Make a “code-share” cooperation with train providers, to allow for booking a ticket from A to B with combined train-plane modality and same benefits as connecting flight

Give/sell digital bag tags to frequent flyers

Encourage food suppliers and distributors to use more sustainable and healthy packaging in the food that gets served.

Keep your good clients - minimum 10 years as gold member gives you gold for life. Not necessarily 10 years in a row. Now 18 years with 1 missing in the middle = no go

Switching to edible cutlery on SAS reduces waste and offers a unique, eco-friendly experience, enhancing meals while benefiting the environment.

Find ways to allow tax-free purchases to be done in departing airport and to be picked up at the airport were I land. It could save a lot of weigh/fuel.