Did you know that Jeju to Seoul is the busiest domestic flight route in the world?
That's right! Over 14 million people fly that route each year, and you could be one of them!
Book Domestic Flights in South Korea
Book cheap domestic flights at Alternative Airlines
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Book domestic South Korea flights at Alternative Airlines
Ready to book a domestic South Korea flight? Then you're at the perfect place!
Alternative Airlines is an accredited flight booking site with a 4.9-star rating on Trustpilot. We offer flights across the globe, including within South Korea.
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Book your domestic South Korea flights today by scrolling up to our search bar or clicking one of the popular routes below. Alternatively, read on to discover more about flying domestically in South Korea!
Popular domestic flights in South Korea
Why book domestic flights within South Korea?
Faster travel 🏃
Rather than driving for several hours, arrive at your next destination in under an hour.
A necessity for some locations 🏝️
Jeju Island, one of South Korea's most popular destinations, can be difficult to reach unless you're flying to Jeju International Airport (CJU).
Affordability 💸
At Alternative Airlines, you can select from several low-cost carriers that let you fly for less. Some low-cost airlines available include Jeju Air, Jin Air, Air Busan, Eastar Jet, and T'way.
Popular airports in South Korea
| AIRLINE | OPERATING BASE/HUB | ALLIANCE |
|---|---|---|
| Air Busan | Gimhae International Airport | -- |
| Air Seoul | Incheon International Airport | -- |
| Eastar Jet | Gimpo International Airport | -- |
| Jeju Air | Jeju International Airport, Incheon International Airport | Value Alliance |
| Jin Air | Gimpo International Airport, Incheon International Airport | -- |
| Korean Air | Gimpo International Airport, Incheon International Airport | SkyTeam |
| T'way Air | Gimpo International Airport | -- |
South Korea's full-service carriers
Discover some of South Korea's full-service carriers, all available at Alternative Airlines. They ensure a comfortable trip and a relaxed gateway into your next destination.
Korean Air
Korean Air is the largest airline in South Korea, operating a vast domestic network, flying to destinations including Busan, Cheongju, Daegu, Gwangju, Gunsan Jeju, Jinju, Pohang, Seoul (Gimpo and Incheon), Ulsan, Wonju, Yangyang and Yeosu.
Korean Air remains the market leader, as the largest full-service carrier in South Korea. Passengers flying with Korean Air can enjoy a premium experience, with a number of benefits included in the price of the ticket. For example, the Economy Class on Korean Air is being upgraded to not only include a comfortable wide seating but an individual TV screen. As standard, all Economy passengers can relax with 118-degree reclining seats, which provide personal comfort unlike any other Economy Class seat.
South Korea's low-cost carriers
Spend less on flights so you have more for your destination when you select one of these budget-friendly airlines.
Air Seoul
While Air Seoul predominantly operates international flights, it also serves popular domestic routes, most notably Seoul (Gimpo)-Jeju Island.
Aero K
Aero K is a relatively new airline commencing operations in 2021. It started out with only domestic flights, and although it now flies to international destinations, its domestic routes remain a key focus.
Jeju Air
Jeju Air is the largest low-cost airline operating in Korea. The carrier serves one of the most popular domestic routes in South Korea: Gimpo Airport to Jeju Airport. The airline also operates 20 major routes to destinations within Asia, including Japan, China, Taiwan, Philippines, Vietnam, Thailand and Guam.
Jin Air
Jin Air is a Korean low-cost airline, based in Seoul. The airline is a subsidiary of Korean Air and is the second-largest low-cost carrier in Korea, following Jeju Air, and is one of the most well-connected in the country. As well as providing international flights, the airline connects some of the most popular cities in South Korea, including Busan, Cheongju, Gwangju, Jeju, and Seoul.
Air Busan
Air Busan is a smaller low-cost carrier, based near Busan. The airline operates both domestic and international flights from its base in Gimhae International Airport. One of the most popular routes is Jeju to Busan.
Eastar Jet
Eastar Jet is a low-cost airline headquartered in Banghwa-dong, Seoul. The airline flew its first flight in 2009 from Gimpo International Airport to Jeju International Airport. This remains a popular route for the airline.
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Domestic flights South Korea FAQs
What are domestic flights?
A domestic flight is a flight which departs and arrives within the same country. The flight route will not cross the border of the country. Domestic flights are usually short-haul with a duration of up to a couple of hours.
How many airlines are in South Korea?
Korea currently has six low cost airlines. Combined, the airlines carry more than 40 million passengers each year. Korean Air also provide full-service domestic flights, bringing the total number of scheduled passenger carriers operating in South Korea to seven.
Do I need a passport for a domestic flight in South Korea?
Adult passengers will need to present valid identification at the airport checkpoint in order to travel. On domestic flights, it isn’t necessary for South Korean residents to bring their passports. ARC card, driver’s license, passport, or government-issued welfare card are all valid forms of identification. International travellers are advised to carry their passports.