Jesus said, "No one comes to God but through ME". Acts 4 says "there is no other name under Heaven by which we may be saved".
What of those who have never HEARD of Jesus? Are they outta luck? No! According to Romans 1:19-20, ignorance is NO EXCUSE; He is revealed in some measure, to EVERY person; and besides He can be seen
in what He has made. Which brings us to Romans 2; Jesus, now being "The Law", can still be written in the hearts of even those who have never HEARD of Him (see 2:14-16).
So, though a person cannot go to Heaven apart from Jesus, he/she can absolutely go to Heaven
even never having heard of Him!