- Tresco Airport, also known as Tresco Heliport, is a privately-owned airport located on the island of Tresco in the Isles of Scilly, United Kingdom. It primarily serves as a transportation hub for visitors to the island. The airport has a single runway and is mainly used for helicopter flights. It is operated by the Duchy of Cornwall, which owns the entire island of Tresco. Tresco Airport offers connections to other islands in the Isles of Scilly as well as mainland Cornwall.