In small airports, like Vigra, where there only 1 or 2 airplanes stand, have roofs like carports to prevent snow on plane. This will reduce amount of deicing fluid needed.

Almost all passengers have their own phones/pads these days. Keep them connected with *good* wifi and IFE wont be needed, massive weight savings.

In a week/ some days before a flight, do sell “stand by tickets”, to a cost of approx. Euro 50 in Europa, Euro 200 intercontinental, , to increase the cabin factor.

Offer obsolete products to travelers

Taxiing from and to gates from runways should be more smooth and with less fuel - using for example AI

Collecting data on past meal choices and preferences in combination with more sustainable meal offerings (plant/local) in a smart and sustainable packaging.