Domestic Travel September 11th Security Fee of $2.50 per U.S. enplanement International Travel (including Puerto Rico and U.S. Virgin Islands) September 11th Security Fee of $2.50 per U.S. enplanement Other government taxes and fees (including U.S. government excise tax) of up to $180 based on destination; total may vary slightly based upon currency exchange rate at time of purchase U.S. government excise tax is a user tax to pay for airport construction and airway safety and operations.