Question: What season of greys anatomy was the plane crash?
Disambiguated questions and answers: question: What season of Grey's Anatomy was the plane crash involving six doctors?
What season of Grey's Anatomy was the plane crash in Seattle that brought memories of a previous plane crash?
answer: season 8
season 11
question: What season of Grey's Anatomy was the plane crash that claimed the life of Lexie Grey?
What season of Grey's Anatomy was the plane crash in downtown Seattle?
answer: 8
11
Natural Questions answer: the eighth season (from the Wikipedia article "Flight (Grey's Anatomy)")