I actually agree with your decision in the circumstances.

When I found out my father was dying I knew I had funds for one trip only, and chose to spend a few days with him before he got too ill to know I was there. I did not fly back for his funeral several months later and my sister has not allowed to forget it, some 25 years later.

Each circumstance is different and you must do what is right for you. I have never regretted my decision, and you shouldn't either.