europe and low margins are acting as a drag on profits, the group warned.

"The world is changing in aviation, and it's changing very, very quickly," IATA Chief Executive Giovanni Bisignani told a news conference in Geneva. "Rapidly developing markets are shifting the industry's center of gravity to the East."

Air China has a market capitalization of $20 billion, followed by Singapore airlines with $14 billion and Hong Kong-based Cathay Pacific with $12 billion.

China Southern has a market cap of $11 billion, as does LATAM, the Latin American airline recently created from the merger of Chile's LAN and TAM of Brazil. U.S. carrier Delta and Germany's Lufthansa follow with market capitalizations of $10 billion each.

IATA said strong growth in developing countries and a rebound in North America are largely responsible for the industry's recovery this year.