My son just turned 1 year old a few days ago and I am planning to start introducing him to cup milk feeding instead of bottle feeding. Is it too early or is there any tips to help this transition of bottles to cup? Thank you.

Think it is worth a try. You can also consider trying to let your child learn to drink from a cup with the help of a straw. Some of my friends did that and had great success. Their children catch on quickly. You can consider that too! :)