Flush

A flush is a five-card poker hand in which all five cards share the same suit: hearts, diamonds, clubs, or spades. The cards do not need to be consecutive. In standard poker rankings, a flush beats a straight and loses to a full house. In video poker and casino table games, the payout or settlement value depends on the exact rules and paytable.

Plain Talk

A flush is about suit, not sequence.

• A♠ 10♠ 8♠ 5♠ 2♠ is a flush.
• K♥ 9♥ 7♥ 4♥ 3♥ is a flush.
• 9♣ 8♣ 7♣ 6♣ 5♣ is not an ordinary flush; it is a straight flush.
• A♦ K♦ Q♦ J♦ 10♦ is a royal flush.

The highest card normally breaks a tie between two ordinary flushes. If the highest cards are equal, compare the next-highest cards in order until the tie is resolved. Suits themselves usually do not have a ranking in standard casino poker rules.

Where the Term Appears

You will see “flush” in several casino settings:

The name remains the same, but the number of cards, ranking order, wild-card rules, and payout can change by game.

Standard Five-Card Ranking

In conventional high poker, the relevant order is:

1. Straight
2. Flush
3. Full house
4. Four of a kind
5. Straight flush
6. Royal flush as the highest named straight flush

A flush therefore beats:

• high card;
• one pair;
• two pair;
• three of a kind;
• a straight.

It normally loses to:

• a full house;
• four of a kind;
• a straight flush.

For the next rank above it, see Full House. For the rank below it, see Straight.

How Two Flushes Are Compared

Suppose Player A has A♠ J♠ 8♠ 4♠ 2♠ and Player B has A♥ 10♥ 9♥ 7♥ 3♥.

Both have an ace-high flush. Compare the second card:

• Player A: J
• Player B: 10

Player A wins because the jack is higher than the ten.

Now suppose both hands are A-J-8-4-2 in different suits. In standard poker, they are equal. Spades do not automatically beat hearts, and clubs do not automatically rank below diamonds.

Casino procedures and approved rules control the exact settlement, so players should not rely on informal “suit order” traditions from private games.

Flush in Video Poker

In video poker, a flush is both a finished hand and a draw target. Its value depends heavily on the paytable.

A common Jacks or Better paytable may show the flush as 6-for-1 or 5-for-1. That one-unit difference matters because flushes occur often enough to affect the game’s total return.

For a five-credit wager:

The difference is $5 every time a five-credit flush is completed. Across a very large number of hands, that reduced payout contributes to a lower overall return.

That is why players compare complete paytables rather than merely looking for the same game title. Read Why Do Video Poker Players Care About Pay Tables? for the larger point.

Four to a Flush

“Four to a flush” means four cards share a suit and one card does not. The hand is not yet a flush. The player must draw one more card of the matching suit.

Example:

• A♣ 9♣ 6♣ 3♣ K♦

If the player discards K♦, nine clubs remain among the 47 unseen cards because 13 clubs exist in the deck and four are already held.

Probability of completing the flush = 9 ÷ 47 ≈ 19.15%

That probability is useful, but it does not by itself prove that holding four to a flush is the best video-poker play. The alternative cards may include:

• a high pair;
• four to a royal flush;
• four to a straight flush;
• a made straight;
• a made flush already;
• wild-card combinations;
• penalty-card effects.

The correct hold comes from expected value, not from the visual appeal of suited cards.

Expected-Value Example

Assume a simplified game where a completed flush returns 6 units and all other one-card draw outcomes return 0. Holding four to a flush gives:

• 9 winning cards;
• 38 non-flush cards;
• 47 possible draws.

Simplified expected return:

(9 ÷ 47) × 6 = 1.1489 units

Real video-poker analysis is more complex because some non-flush draws may form pairs, straights, or other paying hands. Strategy software evaluates every possible replacement card and every final payout.

For the decision process, read Hold/Draw and Expected Value of a Hold.

A Made Flush Versus a Flush Draw

Players sometimes use “flush” loosely when they mean “flush draw.” The distinction matters:

A dealer or floor supervisor settles the cards actually present, not the draw the player hoped to complete.

Flush in Community-Card Games

In a Texas Hold’em-style game, players use the best five-card combination available from their private cards and the board. A player does not need both private cards to make a flush.

Example board:

• A♠ 10♠ 7♠ 4♠ 2♦

Player A holds K♠ 9♥ and has an ace-high flush using K♠ plus four spades from the board.

Player B holds Q♠ J♠ and also has an ace-high flush, but the full comparison determines whose five-card flush is higher.

If all five best cards are on the board, the players may tie. Extra cards outside the best five do not act as arbitrary kickers.

Tournament procedures such as the Poker TDA rules support standardized hand reading and pot-award practice, while each casino’s approved game rules govern its live operation.

Three-Card Poker Warning

Three-card poker games often use a different ranking order because the mathematics of three-card hands differs from five-card poker. In common Three Card Poker rules, a straight may rank above a flush because a three-card straight is less frequent than a three-card flush.

That surprises players who memorize only the conventional five-card ranking.

The lesson is simple: “flush beats straight” is correct for standard five-card poker, but not a universal statement covering every proprietary casino game. Read the posted rules before settling a side bet or comparing a three-card hand.

Wild Cards Can Change the Meaning

Jokers, deuces wild, or game-specific wild symbols can complete a flush without five natural suited cards. The paytable may distinguish between:

• natural flush;
• wild flush;
• five of a kind;
• wild royal flush;
• natural royal flush.

Wild-card games also change strategy. A hand that looks like four to a natural flush may have a stronger route through a wild card, straight flush, or five-of-a-kind possibility.

The word “flush” is therefore incomplete without the rules of the game.

From the Casino Side

From the casino side, flush is a settlement category embedded in approved rules, machine math, procedures, and paytables.

On a live table, the casino must ensure:

• the correct number of cards is used;
• the best legal hand is identified;
• wild cards are applied correctly;
• ties are resolved under the approved ranking;
• bonus and side-bet payouts use the posted table;
• cards remain visible during a dispute;
• surveillance can reconstruct the hand when necessary.

On video poker, the machine evaluates the final hand automatically. Game certification and approved software control the recognition and payout logic. The operational task becomes verifying that the displayed result, credits, meter movement, and hand-pay process match the approved configuration.

Common Dealer and Player Errors

Misreading four suited cards as a flush

A standard flush needs five cards. Four to a flush is only a draw.

Ranking suits

In standard high poker, one suit does not beat another merely because of color or symbol.

Ignoring the best-five-card rule

Community-card games use the best five cards, not every card in sight.

Paying an ordinary flush as a straight flush

A straight flush must be both suited and consecutive.

Applying five-card ranking to a three-card game

Proprietary three-card games may rank straight and flush differently.

Assuming identical pay from identical game names

Video-poker versions can use different flush payouts and therefore different total returns.

Hard Truth

A flush is easy to recognize, but its dollar value is never contained in the word alone. The paytable, card count, wild-card rules, and game procedure decide what it is worth.

Practical Checklist

When a flush matters:

• Count the number of cards in the evaluated hand.
• Confirm that all five relevant cards share one suit.
• Check whether the cards also form a straight flush.
• Use the game’s ranking order, not a remembered rule from another game.
• Compare flushes from the highest card downward.
• Do not rank suits unless the approved rules explicitly require it.
• In video poker, read the flush payout before choosing a game.
• Use a strategy chart for hold decisions rather than guessing.
• Keep cards visible and call the floor if a live-table settlement is disputed.

FAQ

Does a flush need five cards?

In standard five-card poker rankings, yes. Some proprietary three-card games also use the word flush for three suited cards, but their ranking system is game-specific.

Does a flush beat a straight?

Yes in standard five-card high poker. Not necessarily in a three-card proprietary game.

Does a flush beat a full house?

No. A full house ranks above a flush in standard poker.

What happens if two players have a flush?

Compare the highest card in each five-card flush, then the second-highest, and continue until the tie is broken. If all five ranks match, the hands tie under standard rules.

Are suits ranked?

Usually no. Spades, hearts, diamonds, and clubs are normally equal for hand comparison.

What is the chance of completing four to a flush in video poker?

With four suited cards held from a standard deck and one card drawn, nine suited cards remain among 47 unseen cards, about 19.15%.

Does every video-poker flush pay the same?

No. The paytable controls the payout. A change from 6 to 5 credits per coin affects long-run return and sometimes strategy priorities.

Is a royal flush a type of flush?

Yes. It is the ace-high straight flush A-K-Q-J-10 of one suit and is normally treated as the top named hand.

Deeper Insight: Frequency and Value Are Separate

A hand can be less rare but more valuable in a particular game because the paytable is a designed economic system, not simply a list of natural frequencies. Video-poker returns combine:

• hand probabilities;
• payout amounts;
• player strategy;
• wild-card rules;
• bonus features;
• maximum-credit incentives.

The flush line is one component of the full return. Reducing it can materially change the game even though the symbols, cabinet, and title remain the same.

Core Formula

Expected contribution of a hand = probability of the hand × payout for the hand

If a flush occurs with a particular probability under optimal play, its contribution to return depends directly on what the paytable awards. The complete game return is the sum of the expected contributions from all paying outcomes.

Related Reading

Continue with Straight, Full House, Straight Flush, Royal Flush, and Paytable. For practical play, use Video Poker, Video Poker Hand Rankings, Four to a Royal, and Hold or Draw Decisions.