Recycling the deiceing fluid.

Reusable coffee cups for take away coffee and in-flight.

Collaborating with local governments to create urban air mobility solutions, such as electric air taxis for short-haul trips, can reduce the reliance on traditional trans

Award additional EuroBonus bonus and/or level points when renting an electric vehicle through a car rental partner such as Hertz, Avis or Sixt.

Using hydrogen tanks in the rear of the plane, for example. This could work on shorter routes such as domestic flights or intra-Europe.

Offer multi-flight passes with prebooking conditions to better predict capacity