In this article, we are going to look at which carriers are still flying the de Havilland Canada DHC-6 Twin Otter in 2024. However, before we get into that, let's look at the Twin Otter and see what makes it unique. Loved by many for its go-anywhere ruggedness and its STOL capabilities, the de Havilland Canada DHC-6 Twin Otter has been a popular aircraft since it was first introduced in 1966.