Kim Kardashian, Khloe and Kris Jenner want one thing to be very clear to Tristan Thompson -- they're gonna support him in one of the hardest times of his life, as they all plan to be with him when his mom is laid to rest.
Sources with direct knowledge tell TMZ ... the trio is planning to fly to Toronto later this week to be in attendance for Andrea's funeral. We're told Tristan paid for and planned the whole service, which will be an intimate and beautiful celebration of her life.