The odds of flopping a flush when you have two suited cards is 1 in 118, but even when you do flop a flush, you have to be careful that your flush holds up for the rest of the hand. Any player with a higher card of the same suit as your flush has a little more than a 2:1 chance of hitting another card on the turn or river to beat you.
Most new poker players like to play suited cards in hopes of hitting a flush. Hitting a flush may seem like it’s going to pay off, but it also has potential to be a disaster hand. The odds of two players flopping a flush at the same time are 205:1. That may seem like a long shot, but when it does happen the results are usually very costly for the player with the smaller flush.
The best way to avoid this costly mistake is to only play suited hands that have an ace or king in them. If you only play ace-suited and king-suited, it will lower the number of times you end up in this situation, and it will increase your chances of being the player with the bigger flush when you are in a hand where two players flop a flush.
Good players follow this rule about suited cards, so playing smaller suited cards is even more dangerous against a shark who has you beat and knows just how to play it so they can get as many of your chips as they possibly can.
More often you’ll be drawing to a flush when two cards of the same suit as the ones you’re holding come on the board. If you get the flush draw on the flop, the odds of completing it on the turn or river are 3.5:1. If you miss the flush on the turn, then your odds of completing it on the river are only 4.2:1. By knowing those odds, you can figure out if it’s worth the risk to call any bets that may have been made at the pot.