Grímsstaðir Airport (ICAO: BIGS) is a small general aviation airstrip located in the remote northeastern highlands of Iceland, near the farm and area known as Grímsstaðir. It serves as a local access point for the sparsely populated interior and northern regions of Iceland. The airstrip primarily supports private and chartered light aircraft operations, providing essential access to an area with limited road infrastructure, particularly during winter months. It does not operate scheduled commercial airline services. Grímsstaðir lies near the Jökulsá á Fjöllum river and is in proximity to natural attractions such as Ásbyrgi canyon and Dettifoss waterfall, making it potentially useful for small tourism-related flights in the region.