The additional aircraft will see easyJet operate its largest-ever Scottish flying programme this summer, offering 2.2 million seats from Glasgow.
Flights to Enfidha took off on Thursday (2 May), with easyJet set to operate the route twice-a-week on Thurdays and Sundays throughout the year.
A new Larnaca route, meanwhile, will get under way on Saturday (4 May) operating on Tuesdays and Saturdays throughout the summer.
Ali Gayward, easyJet’s UK country manager, said the decision to add a sixth aircraft to the airline’s Glasgow fleet was testament to its commitment to the Scottish market.