Dynamic seating - people with checked in baggage should be placed towards the rear of the plane as they are more likely to have to wait anyway on arrival at destination.

Weigh all passengers anonymously to optimize fuel load for best performance.

Instead of opt-out for food on the plane plane that is included in ticket, make it opt-in.

Possibility to add transportation ticket to airport when buying a ticket from the Scandinavia's big cities. For example airport express train or flybus.

Finger food that's easy and clean to eat reduces the need for cutlery and packaging. That's less weight and packaging and opens up for fun, hearty snacks.

Option to make a plant a tree donation. By having a partnership with a existing tree planting project.