An airliner is a type of transportation service for transporting passengers and air cargo. Such aircraft are most often operated by airlines. The largest airliners are called "wide-body aircraft". These aircraft are frequently called twin-aisle aircraft because they generally have two separate aisles running from the front to the back of the passenger cabin. These aircraft are usually used for long-haul flights between airline hubs and major cities with many passengers. A smaller, more common class of airliners is the "narrow-body aircraft" or single aisle aircraft. These smaller airliners are generally used for short to medium-distance flights with fewer passengers than their wide-body counterparts.
A Boeing 737-300 narrow-body airliner
- Airbus A380-841, Qantas (Airbus Industrie) AN0958825.jpg
An Airbus A380, the world's largest wide-body airliner
- G-CSVS Boeing 757-236 DHL (Tasman Cargo Airlines) (9971633533).jpg
A Boeing 757 cargo airliner
- SSJ100 for Interjet - Interiors (9015054999).jpg
The cabin of a narrow-body airliner, with only 1 aisle
- Boeing 767-360-ER, Ethiopian Airlines AN0715739.jpg
The cabin of a wide-body airliner, with 2 aisles
- "Narrow-Body / Single Aisle Aircraft". GlobalSecurity.org. Retrieved 7 October 2015.