Hawaiian Airlines has officially joined the oneworld alliance as its 16th member and retired its historic ‘HA’ IATA code in favor of Alaska Airlines’ ‘AS’ code, effective April 22, 2026. These moves mark a critical integration milestone following Alaska’s 2024 acquisition, enabling unified operations on a single passenger service system.
The code switch simplifies bookings, IT infrastructure, and connections for passengers and partners, signaling 75% completion of the merger process. Hawaiian flights now appear under AS identifiers, with aligned call signs for radio communications, while aircraft liveries and brand identity remain distinct to preserve regional heritage.
Joining oneworld strengthens the alliance’s Asia-Pacific presence through Hawaiian’s routes to Japan, South Korea, and Australia. Oneworld elite members gain reciprocal perks on Hawaiian flights, including lounge access, mile earning, and redemptions via the shared Atmos Rewards program.
Operational synergies enhance efficiency and global network access to over 1,200 destinations. Remaining steps include harmonizing operating certificates, labor agreements, and full loyalty program unification by 2027, amid volatile market conditions.