The most common way to get to Parnaíba is through the Parnaíba Airport (SBPB), which receives regional flights from some Brazilian cities.
It is also possible to arrive by road from Teresina, the capital of the state of Piauí, which is some 340 km away and has an international airport.
Another option is to take a bus from nearby cities like Fortaleza or São Luís.
From the center of Parnaíba, you can access the main places of interest in the city and in the surroundings by taxi or public transport.
See more about the history of Parnaiba