When I first started exploring Korea, figuring out the train system felt a bit overwhelming.
KTX, SRT, ITX, Mugunghwa. I didn’t know the differences and just wanted to get from one city to another without overthinking it.
If that’s you right now, don’t worry. I’ve taken all these trains, and in this guide, I’ll walk you through what each one is like, who they’re good for, and how to choose the one that fits your travel plans.
Types of Trains in Korea
1. KTX (Korea Train Express)

KTX is Korea’s high-speed train and the fastest way to travel between major cities. It reaches up to 305 km/h (190 mph) and connects key destinations like Seoul, Busan, Daegu, Daejeon, and more.
What I Like:
- Seoul to Busan in about 2.5 hours
- Easy departures from Seoul Station
- Clean, comfortable, and well-maintained trains
Useful to Know:
- KR Pass works on KTX
- Seats must be reserved
- Slightly more expensive than other options, but worth it if you’re short on time
2. SRT (Super Rapid Train)

SRT is another high-speed train, operated by a different company. It runs on similar routes as KTX but departs from Suseo Station in southern Seoul (near Gangnam).
What I Like:
- Usually a bit cheaper than KTX
- Trains are just as fast and comfortable
- Convenient if you’re staying in southern Seoul
Heads Up:
- KR Pass is NOT valid on SRT
- If you’re closer to Seoul Station, it might be less convenient
3. ITX (Intercity Train Express)

ITX is a mid-speed train, perfect for shorter regional trips. Two common lines are ITX-Cheongchun (great for Nami Island) and ITX-Saemaeul.
What I Like:
- Affordable and comfortable
- Reserved seats available
- Great for day trips from Seoul
Notes:
- Travel time is longer than KTX or SRT
- Runs less frequently than high-speed trains
4. Mugunghwa Train

Mugunghwa is Korea’s oldest type of passenger train. It’s the slowest, but also the most affordable. It stops at many smaller towns and is great for travelers with flexible schedules.
What I Like:
- Very budget-friendly
- Connects to less touristy destinations
- Feels more local and relaxed
Be Aware:
- Trains are older
- Travel time is the longest among all options
- Some trains may not have assigned seats
Quick Comparison Table
Train | Speed | Price | KR Pass | Best For |
KTX | Fastest | High | ✅ Yes | Long-distance, time-saving |
SRT | Fast | Slightly lower | ❌ No | Budget-friendly from Gangnam |
ITX | Medium | Moderate | ✅ Yes | Day trips, regional destinations |
Mugunghwa | Slowest | Lowest | ✅ Yes | Budget travel, local feel |
So, Which One Should You Take?
Here’s how I usually decide:
- Short on time? Go with KTX or SRT
- Traveling from southern Seoul? Try SRT
- Planning day trips from Seoul? ITX is great
- Want to save money or explore local areas? Mugunghwa works well
Each train offers a different travel experience, so it really depends on your trip goals, budget, and the vibe you’re after.
➡️ Want a complete overview? Check out my full train travel guide here.
Final Thoughts?
Korea’s trains are clean, safe, and very reliable. Whether you’re zipping across the country or enjoying a slower scenic ride, you’re in for a good experience.
My advice? Pick the train that matches your itinerary, and don’t stress too much. You’ll get where you’re going, and maybe even enjoy the journey more than you expected.
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