Seeing a flag in your dream typically represents leaders, rulers, judges, and scholars. If you carry a flag in your dream, it may symbolize signing a marriage contract. Additionally, seeing a flag can indicate a warning to avoid conflicts. A flag in your dream points to important decisions and relationships in your life, reflecting your social status and responsibilities.
From Imam Muhammad Ibn Seerin's Dictionary of Dreams According to Islamic Inner Traditions â entry "Flag" (page 168).
In general, flags in a dream represent leaders, governors, judges and scholars. Carrying a flag in a dream means signing a marriage contract. A flag in a dream also means avoiding a dispute. Carrying a flag and a spear in a dream represents one's death or the sudden death of his son. A hoisted banner inside one's house in a dream means a funeral. Carrying a flag in a dream also connotes a woman. Carrying a red flag in a dream also could represent an evil woman. If it is a white flag, then it represents a pious and a chaste woman. Carrying a flag of many colors in a dream represents a corrupt woman. If one is given a flag to carry, and if he leads a parade of colorful flags in his dream, it means that he will rise in station and receive honor. To take a flag away from someone in a dream means removing him from office. If one
sees a black flag in a dream, it could represent an ominous woman. A black flag in a dream also represents a man of knowledge. A white flag in a dream represents jealousy. A yellow flag represents an epidemic disease and a green flag means a journey by land. (Also see Banner; Colors; Honor; Laurel)
Note: Islamic dream interpretation depends on the dreamer's circumstances and state. This is a general guide drawn directly from the source book.