Cheap Flights To Jeju (CJU) | 2026 Deals, Routes & Tips

Finding Cheap Flights To Jeju

Jeju is served by Jeju International Airport (CJU), one of the busiest airports in South Korea by passenger traffic, driven overwhelmingly by domestic tourism into the island. It offers an incredibly dense network of flights from mainland South Korea into CJU and a focused selection of international routes primarily from East and Southeast Asia.

The airport's most important routes into Jeju are the high-frequency domestic shuttles from Seoul's two airports: Gimpo (GMP) and Incheon (ICN). Flights from other major Korean cities like Busan (PUS), Daegu (TAE), and Cheongju (CJJ) into CJU are also numerous. For international travel into Jeju, direct flights arrive from key cities in China, Japan, Taiwan, Thailand, Vietnam, and Malaysia, catering to the growing international tourist market heading to the island.

Jeju Airport is a major arrival point for South Korea's low-cost carriers (LCCs). Airlines like Jeju Air, Air Busan, Jin Air, T'way Air, and Eastar Jet operate the vast majority of domestic flights into CJU and many international routes to Jeju, creating fierce competition. Full-service carriers Korean Air and Asiana Airlines also serve key domestic and international routes into Jeju.

To find cheap flights to Jeju, especially from mainland Korea, book as early as possible and be extremely flexible with arrival dates into CJU. Last-minute fares into Jeju can be very high due to demand. Use Korean travel and airline websites/apps for the best deals into CJU. For international travel to Jeju from elsewhere in Asia, book regional flights 1-2 months in advance. To reach Jeju from destinations beyond East Asia, the most economical option is typically to take a long-haul flight into Incheon International Airport (ICN) near Seoul and then book a separate domestic ticket to Jeju from there, as ICN offers a far greater selection of intercontinental airlines and competitive fares before connecting to CJU.