President and chief executive, Darren Huston, said: “The Priceline Group is off to a strong start in 2015 with accelerating growth in room nights and rental car days booked. “Globally, our brands booked over 100 million room nights for the first time during a quarter. “International gross bookings growth accelerated to 29% on a constant currency basis in the first quarter. “Booking.com continues to extend its lead as the world’s largest brand for booking accommodations, with over 635,000 hotels and other accommodations on the platform, up 40% over last year. Get the full story at Travolution and Priceline Read also "Priceline preps OpenTable and B2B hotel IT" at Tnooz