The Boeing 757-300 is a narrow-body aircraft and a variant of the 757 Family. The 757-300 is the largest variant in the family and is one of the largest narrow-body airplanes ever built. The 757-300 shares the power and performance that the Boeing 757-200 has however the range is reduced in favour for more seating. However, the aircraft can still fly the trans-Atlantic routes that the 757-200 does. The 757-300 was not initially designed with winglets but they have become an aftermarket add-on enabling improved fuel-efficiency amongst other benefits. The 757-300 is no longer produced and unfortunately did not share the success of the 757-200 as there were very few orders for the variant. The 757-300 typically flies medium to long haul routes with medium to heavy demand.