🚄 Getting Around Korea: KTX, Subway & Airport Transfers
Incheon Airport to Seoul in 43 min by AREX. KTX high-speed rail, Seoul subway, T-money card, taxis, and the best navigation apps for Korea — with prices and booking tips.
⚡ Key Takeaways
- 🗺️ Download Naver Map — Google Maps doesn't work well in Korea
- 🚆 KTX high-speed rail connects all major cities in 1–3 hours
- 🚇 Seoul subway runs 5:30 AM – midnight, ₩1,400 per ride
- 💳 Get a T-money card — works on all transit + convenience stores
- 🚕 Use Kakao T app for taxis — no language barrier, card payment
Incheon Airport to Seoul
Getting from Incheon International Airport (ICN) to Seoul is easy with multiple options for every budget and schedule.
AREX (Airport Railroad Express):
- Express train — 43 minutes non-stop to Seoul Station. ₩9,500. Departs every 30–40 minutes from 5:20 AM to 10:50 PM. Spacious seats with luggage space.
- All-stop train — 66 minutes to Seoul Station with multiple stops. ₩4,750. Runs every 6–12 minutes. Cheaper and connects to more subway lines along the way.
Airport Limousine Bus:
- ₩16,000–₩18,000. Takes 70–90 minutes depending on traffic and destination.
- Routes go directly to major hotels and districts (Myeongdong, Hongdae, Gangnam, Jamsil).
- Buses are numbered by route: 6001 (Gangnam), 6015 (Myeongdong/Seoul Station), and more. Check your hotel's nearest stop before boarding.
Taxi:
- Regular taxi — ₩65,000–₩80,000 to central Seoul. 60–80 minutes depending on traffic.
- Deluxe taxi (black) — ₩80,000–₩100,000. More spacious, drivers often speak basic English.
- Late-night surcharge (midnight–4 AM) adds 20% to the fare.
Tips:
- Buy a T-money card at the arrival hall convenience stores or kiosks — you'll need it for subways and buses in Seoul.
- If arriving after midnight, take a taxi or the N bus (night bus) — AREX and limousine buses don't run late at night.
- Free Wi-Fi is available throughout the airport, so download Naver Map or KakaoMap before heading out.
KTX High-Speed Rail
The KTX (Korea Train Express) is the fastest way to travel between cities. Running at up to 305 km/h, it connects Seoul to Busan in just 2 hours 15 minutes — versus 4+ hours by bus.
Key routes and travel times from Seoul (Seoul Station or Yongsan):
- Seoul → Busan: 2h 15min (₩59,800)
- Seoul → Daejeon: 50min (₩23,700)
- Seoul → Daegu: 1h 40min (₩43,500)
- Seoul → Gwangju (Songjeong): 1h 35min (₩42,600)
- Seoul → Jeonju: 1h 30min (via KTX-Eum, ₩26,200)
Booking tips:
- Book at letskorail.com (English available) or the Korail Talk app
- Book 1 month in advance for weekends and holidays — popular routes sell out
- Unreserved standing tickets are available on some trains at a 15% discount if seated tickets are sold out
- The KR Pass (₩121,000 for 3 days) is worth it if you're taking 3+ KTX trips
Subway & Metro
Korean cities have excellent subway systems. Seoul's metro is the most extensive with 23 lines covering the entire metropolitan area — you can reach virtually anywhere in the city by subway.
Fare: Base fare is ₩1,400 (T-money) or ₩1,500 (single-use ticket) for the first 10km, then ₩100 per additional 5km. Most trips within Seoul cost ₩1,400–₩1,800.
Operating hours: Generally 5:30 AM to midnight. Last trains vary by line and direction — check the Naver Map or KakaoMap app for exact times. On Friday and Saturday nights, Seoul runs extended late-night service on select lines until 1:00 AM.
Tips for riding:
- All station signs, announcements, and maps are in Korean, English, Chinese, and Japanese
- Priority seats (marked in a different color) are strictly reserved for the elderly, pregnant women, and disabled passengers — never sit there
- Transfer between lines is free within 30 minutes if you use T-money
- Luggage lockers are available at most major stations (₩1,000–₩3,000 per use)
Busan has 6 metro lines, and Daegu and Daejeon each have 2–3 lines. Smaller cities rely on buses.
T-money Card
The T-money card is essential for getting around Korea. It's a rechargeable transit card that works on all subways, buses, and even taxis nationwide — not just Seoul.
Where to get one:
- Convenience stores (CU, GS25, 7-Eleven) — ₩2,500 for the card, then load money separately
- Incheon Airport arrival hall (dedicated kiosks)
- Subway station vending machines
How to load money: Use cash at any convenience store or subway station recharge machine. Minimum load is ₩1,000. Machines accept ₩1,000, ₩5,000, ₩10,000, and ₩50,000 bills.
Why use T-money instead of single tickets:
- ₩100 discount per subway ride (₩1,400 vs ₩1,500)
- Free transfers between subway and bus within 30 minutes
- Works on buses (no need to fumble with cash)
- Accepted at convenience stores and vending machines
Mobile T-money: If your phone supports NFC, you can use the T-money app or add T-money to Samsung Pay. Apple Pay does not support T-money yet.
When leaving Korea, get your remaining balance refunded at any convenience store (minus a ₩500 processing fee).
Buses
City buses are extensive and cheap. In Seoul, buses are color-coded:
- Blue — Long-distance trunk routes across the city
- Green — Feeder routes connecting neighborhoods to subway stations
- Red — Express routes to/from satellite cities (Bundang, Ilsan, Incheon)
- Yellow — Short-loop circular routes within central districts
Fare: ₩1,400 (T-money) for city buses. Express buses (red) cost ₩2,500–₩3,000. Tap your T-money card when boarding AND when getting off — the exit tap calculates transfer discounts.
Intercity/express buses connect all major cities and are often cheaper than KTX:
- Seoul → Busan: ~4h 30min (₩23,000 regular, ₩34,000 premium)
- Seoul → Jeonju: ~2h 40min (₩13,800)
- Seoul → Gangneung: ~2h 30min (₩18,100)
Book intercity buses at kobus.co.kr (Express Bus) or bustago.or.kr (Intercity Bus). Both have English interfaces. Premium buses have wider seats, power outlets, and Wi-Fi.
Taxis & Ride Apps
Taxis are affordable and everywhere. They're a great option for late nights, heavy luggage, or destinations not easily reached by transit.
Fare: Base fare is ₩4,800 for the first 1.6km, then ₩100 per 131m. A 20-minute ride across Seoul typically costs ₩8,000–₩15,000. Late-night surcharge (midnight–4 AM) adds 20%.
Types of taxis:
- Regular (orange/silver) — Standard taxis, most common
- Deluxe (black) — More spacious, ₩7,000 base fare, better for airport runs
- International (orange with globe sticker) — Drivers speak basic English, same fare as regular
Ride-hailing apps:
- Kakao T — Korea's dominant ride app (like Uber). Available in English. Shows estimated fare before booking. Highly recommended.
- Uber — Works in Korea but only connects to licensed taxis (not private drivers). Less coverage than Kakao T.
- i.M Taxi — Alternative app, sometimes faster during peak hours
All taxis accept credit cards and T-money. If hailing on the street, check that the "빈차" (vacant) light is on. Show your destination on KakaoMap or Naver Map — this avoids language barriers.
Domestic Flights
Domestic flights are practical for reaching Jeju Island (the most popular domestic route in the world) and can save time for distant destinations like Busan.
Seoul to Jeju:
- Flight time: ~1 hour 10 minutes
- Frequency: 60+ flights daily from Gimpo Airport (GMP)
- Cost: ₩50,000–₩120,000 one-way depending on season and booking timing
- Airlines: Korean Air, Asiana, Jin Air, Jeju Air, T'way, Air Busan, Air Seoul
Other useful domestic routes:
- Seoul (GMP) → Busan (PUS): 1h (₩55,000–₩90,000) — only 15min faster than KTX door-to-door when you factor in airport time
- Seoul (GMP) → Yeosu (RSU): 1h (₩60,000–₩100,000)
- Busan → Jeju: 55min (₩40,000–₩80,000)
Budget tips: Book low-cost carriers (Jin Air, Jeju Air, T'way) 2–4 weeks in advance. Mid-week flights are significantly cheaper than Friday/Sunday. Gimpo Airport (closer to central Seoul, 25min by subway) is preferred over Incheon for domestic flights.
Taxi Apps & Hailing Tips
Getting a taxi in Korea is easy — either hail one on the street or use an app. Both methods work well, but apps give you fare estimates and avoid language barriers.
Kakao T (카카오 T):
- Korea's dominant ride-hailing app — think of it as Korea's Uber
- English interface available: Settings → Language → English
- Shows estimated fare before you confirm the ride
- Card payment through the app — no cash needed, no awkward fare discussion
- You can set pickup and drop-off locations on the map, which eliminates language barriers
- Supports regular taxis, deluxe (black) taxis, and valet taxis
i.M Taxi (아이엠 택시):
- Second-largest taxi app. Sometimes finds a driver faster than Kakao T during peak hours
- English support is more limited than Kakao T
- Worth having as a backup, especially late at night
Hailing a taxi on the street:
- Look for the lit sign on top of the taxi. If it says "빈차" (vacant) in red/green light, it's available
- Stand at the curb and raise your hand — same as most countries
- At busy locations (Gangnam, Hongdae, Itaewon on weekend nights), taxi queues form at designated stands
- If the driver asks your destination before you get in and refuses, they're not supposed to — but it happens late at night. Try the next taxi or use Kakao T
Fare reference: Base fare is ₩4,800 for the first 1.6 km. A typical 15–20 minute ride across Seoul costs ₩8,000–₩15,000. Late-night surcharge (midnight–4 AM) adds 20%.
💡If a street taxi refuses your ride, use Kakao T instead — app-dispatched drivers can't refuse destinations.
T-money Tips & Tricks
The T-money card section above covers the basics. Here are advanced tips to get the most out of your card.
Charging (reloading) your T-money:
- Convenience stores — Walk up to the counter and say "T-money 충전" (chunggeon) or just hand the card with your cash. They'll load the exact amount you give them.
- Subway station machines — Available at every station. Machines have English menus. Insert your card, then insert bills. Accepts ₩1,000, ₩5,000, ₩10,000, and ₩50,000 bills.
- Check your balance — Tap your card on any subway gate to see the remaining balance on the screen. Or check at convenience store registers.
Getting a refund on unused balance:
- Visit any convenience store (CU, GS25, 7-Eleven) and ask for a T-money refund ("T-money 환불")
- Refunds up to ₩20,000 can be processed at the store. A ₩500 processing fee is deducted.
- If your balance exceeds ₩20,000, visit a T-money Town counter at major subway stations (Seoul Station, Myeongdong, etc.)
Mobile T-money:
- Android phones with NFC: Download the T-money app (or use Samsung Pay T-money). Charge via Korean bank account or credit card. Works exactly like a physical card — tap your phone on the reader.
- iPhone: Apple Pay does not support T-money. iPhone users must use a physical T-money card for transit. There is no workaround.
One card, everywhere: T-money works on all public transit nationwide — Seoul, Busan, Daegu, Gwangju, Daejeon, and intercity buses. It also works at convenience stores, vending machines, and some taxis. One card for your entire Korea trip.
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