A refrigeration cycle apparatus comprising a fan and a heat exchanger to which airflow is supplied from the fan, the heat exchanger comprising: a plate fin; a first flat tube including a first flat surface portion extending in a direction of the airflow supplied from the fan, a first windward end portion located on a windward end portion of the first flat surface portion, and a first leeward end portion located on a leeward end portion of the first flat surface portion, the first flat tube being arranged so as to intersect with the plate fin; and a second flat tube including a second flat surface portion opposed to the first flat surface portion of the first flat tube and extending in the direction of the airflow, a second windward end portion located on a windward end portion of the second flat surface portion, and a second leeward end portion located on a leeward end portion of the second flat surface portion, the second flat tube being spaced from the first flat tube and arranged so as to intersect with the plate fin, the heat exchanger having a single row of flat tubes including the first and second flat tubes (3, the first windward end portion and the second windward end portion being located on an inner side of a peripheral edge of the plate fin, the plate fin includes an elevated portion (23, 24) being formed between the first flat tube and the second flat tube, and the elevated portion (23, 24) being in a form of a louver by cutting one slit and elevating a flat portion on the plate fin located between the first flat tube and the second flat tube, or being in a form of a cut and elevated portion by cutting two slits and elevating a flat portion on the plate fin located between the first flat tube and the second flat tube, the two slits extending in a direction orthogonal to the direction of the airflow, characterized in that the elevated portion (23, 24) being located only between a first imaginary plane connecting the first windward end portion and the second windward end portion, and a second imaginary plane connecting a center of the first flat surface portion and a center of the second flat surface portion. a plate fin; a first flat tube including a first flat surface portion extending in a direction of the airflow supplied from the fan, a first windward end portion located on a windward end portion of the first flat surface portion, and a first leeward end portion located on a leeward end portion of the first flat surface portion, the first flat tube being arranged so as to intersect with the plate fin; and a second flat tube including a second flat surface portion opposed to the first flat surface portion of the first flat tube and extending in the direction of the airflow, a second windward end portion located on a windward end portion of the second flat surface portion, and a second leeward end portion located on a leeward end portion of the second flat surface portion, the second flat tube being spaced from the first flat tube and arranged so as to intersect with the plate fin, the heat exchanger having a single row of flat tubes including the first and second flat tubes (3, the first windward end portion and the second windward end portion being located on an inner side of a peripheral edge of the plate fin, the plate fin includes an elevated portion (23, 24) being formed between the first flat tube and the second flat tube, and the elevated portion (23, 24) being in a form of a louver by cutting one slit and elevating a flat portion on the plate fin located between the first flat tube and the second flat tube, or being in a form of a cut and elevated portion by cutting two slits and elevating a flat portion on the plate fin located between the first flat tube and the second flat tube, the two slits extending in a direction orthogonal to the direction of the airflow, characterized in that the elevated portion (23, 24) being located only between a first imaginary plane connecting the first windward end portion and the second windward end portion, and a second imaginary plane connecting a center of the first flat surface portion and a center of the second flat surface portion.