What’s the closest black hole to earth, and how long would it take to get here?

Question: What's the closest black hole to earth, and how long would it take to get here?
- Keywords:
  black hole,
  earth
Asked by chicken is cool to William, Roberto, Karen, Jasmine, Chinna on 7 Nov 2018.
- William answered on 7 Nov 2018:
  
  It is many thousand light years away, 3 thousand light years i think. there are about 6 trillion miles in a light year so…. that is a really long distance 😛

Question: What's the closest black hole to earth, and how long would it take to get here?