A VietJet Air aircraft, operated by VietJet Aviation Joint Stock Co., sits on the tarmac at Tan Son Nhat International Airport in Ho Chi Minh City, Vietnam, on Monday, Jan. 9, 2017. VietJet, the Vietnam carrier known for its bikini-clad flight attendants, expects profit to surge 30 percent this year on rising passengers as it prepares for its Ho Chi Minh City Stock Exchange listing debut in February. Photographer: Linh Luong Thai/Bloomberg via Getty Images