Domestic and internal flights in South Korea

Domestic and internal flights in South Korea

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Best domestic flight deals in South Korea

Compare cheap domestic flights and discover the best departure fares.

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Why Kiwi.com is perfect for domestic flights in South Korea

Compare every domestic carrier and route flying inside South Korea on a single search, and book the dates that fit your trip and your budget.

Cheap domestic flights in South Korea

How to find cheap domestic flights in South Korea

Why book domestic flights with Kiwi.com

When to book domestic flights for the best price

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Explore domestic flight routes in South Korea

Browse popular domestic routes, destination cities, and departure cities across South Korea.

Popular domestic flight routes

Top domestic destinations in South Korea

Popular departure cities in South Korea

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Frequently asked questions about domestic flights in South Korea

Which airlines operate domestic flights in South Korea?

Based on Kiwi.com booking data (last 12 months as of May 2026), the top airlines on Kiwi.com Korean domestic bookings are Jeju Air (28.4% share), Jin Air (17.9%), Eastar Jet (16.0%), Air Busan (14.5%) and Korean Air (11.3%).

How long is a typical Korean domestic flight?

Short. Seoul (Gimpo)–Jeju is about 1h 5m, Busan–Jeju roughly 50 minutes, and Seoul–Busan around 1 hour. Most Korean domestic flights are under 1h 15m.

What is the busiest domestic route in South Korea?

Based on Kiwi.com booking data (last 12 months as of May 2026), the most-booked Korean domestic city pair on Kiwi.com is Seoul–Jeju City, followed by Busan–Jeju City and Seoul–Busan. Seoul–Jeju is also one of the busiest air corridors in the world.

How early should I arrive at the airport for a domestic flight in Korea?

Aim for 90 minutes before departure with hand luggage, or 2 hours if you're checking a bag. Gimpo (GMP) and Jeju (CJU) can get very busy during weekends and Korean holiday periods (Chuseok, Lunar New Year).

Can I bring liquids on a domestic flight in South Korea?

Yes, with the standard limit: liquids in containers of 100 ml or less, all fitting in a single transparent 1-litre bag. Larger liquids must go in checked baggage.

Are Korean Air and Asiana merging?

Korean Air completed the acquisition of Asiana Airlines in late 2024, after multiple competition-authority reviews. The merged group is operating both brands through a transition period, with full integration planned over several years.

What's the best low-cost airline for domestic flights in Korea?

Based on Kiwi.com booking data (last 12 months as of May 2026), Jeju Air is the largest LCC on Kiwi.com Korean domestic bookings (28.4% share). Jin Air, Eastar Jet and Air Busan are the next-biggest LCCs — fares are very close on competitive routes.

Were there recent South Korea domestic flight cancellations?

Korean domestic schedules occasionally see disruption from weather (winter snow at Jeju, summer typhoons) or airline operational issues. If a disruption affects your booking with self-transfer flights, the Kiwi.com Guarantee gives you a credit for an alternative flight or assisted refund.