Neither Marvel nor Disney has released the official Avengers: Infinity War runtime yet.
The directors of Avengers: Infinity War, Anthony and Joe Russo, offer an update on the editing process of Avengers 4.
Leading up to the release of Infinity War, there has been a great deal of speculation about its final runtime.
That said, if the secrecy surrounding the Avengers: Infinity War runtime is any indication, it may not be until the week Avengers 4 is released that we know the concluding chapter’s exact runtime.