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

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

The DOT also required both airlines to guarantee fee-free family seating and preserve service to small, rural communities in both Alaska and Hawaii, among other requirements. “Our top priority is protecting the traveling public’s interest in this ...