Most countries Most countries, including Uruguay have various requirements for entry, they usually include:- a ticket to leave (not a return trip ticket, or even an airline ticket to leave, but some prepaid transportation out of the country). One might infer that the the ticket be for a date within the entry period allow, but I've never seen that written in the regulations. - sufficient funds for your stay - passport, visa and/or other travel document If a passenger arrives in violation of the entry requirements most countries not only fine the airline, they also require the airline to return the passenger to where ever they came from at the expense of the airline. Aside from the travel document issue, ie: Immigration in Uruguay is not going to let you in without a passport or cedula (per Mercosur rules), or a visa if from a country where that is required. It is very unlikely that Immigration will make inquiry about your funds or return ticket. The problem arises when an airline employee decides to be more strict that immigration will be and demand to see a return ticket. Once upon entering Costa Rica a friend that was traveling with me was asked by immigration to see her return ticket. She had one, but it was in my house in Costa Rica. That explanation was acceptable to immigration. When an airline is being difficult, you can of course a buy a very expensive, one-way, 100% refundable ticket and then refund it the next day. Just make sure you read the fine print. Also, the entry period in Uruguay is 90 days, with an extension of 90 days upon asking. Expert Page: Quick Tips for Getting Settled in Uruguay |