Drink water. One glass of water for each alcoholic drink you take, hard liquor, wine, beer, doesn't matter. Drink a full glass of water before each alcoholic drink.
Its worked for me and many others I know for over thirty years. By the way, get an aisle seat,and be aware of any "thirty minutes rule." If you follow this advice you will not get drunk, or have a hangover, but you will pee a lot.