Using the standard poker hand rankings, a flush beats a straight, regardless of the strength of the straight. The full house is a more rare hand and beats a flush. The odds against making a full house in a game of Texas Hold’em are about 36-to-1, while the odds against making a flush are 32-to-1. A full house beats a flush in the standard poker hand rankings. Not sure what beats a full house or what a straight can beat? Here are the answers to the most commonly-asked poker questions this side of the Strip, so you can know more about these winning poker hands.