Ryanair shareholders have rubber-stamped the airline's purchase of 175 aircraft from Boeing. The deal for the 737-800 aircraft was first agreed in March, but has now been approved at Ryanair's EGM in Dublin. It is Boeing's largest European order, with a list price of $16bn. Speaking to reporters, Ryanair CEO Michael O'Leary said the purchase would mean “bigger aircraft and lower costs per seat”. “Today's order is a very much interim order and will hopefully be a forerunning to ordering the MAX later on,” he added. Delivery of the first of the new aircraft will begin next year. O'Leary said 75 of the 737s would replace older aircraft, adding that the carrier’s fleet would grow to 400 by 2019.