Allegiant has bought 18 MD-80s from SAS Group, the companies announced early Monday.
The planes, built between 1985 and 1991, according to SAS
, will be delivered this year and put into service by 2012, Allegiant said in a press release
The aircraft include 13 MD-82s/83s that will operate regularly scheduled service and five MD-87s that will be used for spare parts and engines, Allegiant said.
Allegiant operates a fleet of 46 MD-80s and owns 42 of them.