Located close by the El Tajin ruins and the interchange city of Poza Rica, Papantla is known for its downtown square (Zocalo) and its cathedral, where voladores (flyers) perform. Other specialties are its homegrown vanilla liquor.
ADO services Papantla, their bus station is Juárez 207, five blocks down hill from the zócalo.
From many destinations it is easier to transfer buses in Poza Rica than to catch a direct bus to Papanta.
Buses from Vera Cruz to Papantla (M$178, 4 - 4.25 hours) leave at 07:00, 08:00, 10:00, 12:45, 17:45, 19:00, 20:00 Buses from Poza Rica to Papantla (M$22, 0.45 hours) leave 24 hours a day (generally one every hour, sometimes more)
Hail a taxi for M$15 - M$20 to take you around town. The taxi may have someone else in it, if this bothers you just wait for the next taxi.
Local buses to surrounding towns and El Tajín leave from the corner of 16 de Septiembre and Curato. The Papantla locals are very friendly, and will help you locate which bus to catch.
The main reason people arrive in Papantla is to visit the ruins of El Tajín.
A small, hole in the wall style restaurant is tucked away near 16 de Septiembre and Curato. The staff are friendly, and the breakfast M$35.
Small bakery on Lázaro Muñoz, half block down from zócalo. The owners are very friendly, and speak a little english.
Buses to Vera Cruz (M$178, time 3.35 - 4.15 hours) leave at 01:00, 09:25, 09:30, 12:30, 14:50, 17:10, 17:50
For many destinations it may be quicker to transfer in Poza Rica. Buses to Poza Rica to (M$22, 0.40 hours) leave 24 hours a day (generally one every hour, sometimes more), you are to check timetable online using ADO  or ticketbus  for exact times.
Be aware that buses to do originate in Papantla, so it may pay to book ahead at holiday times.