Booked last week for flight to Argentina in May and here's the breakdown of tax,fees and fuel surcharge:
U.S. Federal Transportation Tax: 16.10
U.S. Security Service Fee: 5.00
Fuel Surcharge: 150.60
U.S. Immigration User Fee: 14.00
U.S. APHIS User Fee: 10.00
Canadian Security Charge: 16.00
Canada Airport Improvement Fee: 19.77
Canada Goods and Services Tax: 0.99
Argentina Immigration Tax: 10.00
Argentina Security Tax: 2.50
Argentina Airport Tax: 29.00
U.S. Passenger Facility Charge: 6.00
On top of all that, I'm given to understand that as I am a Canadian, will also have to fork over $70 US to leave the country. I am used to Continental adding in these kinds of exit fees, but apparently for Argentina, they cannot do it.