Narrow-body aircraft

A narrow-body aircraft (also known as a single aisle aircraft) is an airliner with a fuselage aircraft cabin width typically of 3 to 4 metres (10 to 13 ft), and airline seat arranged 2 to 6 abreast along a single aisle. Narrow-body aircraft with a range not allowing transatlantic or transcontinental flights are commonly known as regional airliners.

In contrast, a wide-body aircraft is a larger airliner and is usually configured with multiple travel classes with a fuselage diameter of 5 to 7 metres (16 to 20 ft) and twin aisles. Passengers are usually seated 7 to 10 abreast. For comparison, typical wide-body aircraft can accommodate between 200 and 600 passengers, while the largest narrow-body aircraft currently in widespread service (the Boeing 757-300) carries a maximum of about 250.

Six-abreast cabin

 * Airbus A320 - currently the world's 2nd best selling jet aircraft, 156 inches (4.0 m) (395 cm) outside width
 * Boeing 707 - The first commercially successful jet airliner, 148 inches (3.8 m) outside diameter
 * Boeing 720 - Also known as the Boeing 707-20, 148 inches (3.8 m) outside diameter
 * Boeing 727 - at one time the most-produced airliner, 148 inches (3.8 m) outside diameter
 * Boeing 737 - the world's best selling jet aircraft of all time, surpassing the 727, 148 inches (3.8 m) outside diameter
 * Boeing 757 - the largest of major narrow bodies, 148 inches (3.8 m) outside diameter [[Image:N647DL-2008-08-15-YVR.jpg|right|thumb|250px|This [[Delta Air Lines]] Boeing 757 is a popular narrow-body short-medium range airliner. It is one of the more modern narrow body designs.]]
 * Douglas DC-8, 373 cm outside width
 * Tupolev Tu-154 - jet aircraft
 * Tupolev Tu-204 - jet aircraft
 * Tupolev Tu-334 - jet aircraft
 * Vickers VC10, 373 cm outside width

Five-abreast cabin

 * BAC One-Eleven
 * BAe 146 - flown as a large regional jet in a 69 seat passenger configuration, 6-abreast in high-density
 * Boeing 717 - the latest iteration of the DC-9, 3.4 metres (130 in) outside diameter
 * Bombardier CSeries, 328 cm inside width
 * Convair 880, 325 cm inside width
 * Convair 990
 * Fokker F28 - jet aircraft 3.3 metres (130 in)
 * Fokker 70 - jet aircraft
 * Fokker 100 - regional jet aircraft 3.3 metres (130 in) outside diameter
 * McDonnell Douglas DC-9 - 3.4 metres (130 in) outside width
 * McDonnell Douglas MD-80/MD-90 - a development of the DC-9, 3.4 metres (130 in) outside diameter
 * Sukhoi Superjet 100 - 323 cm inside width
 * Antonov 148, 158

Four-abreast cabin

 * Aérospatiale-BAC Concorde - Supersonic airliner first flown in 1969.
 * Sud Aviation SE 210 Caravelle - First-generation European jet airliner.