Originally Posted by
pandaperth
On the RJ web site it states there is an airport tax of $20
http://rj.com/en/destinations_airports.html
So it looks the tax is genuine and not a rip-off
To cross-check I priced up a 1-way KRT-AMM flight on itasoftware, it shows only one tax
Sudan Passenger Service Charge (NY) 35.00SDG
There are a few countries that still collect an exit tax directly off the passenger - it is not included in the taxes you pay when you buy your ticket (Philippines and Bolivia come to mind)
Indonesia as well. Had to pay in cash in local currency when leaving Bali (luckily I knew ahead of time and had the exact amount ready but it seems no one else did because everyone ahead of me took 5-7 minutes each but the same agent only needed 20 seconds for me).