Nearly 50 years since Martin Scorsese delivered one of his greatest movies, there are still those looking to have the Taxi Driver ending explained. Taxi Driver builds to a bloody climax and concludes with a cryptic sequence of events events that may be in Travis Bickle’s head. When interpreted literally, the 1976 film ends with Travis Bickle saving an adolescent sex worker by killing her pimps. However, a closer look implies that Travis’ life ends in a figurative hell that he references throughout Taxi Driver.
https://screenrant.com/taxi-driver-ending-travis-bickle-explained/