Planes don’t have the equivalent of a catalytic converter so their emissions are much worse and because they come out at altitude it makes them twice as damaging as the equivalent being released at ground level.

Their fuel economy per passenger isn’t great either, you’ll burn less fuel per passenger driving to your destination if it’s a group of four in a V8 SUV or two person in a small car.

You would also not travel thousands of km for a one week vacation if you did it by car instead of a plane, so you would reduce your fuel consumption even more.

The vast majority of air traffic emissions are related to tourists (people like you and me, not people who own a private jet) and cargo transportation. In both cases the air is the worst mean of reaching a destination from an environmental perspective. People need to understand that it’s not sustainable to expect to travel all over the world quickly or to get something delivered from across the world in a few days.