The best solution to flying and long distance travel is to reduce it as much as possible. This means no more travelling for hedonistic (touristic) purposes.
I.e. measures like massive taxation (also for private jets of course).
So no tourist travel for the poor or middle class, just the elite rich? And no tourist income for the poor and middle class? This is a policy only the top .1% will enjoy.
Degrowth, and “everyone should just do without X” is such an easy solution. Too bad for you we don’t live in a political system where you guys can pass such unpopular policy and force the majority (who wants improving living standards) to just ‘own nothing and be happy,’ trading all the things they like for promises that the climate will be fixed.
And other countries will also choose to keep their privileges and climate change will not be reduced anyway.
Electrified high speed rail solves this, with flying reserved for transoceanic needs. Private jets should not exist outside of scientific, medical, or other non luxury/personal use cases. Travel and tourism will always be with us, and should be imho. Carbon taxes, laws, whatever is needed to accomplish it.
I think that's a bad frame of mind in general. One of the primary ways industry tries to prevent regulation is by putting the burden on the individual. People think the only way we can have a healthy environment is by sacrificing things for the average person. And one of the worst things environmentalists can do is play along with that. In the US there's a push to ban plastic straws, which is annoying to the average consumer, while basically every item you can purchase comes wrapped in tons of plastic packaging. Industry LOVES things like this because it does little to actually reduce plastic consumption, and pits the average person against the environmental movement.
As another example, the amount of greenhouse gas emissions from airplanes is several times less than the amount of methane that leaks out of natural gas pipelines every year (here I'm weighting emissions by their global warming impact). The overwhelming majority of those leaks can be prevented with minimal effort, but industry hasn't been incentivized to do so. Maybe before we start banning tourism, we have some inspectors checking pipelines for pinhole leaks?