No that's not the same, because air travel is a different industry than agriculture for instance. And it would be a lot more efficient for mitigating carbon emissions that everybody on earth reduce their meat consumption, rather than banning air travel, that would definitely have little impact overall, and impair a lot our ability to meet, explore, make business. Just take the very scientific that do research on climate change: they do take planes to meet... And that's probably very important they continue so.

Yes, it would be more effective to reduce meat consumption globally. But we need to do both because time is running out. See the Drawdown project for an exhaustive list of policies.

I'd argue that people who actively work on climate change mitigation should keep flying if it really helps them be more effective. One of my friends does that: she helps urban planners save millions of tons of CO2, while emitting a few tons by herself. Overall, it's a good investment.