Acasta HeliFlight Inc. based in Yellowknife, NT provides specialized Northern Canadian VFR helicopter transportation services across all sectors of the regional economy. Northern Spirit Acasta HeliFlight takes its name from the Acasta Gneiss, a rocky outcrop on Tlicho land in the Slave geological province roughly 300 km north of Yellowknife. Using radiometric dating, this rock – named for the nearby Acasta River east of Great Bear Lake – is said to have formed 4 billion years ago making it the oldest known intact piece of the Earth's crust. Local Passion We simply focus on being the best helicopter service provider that is managed and supported by a team of experienced, knowledgeable and respected industry leaders who are all passionate about supporting positive growth and development in Northern Canada. World-class Helicopter Service Acasta HeliFlight offers a respected combination of professional expertise with deep ties to all corner of the North. All flight operations conducted under Canadian Helicopters Limited.