If someone ask whether you will come “你来吗？”you can answer “我来啊！”or more simply “来的”。 我来到 need to add detail information, like place name-我坐火车来到北京; or other information 她款款来到了我的面前。 你就这样不经意得来到了我的生命。 我来到阿 is weird，I think it is wrong.

You can answer with "来！( very sure about your coming)” ， " 来啊！( with hint NEEDLESS TO SAY or ask "， " 我会来的！ ( with hint don't worry )“ or “好的, 我会准时到。( polite and formal way, but maybe with a little bit distance )" Actually，you can say whatever the above. Just tell you the little bit difference between them ....

sorry, change 得 to 的

you can say “好的，我会准时到得！”

If you want to go or accept the invitation,you can say好的，我会去。