I've not had to pay it yet but was always prepared to. We have reservations for March so I've put the question to AA. I'll let you know if and when they respond. They acknowledged receipt of the question and claim they will answer. The ticket sure doesn't say just 69.+ of government taxes.

My last flight to Belize was on Continental ff points. I did have to pay Continental around $100 to cover off fees and taxes, etc. I did not know if I would have to pay a departure fee in BZ and so had my money tucked away. As it turned out, I didn't have to pay.

Does the Departure Fee say Departure Fee on your airline docs?
Here are the items listed on my tickets:
Airfare: 634.00 USD
U.S. Customs User Fee: 5.00
U.S. Immigration User Fee: 7.00
U.S. APHIS User Fee: 5.00
U.S. Federal Transportation Tax: 29.00
U.S. Security Service Fee: 7.50
Belize Airport Development Fee: 15.00
Bellize Conservation Tax: 3.80
Belize Passenger Service Charge: 15.00
U.S. Passenger Facility Charge: 4.50
Belize Security Tax: 2.50
Per Person Total: 728.30
USD