Things are about to change for Alaska and Hawaiian Airlines customers. On Wednesday, Alaska Airlines acquired Hawaiian Airlines in a historic merger. The acquisition is the largest merger between U.S.

The merger between Alaska Airlines and Hawaiian Airlines is official, making it possible to share loyalty benefits between both carriers.

Joe Sprague, formerly Alaska Airlines’ current regional president of Hawaii/Pacific, now takes over as Hawaiian Airlines CEO to lead the interim leadership team overseeing Hawaiian’s operations while Alaska pursues a single operating certificate from the Federal Aviation Administration.