[vojnovski]

The taxes here amount to 8,33% of the total ticket price.

The rest are actual charges that airports/government services levy for work done, as well as the famed fuel surcharge (usually recently noted as international/domestic surcharge) that airlines use as an wildcard addendum to the base fare of the ticket.

[rayiner]

If you exclude the airport fees and whatnot, you can’t claim that flights are heavily subsidized. The airport fees pay for all the capital infrastructure airlines use. (Trains also use capital infrastructure paid for by governments.)