Complete Guide to KTX
High-Speed Trains

The KTX high-speed trains revolutionized travel in South Korea, offering speed, comfort, and efficiency for both locals and tourists. This guide will dive deep into everything you need to know about KTX trains, from understanding how fast the KTX goes to the best routes and cities you can visit. We’ll also cover essential tips to help you navigate the KTX system smoothly.
Last updated: 18.06.2025

What Are KTX Trains?

KTX trains (Korea Train Express) are South Korea's flagship high-speed rail service, known for connecting major cities with impressive speed and punctuality. Operating since 2004, these sleek, modern trains have become a vital part of the nation's transportation infrastructure, revolutionizing travel by offering a convenient and environmentally friendly alternative to driving or flying. They are among the fastest in the world, significantly reducing travel time between cities like Seoul, Busan, and beyond, allowing you to experience more within a short time.
The trains offer multiple comfort options, from economy seats to more spacious business class areas, making the KTX train an ideal choice for both business travelers and tourists. Whether you’re heading out for a day trip or an extended holiday, trains provide unmatched convenience and comfort.

Where Can You Go with KTX?

The KTX train network is extensive, covering some of South Korea's most iconic cities and destinations. One of the most popular routes is the train from Seoul to Busan, which takes just under 2.5 hours, making it perfect for quick weekend getaways or day trips. Busan, South Korea's second-largest city, is famous for its stunning beaches, lively port area, and vibrant food scene.
Another highly-traveled route is from Seoul to Gwangju. For those interested in exploring the heart of Korea’s tech industry while also immersing in traditional culture, the Seoul to Daegu route is ideal, with a travel time of just 1.5 hours. Other popular routes include Seoul to Daejeon, Seoul to Mokpo, and Seoul to Jeonju, each offering a unique blend of vibrant nightlife, deep cultural roots, and scenic beauty. These high-speed train routes are designed for travelers who want to explore South Korea quickly and comfortably. The KTX train network provides seamless access to major cities, historical sites, natural landscapes, and modern urban experiences.

KTX Speed: How Fast Can You Travel Across South Korea?

One of the key attractions of the KTX train is its speed. KTX trains are among the fastest in the world, reaching speeds of up to 300 km/h (186 mph). This remarkable speed allows travelers to cover long distances quickly, making it one of the most efficient modes of transportation in South Korea. For example, the journey from Seoul to Busan, which could take over 4 hours by car, is completed in just 2.5 hours on the KTX train.

How fast is the KTX? In just under 3 hours, you can travel across the entire length of the country, from the bustling capital to the coastal city of Busan. This high-speed rail system is not only fast but also highly reliable, ensuring minimal delays and a smooth ride throughout the journey. Whether you’re heading to a business meeting or a weekend getaway, the KTX train offers unmatched convenience and speed.

Booking KTX Tickets

When booking online, ensure you have your travel dates and destination in mind. There are different classes available, including economy and business class, each offering varying levels of comfort. Business class passengers enjoy more spacious seating and additional perks, making it perfect for those seeking extra comfort during long rides.

Booking a KTX ticket is straightforward and can be done in various ways. You can purchase tickets online, at kiosks at KTX stations, or through travel agencies. To ensure a smooth booking process, we recommend checking out the post on How to Book KTX Tickets for detailed steps.

Some trains may have quiet zones, which are perfect for those looking to relax or work without interruptions. Make sure to keep noise to a minimum, respect other passengers, and avoid using loudspeakers or making phone calls in these areas.

KTX vs. Other Transportation in South Korea

When traveling around South Korea, you might wonder whether KTX high-speed trains are your best option compared to other modes of transport. Here’s a quick comparison!

KTX vs. Buses: While buses are an affordable option, they are slower compared to the KTX train. A trip from Seoul to Busan by bus can take up to 4.5 hours, whereas the KTX train takes just 2.5 hours.

KTX vs. Flights: Flights between major cities in South Korea can be expensive and time-consuming, especially with security and boarding procedures. The KTX train offers a faster, more convenient option, allowing you to avoid the hassle of airports.

Wrapping Up Your KTX Adventure

As you can see, KTX high-speed trains offer a fast, reliable, and convenient mode of transport across South Korea. Whether you’re traveling for business or pleasure, you can count on KTX trains to help you explore the country's most vibrant cities and scenic landscapes with ease. Don’t forget to book your tickets early, take advantage of the different travel class options, and follow our tips to make your journey smooth and stress-free.
Take your travel to the next level by enjoying the convenience of KTX trains and experience South Korea like never before. Safe travels!

Tips for Seamless Travel on the KTX

The KTX train is designed for ease of use, but there are a few tips to make your journey even smoother. If you're unsure about navigating the train system, you can check out How to Use the KTX guide for detailed advice on making your experience as smooth as possible.

Arrive Early

Make sure to arrive at the station at least 30 minutes before departure. This allows enough time to find your platform and get settled.
Check Train Schedules

The KTX operates on a strict timetable, and trains are generally punctual. You can check schedules online or via mobile apps.
Use Your T-money Card

For easy payment on trains, especially if you plan on using local transportation during your trip, consider purchasing a T-money card. It’s a rechargeable card that works for buses, subways, and the KTX.
Keep Your Ticket Handy

Whether you’re traveling with a physical ticket or an e-ticket, always keep it easily accessible. Having your ticket ready speeds up the boarding process and ensures a smooth start to your trip.
Be Mindful of Luggage

The KTX trains have designated luggage racks for large suitcases, but they can get full quickly. If you have smaller bags or carry-ons, you can place them in overhead compartments or under the seats.
Navigating Train System

If you're unsure about navigating the train system, you can check out How to Use the KTX guide for detailed advice on making your experience as smooth as possible.

If you’re ready to explore South Korea in the fastest way possible, hop on a KTX train and start your journey today! Book the KTX high-speed train ticket for your next South Korean adventure. Experience the thrill of fast, comfortable travel as you zip through scenic landscapes and discover the convenience of seamless connections between cities.