You suffered his behavior or his absence. So, you are entitled to be angry you didn't get what you needed from him. But, you need to find a way to deal with your feelings without risking the relationship you have with him now, and without risking pushing him away.
Do not attack him. Do not blame him. To do so would be what's called You Statements. When you tell him what he did wrong, you put him on the defensive, and he will counter-attack.
Instead, make only I statements. Rather than criticize him for being drunk or unavailable, say how you felt when he was drunk or unavailable. A subtle difference, but a really important one because he can't argue with how you felt.
Start with a clear feeling statement -- what it is you are angry/hurt/sad about. You need to be specific. Such as, "I'm really angry that you never came to any of my games." (Not that "You never cared enough about me to come to my games." That's telling him how he felt.) Or, "You were so drunk when I was in high school, I could never bring my friends over. I felt ashamed."
In preparing to talk with your father, make sure you do it in a way that leaves you feeling good about yourself. Don't attack him (as explained above), but also don't become defensive if he tries to turn the issue back on you. Regardless his reactions, stay with your I statements about your feelings. This will protect you from making nasty or destructive comments. Nasty and destructive comments are what you do when you are feeling defensive.
It really is possible to talk with your father in a calm, non-defensive manner -- regardless how he responds to you. Even if he says he was never drunk (or mean, etc), stick to your feelings, how it felt being around him then. So, whether he acknowledges anything or not, you will end the conversation feeling good about yourself, proud of yourself – even if you aren't proud of him.
Before you actually talk with him, know what you want from the conversation. If you don't know what you want out of talking with him, you probably won't get it. Or, you won't know if you've gotten it or not. You may want an apology, or you may just want to know you have told him what you need to say, regardless his reaction. While a positive response from him would be nice, it does not have to be necessary.
Your father may respond wonderfully. But, even if not, just saying what you need to say, and saying it in a way that makes you feel good about yourself, will give you the best of what you need -- from yourself!
Do not attempt this type of conversation "off the cuff." This is not the time for spontaneity. Preparing what you want to say, preparing how you might respond to a number of his possible reactions will put you in a better position and protect you from becoming defensive or from personalizing. Once you know what you want to say, practice, practice, practice. This may sound silly, but this really is an important step in getting what you want.
He may not respond well – you do have to accept that risk. But if he does, you will have given him the very best Father's Day gift: a chance to hear you, make amends and get to know you for the wonderful grown-up daughter you have become.