Duluth International Airport is reportedly haunted by the spirit of a woman who was killed nearby, with sightings including the woman setting off alarms and causing doors to open and close on their own. People believe the spirit lingers because the murderer went to the airport after the stabbing. It is considered a real haunted place open to the public. A woman who was murdered on a nearby road is said to haunt the airport. The belief is that the woman's spirit lingers at the airport because this is where her murderer went immediately after the stabbing. Sightings and occurrences include: The woman setting off alarms. Doors opening and closing on their own. Duluth International Airport is listed as a real haunted place. It is open to the public, allowing people to potentially experience its supernatural activity.