The best price found from United States to Paraguay is on July 10th, 2015, travelling with Aerolineas Argentinas. See more options, compare prices and book: search flights.
Paraguay's Silvio Pettirossi International Airport is in Luque, a satellite town of Asunción. The airport in Ciudad del Este connects Asunción and major Brazilian destinations.
There is a US$41 airport tax on all departing flights, payable at the desk adjacent to the entrance to the departure lounge. You will receive a sticker on your ticket in return for your payment.