Aer Lingus operates its own loyalty program called AerClub, which was launched in 2016 to replace the old Gold Circle Club. While Aer Lingus is owned by IAG (International Airlines Group), it is notably not a member of the oneworld alliance, though it maintains close "sister" ties with British Airways and Iberia. In 2026, AerClub's primary strength is its use of Avios as its reward currency, meaning members can seamlessly "Combine My Avios" between AerClub, British Airways Executive Club, and Qatar Airways Privilege Club. AerClub features four tiers: Green, Silver, Platinum, and Concierge. Although not in an alliance, Aer Lingus has extensive codeshare and frequent flyer partnerships with airlines like United Airlines, American Airlines, and JetBlue. This allows travelers to earn and redeem miles across a vast global network while enjoying "hybrid" benefits like lounge access or priority boarding when flying on specific transatlantic partner routes, particularly those between Dublin and major U.S. hubs.