NEW YORK (Reuters) - Growth in online travel bookings is rapidly shifting overseas, leading to a race to bolster operations in Asia and Latin America, the chief executives of two top online travel companies said on Monday.

Speaking at the Reuters Travel and Leisure Summit, Dara Khosrowshahi of Expedia Inc (EXPE.O) and Jeffery Boyd of Priceline.com (PCLN.O) agreed that overseas growth is fundamental to their business strategies.

Khosrowshahi, the 40-year-old leader of the largest online travel agency, said he expects non-U.S. bookings to account for at least half of Expedia´s business within five years, up from 37 percent currently.

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