T he question of whether the Airbus A350 is bigger than the Airbus A340 might seem simple at first, but “size” in aviation ...

Iberia has unveiled its all-new Airbus A350-900 cabin that features business class with doors. The plane is Airbus' new "Production Standard" jet that can fit up to 10 seats per row in economy.

Airbus is nearing introduction of a new interior configuration standard for the A350 which will permit 10-abreast economy seating and potentially add 30 seats to the aircraft’s accommodation.

ITA Airways has signed a cabin retrofit agreement with Airbus Services to upgrade its fleet of six Airbus A350-900 aircraft with new premium economy class sections.

The A350 has an all-new fuselage that is 25cm (10in) wider than the A330/A340's, and Airbus has completely revised its construction with large-scale use of carbonfibre.

The Boeing 777-9 is larger with more seat capacity than the Airbus A350-1000, but it has less range and costs $76 million more.