Real Sul Turismo offers 2 daily buses from Porto Franco to Dom Pedro. Though the average price for this trip is $21, you can find tickets starting at $21. The trip between the two cities usually takes about 550.
Based on 930 reviews, the company was rated 3.4 stars on Busbud. Travelers were especially satisfied with the departure location and the temperature but often complained with the wifi. Crucero del Norte ticket prices on this trip start at $23
A good way to travel this route is with Crisbell buses. The company offers 1 daily departures, with ticket prices starting at $29 and the shortest trip taking about 405. Crisbell gets you where you want to go for a fair price.