How to Survive Arrival in Seoul: Transportation, SIM Cards & Subway Hacks

You’ve landed at Incheon International Airport. You’re sleep-deprived, dehydrated, and possibly questioning your life decisions. Congratulations, you’ve made it to Seoul. Now what?

This isn’t a city that rolls out a red carpet for tourists. It rolls out a T-money card and a maze of subway exits. But once you understand a few core systems, Seoul is one of the easiest megacities in the world to navigate.

This guide walks you through:

• Getting from the airport without getting scammed
• Buying a SIM card that won’t throttle your data
• Mastering Seoul’s subway, or at least faking it
• Avoiding rookie mistakes that make locals sigh through their masks

Step One: Escape the Airport

You’ve Got Two Airports, But You’ll Probably Land at Incheon (ICN)

Incheon is Seoul’s main international hub. Clean, efficient, and big enough to give your Apple Watch a meltdown. Immigration can take 10 minutes or 90, depending on how many people showed up with K-drama dreams that day.

Note: Incheon is outside of Seoul. It’s even outside of Incheon. You’ll still have to get into the city itself. Check the time tables below.

If you’re flying in domestically or from nearby countries, you might land at Gimpo Airport (actually not in Gimpo), which is closer to the city. This guide assumes you’re at Incheon, because that’s where the chaos begins.

The Best Ways to Get to Seoul from Incheon Airport

SIM Cards, eSIMs, and Wi-Fi

Do you actually need a SIM card? In short, I recommend it.

South Korea is technologically advanced but also somewhat isolated. It runs on homegrown apps and banking systems built without much thought for non-Koreans using them. As a result, a lot of apps, like the popular taxi app Kakao T, require a Korean phone number to register. That’s where a SIM card saves you a lot of headaches.

SIM Card Options (Airport or Preorder)

• KT, SKT, and LG U+ all offer tourist SIMs
• Airport kiosks are open late, but book online through Klook or Trazy to skip the point-and-nod routine
• Prices:
  • 5 days: ₩27,500
  • 10 days: ₩38,500
  • 30 days: ₩60,000
• Unlimited data, but some throttle speeds after 5GB/day. Tethering may be blocked on cheaper SIMs.

eSIM

• Airalo, Ubigi, and Nomad offer instant eSIMs for Korea
• Slightly cheaper, no physical swap needed
• Downside: no Korean number means no Kakao T, some bank apps, and similar services

Pocket Wi-Fi

• Shareable, good for groups
• Must be returned to the airport
• Costs ₩3,000–₩8,000/day
• One more device to carry and keep track of

Money, Cards, and the T-Money You Actually Need

Currency

• Won (KRW), current exchange is roughly ₩1,000 to $0.75 USD
• ATMs are everywhere, but not all accept foreign cards
  • Look for “Global ATM” at GS25, 7-Eleven, or Shinhan/KB branches

Cards

• Visa and Mastercard are widely accepted
• Amex acceptance is spotty
• Small restaurants or market stalls may be cash only

T-Money Card (Don’t Skip This)

This is your public transit wand.

• Buy it at any convenience store (₩3,000)
• Load cash onto it, no ID required
  • Important: only cash is accepted. This is one of the few instances where Korea won’t take a credit card.
• Use it on subways, buses, taxis, vending machines, even some cafés

You cannot use Apple Pay or tap-to-pay credit cards for transit here. This isn’t Tokyo. Don’t hold up the line.

Seoul’s Subway: Complicated, But You Can Handle It

The Basics

• 23 lines, over 700 stations
• Color-coded and multilingual, English, Korean, Mandarin, Japanese
• Incredibly safe and clean
• Trains arrive every 2–4 minutes
• It’s genuinely easier to use than most subway systems in the world. Give it a chance.

The Confusion

• Each station has multiple exits, numbered in a way that feels arbitrary
• You don’t just exit a station, you exit through exit 6, turn right, pass a Paris Baguette, and enter a side alley

Must-Have Apps

• Naver Map (iOS, Android): the Google Maps replacement, with real-time navigation and detailed subway exits
• KakaoMap (iOS, Android): also good, pick your poison
• Subway Korea (iOS, Android): specific to subways, with platform info and train schedules

Subway Etiquette

• Don’t talk on your phone or speak loudly
• Priority seats are sacred. Sit there and an ajumma will let you know about it.
• Wait for people to get off before you board
• Don’t eat or drink, especially anything with a strong smell

Taxis and Ride Apps

Hailing Taxis

• White, silver, or orange cars
• Hail with your palm down, a “come hither” motion rather than a wave
• Base fare ₩4,800
• Good luck getting one in the rain or after 10 p.m.

Safer Bet

• Kakao T (iOS, Android), Korea’s version of Uber
  • Works best with a Korean SIM and phone number
  • Pre-set the destination, no negotiating
  • Can take a while during peak hours
• International Taxi (call 1644-2255)
  • English-speaking drivers, more expensive but reliable
  • Best for airport transfers or long hauls

Final Checklist

✅ Get a T-money card
✅ Download Naver Map and Papago
✅ Pre-order your SIM or eSIM
✅ Book airport transport ahead of time
✅ Don’t trust Google Maps here
✅ Don’t schedule five neighborhoods in one day
✅ Know your hotel’s nearest subway exit, or prepare to wander

Coming Up Next

What to Actually Do in Seoul, forget the top 10 lists that include shopping malls. We’re talking grilled pork in smoky back alleys, industrial cocktail bars with no signs, and neighborhoods where the locals actually hang out.