Stop serving food/snacks/drinks on the shortest flights and instead implement grab and go lounges. Saves weight and can give customers greater choice.

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

Collaborate with public transport companies at popular destinations to reduce car usage.

Implement the potential to offset carbon footprint by CDR technologies like enhanced rock weathering;

Always aim for fully booked flights; if not, find the best solution to optimize occupancy and efficiency.

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.