A flexible polymer packaging bag is provided with an easy-open end seal feature for easily tearing through a fused seal. The bag has a pair of side walls, a pair of end walls, a top wall, and a bottom wall, in which the walls form an interior space. A stack of articles are contained in the interior space. A seal is in one of the walls and includes at least one seal area and at least one weakened zone. A frangible line for opening the bag is in the one wall and intersects the seal at the weakened zone, so that the frangible line can be easily tom where it intersects the seal.