SUM Air orders four ATR 72-600s, with options for four more, to boost regional connectivity in Korea

New Korean regional carrier SUM Air has ordered four ATR 72-600 turboprops, with options for four additional aircraft. Deliveries are set to begin in 2028.

The airline, which launched operations in March 2026, plans to use the aircraft to enhance connectivity in underserved areas of South Korea, including island airports. This move supports SUM Air’s efforts to link remote regions more effectively.