The US city comes top ahead of London, which last held the top spot in 2014, and Paris completing the top three. Egencia, Expedia’s corporate travel brand, said Paris has solidified its status as a European business hub, with air travel to the French capital increasing by more than 20% from January to December. Overall, Asia dominates the rankings with four cities in the top 10 this year, and seven within the top 20, including the re-emergence of South Korean capital Seoul, which had fallen out of the rankings last year. Get the full story at Travolution