eSIM, SIM or roaming: mobile data for a concert trip to Korea

• Mobile tickets: NOL World mobile tickets only show in its app or mobile web, and you enter with the QR code. Ticketlink Smart Tickets are a barcode on your phone scanned at the gate (not offered for every show).
• Passport verification: NOL World warns that a low-spec device or an unstable connection can stop the captured data saving correctly.
• Checking the last train, maps and taxi apps after the show.

Networks get busy around big shows. SK telecom said mobile data around a large K-pop concert at Gwanghwamun in March 2026 was about double the previous weekend's, and brought in mobile cell sites. Open your ticket before you reach the venue (whether a screenshot is accepted depends on the show and site).

Prices are as listed on the carriers' official sites on 15 October 2026.

KT

Data-only eSIM: 6,500 won for 1 day, 18,000 for 3, 27,500 for 5, 35,000 for 7 (VAT included), sold online and at the airport. Past 11 GB a day you keep going at 5 Mbps. The eSIM with a 010 number (from 23,500 won for 3 days) is sold only at KT's airport roaming centers, and calls and texts work after an identity check there.

SK telecom

LTE 1-day pass 6,500 won (data only), 2-day pass 12,000 won, 3 days and up from 18,000 won. Passes of two days or more include a Korean number; incoming calls and texts work after passport verification. You buy the eSIM online and install it from a QR code sent by email. Korean-issued cards are not accepted.

LG U+

Its airport counters sell prepaid SIMs, eSIMs and routers, but its website blocked our checks, so we couldn't confirm prices.

Both KT and SK telecom state that tourist numbers can't receive Korean identity-verification texts. A Korean number won't unlock the Korean versions of the ticket sites.

Roaming needs almost no setup and keeps your own number. Daily passes from Japanese carriers cost about ¥980 per 24 hours (docomo, SoftBank; au is ¥800 with advance booking or ¥1,200 without, and a flat ¥980 from 1 February 2027; Rakuten Mobile includes 2 GB a month free in Korea). Carriers elsewhere sell similar day passes; check your own plan before you fly.

A pocket Wi-Fi can be shared by a group. KT charges 4,400 won a day (55,000 won for 30 days) and needs your passport and a credit card in your name (no debit cards); SK telecom starts at 4,400 won a day.

Free Wi-Fi is available in subway stations, major bus stops and cafés, according to the Korea Tourism Organization, and the national public network is called "Public WiFi Free". Connection time can be limited and the KTO warns coverage is patchy in some regions, so don't rely on it alone on show day.

• Terminal 1: KT, LG U+ and SK telecom 24-hour roaming centers on the 1F arrivals floor near Arrival Hall F (prepaid SIM, eSIM, Wi-Fi router).
• Terminal 2: KT and LG U+ 24-hour counters near Exit 4 on 1F, SK telecom near Exit 7.
• T1 also has counters for all three near Arrival Hall A, open 06:00–22:00.

For the trip on from the airport, see Incheon Airport to the main venues.