Hawaiian Airlines, which soon will become the only major airline offering complimentary meals in the main cabin, allows customers to upgrade and purchase a premium meal at $10 to $12.

Free meals in coach include a breakfast burrito with mushrooms and blueberry muffin for brunch service, and a three-layer enchilada pie and black forest cake for lunch or dinner. Juices and soft drinks are still complimentary, too.

Passengers on Hawaiian's mainland flights can choose premium meals from a salad or sushi platter, which comes with bottled water and dessert. Hawaiian also has upgraded its drink selection to include half-bottles of Pinot Noir or Chardonnay from the La Crema winery in California's Sonoma County for $14. It also sells Hawaiian Springs water in a sports bottle for $3.50.

Customers seated in first class are offered a tapas menu of five items, in which they can choose three courses. This concept guarantees that every passenger's choice will always be available. Since their introduction in 2009, Hawaiian's premium meals and snacks have grown in popularity, prompting its catering department to increase the number of meals that are provisioned on its flights.

On Hawaiian's new incoming Airbus aircraft, meal choices will be presented in the on-demand in-flight entertainment system, allowing customers to order directly from their seat with the swipe of a credit card.