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

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

Put some pressure on Swedavia to create more EV charging in the parking and use "Green Electricity" This is more of the total experience of travelling.

Flying less emits less CO2. Thereby minimizing the impact on the planet.

Offer rebate to business class passengers for not using the full luggage quota.

When going from A to D some times you need to transit in B and even C. Price match the most eco-friendly with the cheapest alternative in points.