"Air Srpska" is a phrase commonly associated with the national airline of the Republika Srpska entity in Bosnia and Herzegovina. When seeking synonyms for this phrase, several can be considered. One alternative is "Srpska Airline", which maintains the essential elements while reversing the word order. Another possibility is "Airline of Srpska", which emphasizes the affiliation with the region. Additionally, "Srpska Airways" could be used, providing a similar meaning with a slight variation in terminology. Overall, these synonym options offer flexibility in phrasing while conveying the same notion of an airline belonging to the Republika Srpska entity.