4 aircraft and 7 cabin layouts, from the A320 to the A330-300. Pick one for its seat map, the best seats and the seats to avoid.
There are seat maps for 4 AirAsia aircraft here: the Airbus A320, the Airbus A320neo, the Airbus A321neo and the Airbus A330-300.
The Airbus A330-300, with 367 seats: 367 Economy in its main layout.
The Airbus A321neo, with Rows 2 to 7: 30"; rows 19 and 20: 35" of seat pitch in Economy and seats 18" wide.
