What are the best ways to travel from Buenos Aires to Iguazu Falls?

The best ways to travel from Buenos Aires to Iguazu Falls are by taking a domestic flight, a long-distance bus, or driving. Domestic flights are the quickest option, taking around 1.5 hours. Long-distance buses are a more affordable choice but take around 18-20 hours. Driving allows for flexibility but is a longer journey of approximately 16-18 hours.