Chilean airline group LAN expects capacity to grow by between 12% and 14% in 2012.
This will be mostly driven by the delivery of 13 passenger aircraft, says the Oneworld carrier, which is in the final stages of concluding a merger with Brazil's TAM.
LAN added two Airbus A319 aircraft to its fleet in the first quarter and had a fleet of 151 aircraft as of 31 March.
The carrier expects to receive 10 additional A320 family aircraft during the remainder of 2012 for both domestic and regional routes, and nine Boeing 767-300s and two 787-8s for international flights.
LAN also plans to sell five Airbus A318s and return two leased Boeing 767-300s during the year, as well as return three 737-700s operated by LAN Colombia.
The carrier will receive two Boeing 777 Freighters in 2012, and expects to grow cargo capacity by between 3% and 5%.