The first two things every traveler needs immediately after arriving in Korea are:
Internet connection and a transportation card.
Without these, using maps, translation apps, taxis, and public transport becomes difficult. This guide explains exactly what to do at the airport.
1) SIM Card / eSIM / Pocket Wi-Fi
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Which one should you choose?
| Type | Recommended For | Pros | Cons |
|---|---|---|---|
| SIM Card | Works on all phones | Stable, local number | Need to replace your SIM |
| eSIM | Newer smartphones | No swap, instant setup via QR | Not for older phones |
| Pocket Wi-Fi | Families / groups | Multiple devices connect | Must carry & charge device |
Where to buy at the airport?
You can purchase at telecom counters in the arrivals hall:
- SK Telecom
- KT Corporation
- LG U+
Staff are used to assisting foreign travelers.
How much data do you need?
| Trip Length | Recommended Data |
|---|---|
| 3–5 days | 3–5 GB |
| 6–10 days | 8–12 GB |
| Heavy maps / video use | Unlimited data |
Cheapest method
- Buy an eSIM online before departure
- For groups, rent one pocket Wi-Fi device
Airport purchase is convenient but usually more expensive.
2) How to Use the T-money Transportation Card
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T-money is an essential card used for subways, buses, taxis, and even convenience stores.
Where to buy?
- Airport convenience stores
- Subway station vending machines
- Convenience stores (GS25, CU, 7-Eleven)
How to recharge?
- Convenience store counter
- Subway recharge machines
- Usually cash only
Where can you use it?
- Subway and buses
- Some taxis
- Convenience stores
How to use?
Simply tap the card at the gate or bus terminal. The fare is deducted automatically.
Why is it important?
You don’t need to buy tickets each time, and transfer discounts apply automatically.
What To Do Right After Arrival
- Get SIM / eSIM / Wi-Fi first
- Buy a T-money card at a convenience store
- Recharge about 30,000 KRW
- Take the airport train or bus to the city
With these two things ready, getting around Korea becomes simple and stress-free.
