The bus fare is free if you have a pre-booked ticket to Perlan:

→ Ticket to Wonders of Iceland
→ Ticket to Áróra Planetarium show
→ Ticket to the 360° Observation Deck

You can buy an Observation Deck ticket on the bus for ISK 890. It includes:

→ Access to the 360° Observation Deck
→ A discount of ISK 890 on any exhibition ticket at Perlan
→ Bus fare on the day of your visit (both ways)

The bus stops at 4 locations: