majority people
==majority of people
convincing arguments can be made that taking flights is more economical for all
traveler s not only for wealthy for some reasons.
(I think this sentence sounds confusing..)
convincing arguments can be made that taking flights is not only for the wealthy, but also for all the travellers. (may be better)
it is
not uncommon (double negative sounds a little bit strange for me..)
it is not hard/ it's relatively easy..
which can even save more money
than by other transports(I think there is an error in this sentence however i couldn't figure out a correct expression:)
Here are my advices, hope they are helpful.
Overall, it is a good essay.
GLGL