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 airline’s chief executive, Ben Minicucci, said in an interview that closing its acquisition of Hawaiian Airlines would allow it to expand, including on international routes.

From mileage plans to new routes and airplanes, here are the details of what the merger will look like over the next year.

Alaska Airlines said on Wednesday it had completed its $1.9 billion acquisition of Hawaiian Airlines after reaching an agreement with the U.S. Department of Transportation.

Nonetheless, the merger will shift the balance of the American commercial aviation industry, bringing together two of the ten largest airlines to create what now stands as the fifth largest in the United States, according to Forbes. Let's take a deeper look at what the largest impacts of this merger will be.

Alaska Airlines closed its $1 billion purchase of Hawaiian Airlines on Wednesday, a day after the federal government removed the last major regulatory obstacle to the deal.