I'm not actually sure what the solution you're proposing is?
Even if you completely eliminated air travel (with no replacement - which is not realistic), you'd just reduce emissions by a mere 2%. Not a trivial number given the scale, but it's far from a "solution to our climate problem". (For comparison, the larger transportation sector including cars is is 16% of emissions. Cars alone are 12%.) [1]
It also turns out to be a very hard problem to solve. We don't have the tech to build an electric airliner yet, and given how hard it's been just to get a single high-speed rail line from SF to LA I'm not betting trains are going to be in a place to practically replace aviation in the US anytime in the next few decades.
[1]: https://ourworldindata.org/ghg-emissions-by-sector