1. Major routes 

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  - Gyeongbu Line: This 447.1-kilometer-long route connects Seoul and Busan and welcomes the greatest number of passengers among all routes. It is a popular route because it allows travelers to visit Busan, Korea’s second largest city, in a fast, convenient fashion. It also allows easy access to culture-rich cities such as Daejeon and Singyeongju so it is a recommended route for travelers who are planning a short but solid trip.
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  - Honam Line: This 252.5-kilometer-long route runs from Seodaejeon to Mokpo and is an important route that connects Seoul and regions of Jeollabuk-do and Jeollanam-do, collectively referred to as Jeolla-do or Honam region. Its major stops include Iksan, Jeongeup, Gwangju-Songjeong, Naju and Mokpo. Among the destinations, Jeongeup Station is especially famous in fall as many hikers visit Naejangsan Mountain to see beautiful autumn fall foliage. Mokpo, one of the three major ports in the Honam region, is also a popular destination among tourists.
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  - Gangneung Line: This line goes from Cheongnyangni Station in Seoul all the way to Gangneung Station and is the route that remarkably reduced the travel time from the metropolitan area to the East Coast region in Gangwon-do by more than four hours. Its major stops include Yangpyeong, Seowonju, Pyeongchang and Gangneung. This route is recommended for those who wish to enjoy the beautiful sea on the East Coast. 

2. Types of Trains 

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  KTX (Korea Train eXpress): High-speed express train that runs at a maximum speed of 300 km/h. It departs from Seoul Station, Yongsan Station and Cheongnyangni Station, and has routes that connect to the cities of Busan, Pohang, Mokpo, Yeosu, Gangneung (Donghae) and Andong.
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  SRT (Super Rapid Train): High-speed express train with a maximum speed of 300 km/h that leaves Suseo Station and heads to Busan or Mokpo.
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  ITX-Cheongchun: Train with a maximum speed of 180 km/h that runs from Yongsan Station to Chuncheon.
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  Saemaeul Train/ITX-Saemaeul: A premium-class conventional train that departs from Seoul Station (Gyeongbu Line), Yongsan Station (Honam Line) and Cheongnyangni Station (Andong-bound).
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  Mugunghwa Train: A conventional train that departs from Seoul Station (Gyeongbu Line), Yongsan Station (Honam Line) and Cheongnyangni Station (Andong- or Donghae-bound). It makes stops at small stations where KTX and premium trains by pass.
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  Tourist trains: Tourist trains are available in 12 different themes, including a wine-themed train, taking passengers to the mountains, seas and marketplaces around the country.

3. How to use trains in Korea

You can purchase train tickets at a ticket office, KORAIL website (www.letskorail.com), KORAILTalk (app), ticketing kiosk, NAVER Train Booking, or KakaoT. Tickets can usually be purchased starting from one month to 20 minutes before the departure date. If you buy tickets online, you can also choose the desired seats in advance by clicking the “Reserve Seat” button. The seats are positioned in two directions, forward and backward, which you can choose depending on your preference and situation. KTX and SRT amenities include restrooms, nursing rooms, diaper changing tables (located in passages of cabins No. 8 and 16), and vending machines, while Saemaeul and Mugunghwa trains operate cafe cars that have a snack bar and Internet access depending on the route. For questions related to booking tickets, contact the KORAIL Customer Center (+82-1599-7777) for a friendly consultation (08:00-22:00 daily).