University student Elin Ersson booked what she thought was the same flight as the Afghan, refusing to sit down unless he was taken off the plane.
The migrant in question was not on the flight after all, but another Afghan was onboard for deportation after serving a prison sentence.
Since the protest in July 2018, both Afghans have been expelled from Sweden.
Ersson, 21, broadcasted her protest on Facebook from the Turkish Airlines plane, which was bound for Istanbul, Turkey, from Gothenburg, Sweden.
