Alaska Airlines and Hawaiian Airlines completed the transition to a shared passenger service system on April 22, marking a significant integration milestone for the combined carriers under Alaska Air Group (NYSE: ALK).

The unified Sabre passenger service system connects both airlines' digital tools, websites, mobile applications, and loyalty programs. Hawaiian Airlines adopted the same system used by Alaska Airlines, enabling passengers to manage trips across both brands through a single platform.

Passengers can now use a combined Alaska Hawaiian mobile app that offers either Alaska Airlines or Hawaiian Airlines branding themes. The app includes self-service features such as flight changes, Apple Pay integration, and booking capabilities across over 30 airline partners including oneworld alliance members.

All flights now carry the "AS" code assigned by the International Air Transport Association, though Hawaiian Airlines flights will be denoted as "Operated by Alaska as Hawaiian Airlines" while maintaining Hawaiian's brand identity and hospitality.

The airlines have consolidated airport operations in major cities including Las Vegas, Los Angeles, New York-JFK, Phoenix, Portland, Sacramento, San Francisco, San Jose, and Seattle. Hawaiian Airlines adopted Alaska's alphabetical boarding group system and switched to mobile and web-only check-in with self-service bag tag kiosks.

"We're doing something that no other U.S. airline has done before: Operating multiple brands on a single platform," said Alaska Air Group CEO Ben Minicucci.

Hawaiian Airlines passengers flying in Premium Class and Atmos Gold, Platinum, and Titanium members now receive complimentary alcohol on transpacific flights. The integration enables access to the combined Atmos Rewards loyalty program across both carriers' networks.

The system transition represents a key milestone in Alaska Air Group's strategic plan following its acquisition of Hawaiian Airlines.