SEATTLE, Feb. 28, 2011 /PRNewswire/ — Boeing (NYSE: BA) has delivered the 300th Next Generation 737-800 to Europe’s largest low-fare carrier, Ryanair. The airline will take delivery of a total of 37 of these aircraft during 2011 and is the world’s largest operator of the 737-800. Ryanair took delivery of its first 737-800, which seats 189 passengers, from Boeing in 1999.