Introduction Many travelers booking Aer Lingus flights ask the same question: Do Aer Lingus have premium seats? The answer is yes — but the upgrade process, costs, and benefits are far more nuanced than most blogs explain. Aer Lingus offers multiple ways to enhance your travel experience, including business class upgrades , Aer Lingus bidding for upgrade , paid seat selection , and Avios-based upgrades . However, eligibility rules, aircraft types, route differences, and even