Pukkelpop is held close to the city of Hasselt Belgium. It is a pretty accessible point to reach. The various modes you can reach the festival grounds are as follows:
If you planning to attend Pukkelpop from overseas locations, in that case, Brussels would be the nearest airport from where you can reach Hasselt via trains easily.
Pukkelpop can be reached by train via Hasselt station or Kiewit station. Kiewit station (one stop after Hasselt station) is within walking distance of the festival site (only 500m). Further details can be accessed here. Also, Pukkelpop festival offers special travel tickets which include easy to and fro trips to the festival site. Pukkelpop free e-tickets can be accessed here.
From across Limburg, you can easily reach Pukkelpop with the buses of De Lijn. Your bus ticket is included in the price of your festival ticket. Also, shuttle services are open in various spots across in Netherlands and UK as well.
If you planning to attend the festival via your own vehicle then sure to plan your routes accordingly. the Kempische Steenweg (the main road leading to Pukkelpop) will be closed to all motorized traffic around the Pukkelpop site. The stretch of road between the junctions Vijversstraat/Tulpinstraat and Europalaan/Walenstraat will only be accessible to cyclists, festivalgoers, and local residents. This is the section from Kiewit train station to the church; the festival site and Camping Chill are situated in between