Basic physics

You seem to be gravely mistaken about how physics work and shouldnt act smug about stuff you dont understand. Flying a machine that weighs around 1t per passenger at 10km in the air is not more efficient than rolling on the ground, just because there are more people on the machine. Means of transportation have immense differences in efficiency, thats why ships are even more efficient than cars or trains.

The website you linked doesnt give real world values, which becomes obvious by this passage:

It’s the emission factors companies use to quantify and report their emissions.

Measuring avition emissions has never been easy and lobbyists have taken great advantage of that. Those are the absolute minimum values that could be proven beyond doubt, many years ago when studies around aviation emissions were just in the beginning. Actual emissions are way higher, which should have been obvious to you too if you had read the article instead of parotting capitist propaganda.

Please read up on the matter or at least stop suggesting that flying could be more efficient than driving, because flying is by faaaaaar the worst method of transportation you could choose.