A passport is required to enter Paraguay. U.S. citizens arriving by air may obtain a "visa en arribo" (visa on arrival) at Silvio Pettirossi International Airport in Asuncion. This is a multiple entry visa with a validity of up to ten years. The current fee is $160, payable in U.S. dollars. Credit cards are not accepted. Border agents generally only accept crisp, new bills that are free of any ink marks, blots, or tears. If paying with $100 denomination bills, series CB and D are not accepted. If not arriving at Silvio Pettirossi International Airport, prior to traveling to Paraguay, you must apply for a visa in person or by secure messenger at the Paraguayan Embassy in Washington, D.C., or the nearest Paraguayan consulate, and pay the fee. Minor children may require a special notarized authorization from Paraguayan authorities to enter and exit the country, when not accompanied by both legal parents/guardians. For additional information regarding your situation and how to obtain this special permit, please visit the Embassy’s website.
To leave Paraguay by air, you must pay an airport departure tax. Some airlines include the Paraguayan airport departure tax in the cost of the airline ticket. It is recommended that you check with the airline in order to determine whether or not the departure tax has been included.