In the app, the PAX can choose what they don't want/need from what is included in their ticket. No checked-in luggage get EB points. No meal, no headphones, no kit +++.

Free reebooking to earlier flight when avilable. Result in filling up seats, and making it more likely to fill up seats on later flights

Create an ability to share a seat in your car with other passengers on the flight. It's better than everyone riding their car.

By reducing the time planes spend with engines idling on the ground, we can decrease fuel consumption and emissions.

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.

Window shades down when parked at warm days. Keep the fuselage cooler. Experienced it domestic USA and it works