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Layover guideSeoul · ICN · GMP

Staying connected in Seoul

Roaming centres at Incheon and Gimpo sell SIMs and rent Wi-Fi eggs, convenience stores sell SIMs too, and free public Wi-Fi is widespread.

Tony Webster / Wikimedia Commons · CC BY 2.0
All of Seoul

Korea's major international airports, Incheon and Gimpo among them, have roaming centres run by the Korean networks. Besides roaming, they sell SIM cards and rent Wi-Fi eggs and smartphones.

The networks are KT, SK Telecom and LG U+, and each publishes its own roaming centre fees and locations.

A physical USIM card can also be bought at select convenience stores and retailers, or online in advance for pickup at the airport. CU, GS25, 7-Eleven and Emart24 sell them, but stock varies by branch.

Korean providers also sell eSIMs, bought online and set up with a QR code. Check that your phone supports eSIM first.

Free public Wi-Fi covers most public places, including airports, subway stations, train stations and some bus stops.

  1. Korea Tourism Organization (VisitKorea): Electricity & Communications · checked 2026-09-28

The rest of Seoul

The whole guide
Getting out of the airportExpress train, 43 minutes from Terminal 1 and 51 from Terminal 2. The last express back leaves Seoul Station at 23:00, and the last airport-bound all-stop at 23:40.Ride-hailingMetered taxis from numbered ranks outside arrivals, with surcharges that are published rather than negotiated.Local laws that catch crew outCannabis sits with opium and cocaine on the restricted list, food is a quarantine matter, and cash over ten thousand dollars is declarable in both directions.WeatherJanuary in Seoul runs between minus 5.5 and 2.1 degrees, August between 22.9 and 30, and the rain arrives in one concentrated month.Eating near the crew hotelsWater and side-dish refills are free, every table has a call button, and tips are not expected.What to buyDuty-free bought inside Korea counts against your 800 dollar allowance, and the VAT refund starts at a kiosk before you check your bags.TippingTaxis do not require a tip, and the extras on the meter are published percentages rather than anything discretionary.