Airbus A319
A slightly smaller version of Airbus’ A320 single-aisle jetliner, In addition to the standard 124-seat configuration with a range of up to 3,740 nautical miles, Airbus offers an option with a seating capacity of up to 156 passengers – a version that is being ordered by an increasing number of low-cost airlines. The A319 has the same optimised cabin cross-section as the other A320 Family members.
http://www.airbus.com/aircraftfamilies/passengeraircraft/a320family/a319/
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