The fees etc. now are probably more than that. Here is the breakdown for our flight for 2 to MBJ via Southwest:
Cost and Payment Summary
Base Fare $ 692.00
U.S. Transportation Tax $ 73.20
US customs User Fee $ 11.30
Animal and plant health inspection fee $ 7.92
US Immigration and Naturalization user fee $ 14.00
U.S. 9/11 Security Fee $ 22.40
Airport Improvement Fee $ 10.00
Passenger Facility Charge $ 6.00
Airline Passenger Levy $ 40.00
Passenger Aviation Service Charge $ 16.00
Travel Tax $ 70.00
Passenger Service and Security Fee $ 45.08
Tourism Enhancement Fee $ 40.00
U.S. Passenger Facility Chg $ 27.00
Total Air Cost $ 1074.90