Fill up empty seats by selling affordable return trips to unknown/secret destinations. Pick the destinations among those that have low occupancy close to departure time.

Meals included in the ticket fare are by default vegan (should be cheaper for SAS) and if meat dish is desired then it is a special order at an additional cost.

"Coffee deal" - Sell well designed coffee cups with free coffee for a year. Less waste and collectible item for pax!

Change plastic luggage-trays at fast-track for sustainable (but durable) trays of reused plastic or other cyclic material

Show country of manufacture and carbon footprint for all products in the EuroBonus Shop

Mount small blades on the side of the wheels to make them spin by themselves before landing to reduce tyre wear upon contact with tarmac.