Cheap Flights From Busan (PUS) | 2026 Deals, Routes & Tips

Finding Cheap Flights From Busan

Busan is served by Gimhae International Airport (PUS), South Korea's second-largest airport and the primary air gateway for the southern part of the country. It offers a comprehensive network of domestic flights, extensive connections across East and Southeast Asia, and a growing number of direct long-haul routes.

The airport's busiest domestic route is the shuttle to Seoul, served at both Gimpo (GMP) for domestic connections and Incheon (ICN) for international travel. Key international destinations include major hubs like Tokyo (NRT, HND), Osaka (KIX), Shanghai (PVG), Hong Kong (HKG), Bangkok (BKK), and Singapore (SIN). Direct long-haul flights operate to cities such as Los Angeles (LAX), Honolulu (HNL), Vienna (VIE), and Frankfurt (FRA), with seasonal variations.

Gimhae International Airport is a focus city for several airlines. Domestic carriers like Korean Air, Asiana Airlines, and low-cost airlines Air Busan, Jin Air, and Jeju Air operate extensive networks. International low-cost carriers such as T'way Air, Peach Aviation, and VietJet Air compete on regional routes. Full-service international airlines including China Eastern, Japan Airlines, and Thai Airways also serve PUS.

To secure cheap flights from Busan, book domestic flights to Seoul (GMP/ICN) a few weeks in advance. For international travel, aim to book 2-4 months ahead. Be flexible with dates; flying on weekdays (Tuesday-Thursday) is often cheaper. Use flight comparison tools to check all airlines, especially low-cost carriers for regional Asian routes. For destinations beyond Asia, compare the cost and convenience of a direct flight from PUS against flying to Seoul-Incheon (ICN) first, as ICN offers a vastly wider range of long-haul flights and potentially more competitive fares.