Treviso Airport is served by one very small terminal, which you can quickly find your way around. Departures are on the 1st floor and arrivals on the ground floor.
From the entrance to the terminal, it's barely 50 metres to the plane. Due to the small size of the terminal, there is a shortage of seating when multiple planes meet.
The only security check takes you to the common transit area, where the gates for non-Schengen flights are separated from the gates for Schengen flights by passport control.
A downloadable map of the terminal is available on the airport website.
Transfer between flights
Treviso is a popular low-cost airport, and many travellers make their own connections between two separate flights here.
However, the airport is not set up for direct transit, so you always have to exit to the public area, take the escalator to the 1st floor and go through security again.