help son see daddy

I am trying to help out a very loving father who is heartbroken  His son lives with his mother in Ontario while he lives in bc to be with his unborn and the mother while they are having medical difficulties . His son has been asking to come to bc to see his daddy and he simply can not afford it he would like to be in bc for the birth of his baby brother in april . Anything helps please help this little boy see his daddy and be there for his brothers birth