Choosing between Ryanair and Aegean Airlines depends entirely on whether you prioritize low cost or premium service. Ryanair is Europe's leading ultra-low-cost carrier, offering incredibly cheap "unbundled" fares (often as low as €20) that are ideal for budget travelers who can travel with just a small personal item. However, they charge for every additional service, including carry-on bags, seat selection, and even printing a boarding pass at the airport. Aegean Airlines, Greece's flagship carrier and a member of Star Alliance, provides a "full-service" experience. Even their basic fares often include a carry-on bag, and they are famous for serving complimentary hot meals and beverages on international flights—a rarity in modern European short-haul travel. Aegean consistently ranks higher for seat comfort, cabin cleanliness, and staff professionalism. If you are looking for a "no-frills" hop across the continent, Ryanair is the winner on price; if you want a comfortable, hospitable journey with fewer hidden fees, Aegean is significantly better.