Flight test
By March 2015, the two prototype aircraft had accumulated 1,200 hours (of about 2,000 hours necessary for certification), and two more aircraft were expected to fly that year. Flight test maximums had progressed to a weight of , a speed of , and altitude. In 2015, AgustaWestland reported that the AW609 flew from Yeovil, UK, to Milan, Italy, in 2 hours 18 minutes. In September 2015, the first AW609 prototype was reportedly nearing the end of its service life, while a third prototype was finishing construction at the company's Vergiate facility and a fourth prototype was being built in Philadelphia.