Slovenian flag-carrier Adria Airways is to take a pair of Airbus A319s next year, confirming its plan to switch to the smaller type.
The carrier, which sold an A320 in September and removed a Boeing 737-500 from service this month, says it will take another A320 out of its operation in 2010.
This twin-jet will be replaced by two A319s, while a single A320 will remain in the fleet.
Adria stated earlier this year that it intended to replace the A320 fleet by 2013.
Alongside the three Airbuses, Adria will operate 11 Bombardier CRJs - comprising a CRJ1000, four CRJ900s and six CRJ200s - by next summer.
Adria's modernisation will coincide with the airline's becoming a full member of Star Alliance, following the airline group's abolition, in January 2010, of its regional member scheme.
"Becoming a full member of Star Alliance is testament to the successful development of our airline," says Adria chief Tadej Tufek.