Phone internet in Korea

Compare eSIM, SIM, a pocket Wi-Fi router and free Wi-Fi. Each row shows the date we checked and its source.

Ways to get online

Ways to get internet on your phone in Korea
Option	Price	Data	Korean number	Pickup	Passport
eSIMeSIM with data, calls and textsSK telecom	LTE 6,500 KRW (1 day) to 71,500 KRW (30 days); 5G from 9,500 KRW (1 day)	Unlimited (LTE up to 100 Mbps, 5G up to 200 Mbps)	Free incoming calls and texts; outgoing after you top up	Online: scan the QR code (within 180 days of buying)	Foreign passport only; verify online 08:00–22:00 after immigration, or at the airport roaming center
Details and sources (8) SK telecom LTE passes: 1 day 6,500 KRW, 2 days 12,000 KRW, 3 to 90 days from 18,000 KRW. 5G passes: 1 day 9,500 KRW, 2 days 15,000 KRW, 3 to 90 days from 25,000 KRW. Checked 2026-10-15 · SK telecom roaming: plans for visitors LTE eSIM with calls and texts: 3 days 18,000 KRW, 5 days 27,500 KRW, 7 days 35,000 KRW, 10 days 38,500 KRW, 15 days 55,000 KRW, 30 days 71,500 KRW. Checked 2026-10-15 · SK telecom roaming: LTE eSIM LTE data runs at up to 100 Mbps with no data cap. 5G data is unlimited at up to 200 Mbps, with tethering limited to 1 GB a day. Checked 2026-10-15 · SK telecom roaming: LTE eSIM Incoming calls and texts are free. Outgoing calls (4.4 KRW a second) and texts (33 KRW each) work after you top up your balance. Checked 2026-10-15 · SK telecom roaming: LTE eSIM You cannot receive verification or payment texts (such as sign-in codes) on this plan. Checked 2026-10-15 · SK telecom roaming: LTE eSIM For foreign visitors staying up to 90 days; Korean passport holders cannot use it. Data works before passport verification. Checked 2026-10-15 · SK telecom roaming: LTE eSIM Verify your passport online from 08:00 to 22:00 after immigration; outside those hours, show your passport at the airport roaming center. Checked 2026-10-15 · SK telecom roaming: LTE eSIM Scan the eSIM QR code within 180 days of buying. Cards issued in Korea are not accepted, and refunds end 30 days after payment. Checked 2026-10-15 · SK telecom roaming: LTE eSIM
eSIMData eSIM (data only)KT	₩6,500 (1 day) to ₩143,000 (90 days), VAT included	After 11 GB in a day, unlimited at 5 Mbps	No calls or texts	Online or at a KT airport roaming center	Foreign visitors only
Details and sources (4) KT's prepaid plans are only for foreigners visiting Korea. Checked 2026-10-15 · KT roaming: eSIM Data eSIM: 1 day ₩6,500, 3 days ₩18,000, 5 days ₩27,500, 7 days ₩35,000, 10 days ₩38,500, 15 days ₩55,000, 30 days ₩71,500, 90 days ₩143,000, VAT included. Checked 2026-10-15 · KT roaming: eSIM After 11 GB of data in a day, data stays unlimited at 5 Mbps. Checked 2026-10-15 · KT roaming: eSIM The data eSIM is sold online and at the airport. eSIMs cannot be cancelled or refunded once bought, and Korean-issued cards are not accepted. Checked 2026-10-15 · KT roaming: eSIM
eSIMeSIM with calls and textsKT	₩23,500 (3 days) to ₩148,500 (90 days), VAT included	After 11 GB in a day, unlimited at 5 Mbps	Korean 010 number, about 60 minutes of calls, free incoming calls and texts	KT airport roaming center only	Identity check (Entry Check) at the KT airport roaming center
Details and sources (3) eSIM with data, calls and texts: 3 days ₩23,500, 5 days ₩33,000, 7 days ₩40,500, 10 days ₩44,000, 15 days ₩60,500, 30 days ₩77,000, 90 days ₩148,500, with about 60 minutes of calls. Checked 2026-10-15 · KT roaming: eSIM All KT mobile numbers start with 010. Checked 2026-10-15 · KT roaming: eSIM This eSIM is sold only at a KT roaming center at the airport, 1 voice SIM per person. Calls and texts start after the identity check (Entry Check) there. Checked 2026-10-15 · KT roaming: eSIM
SIMSIM cardKT	Same prices as the KT eSIM	After 11 GB in a day, unlimited at 5 Mbps	Korean 010 number with the calls-and-texts plan	Book and pay online, pick up at your arrival airport's KT roaming center	Identity check at pickup
Details and sources (3) Reserve and pay in advance, then pick up your SIM at the roaming center of your arrival airport after an identity check. Checked 2026-10-15 · KT roaming: SIM card The SIM card has the same price table as the KT eSIM. Checked 2026-10-15 · KT roaming: SIM card After 11 GB of data in a day, data stays unlimited at 5 Mbps; the 11 GB resets every midnight. Checked 2026-10-15 · KT roaming: SIM card
RouterPocket Wi-Fi routerSK telecom, KT	4,400 KRW a day; 55,000 KRW for 30 days	KT: unlimited at 20 Mbps	No	Airport roaming center	KT: passport and a credit card in your name for the deposit
Details and sources (3) SK telecom rents Wi-Fi routers from 4,400 KRW for 1 day; a 30-day rental booked online is 55,000 KRW. Checked 2026-10-15 · SK telecom roaming: Wi-Fi router rental KT rents routers for 4,400 KRW a day or 55,000 KRW a month, VAT included, with unlimited data at 20 Mbps. Past 30 days, each extra day is 3,300 KRW, paid on return. Checked 2026-10-15 · KT roaming: Wi-Fi router rental To rent from KT you need your passport and a credit card in your name for the deposit, valid for more than 3 more months. Debit cards are not accepted. Up to 4 routers per person. Checked 2026-10-15 · KT roaming: what you need to rent a router
Wi-FiFree public Wi-FiSeoul city, Korean government	Free	Only where there is a hotspot	No	Join SEOUL_Secure (ID and password: seoul) or Public WiFi Free	No
Details and sources (4) Seoul's free Wi-Fi is on main streets, traditional markets, parks, bus stops, tourist sights, cultural facilities and city buses. Checked 2026-10-15 · Seoul Metropolitan Government: free Wi-Fi SEOUL_Secure Choose SEOUL_Secure or SEOUL_Secure_(3) and enter seoul as both the ID and password; after that it connects automatically anywhere. Help line 02-2133-0022. Checked 2026-10-15 · Seoul Metropolitan Government: free Wi-Fi SEOUL_Secure Public WiFi Free is the government's free Wi-Fi in community centers, traditional markets, city buses and other public places. Avoid entering personal or banking details on it. Checked 2026-10-15 · Public WiFi Free (Ministry of Science and ICT) Free public Wi-Fi is available in most airports, subway stations, train stations and some bus stops. Checked 2026-10-15 · Korea Tourism Organization: phones and internet

Will an eSIM work on your phone?

iPhone: Settings > Cellular > Add eSIM. Android: Settings > Connections > SIM manager > Add eSIM.
Checked 2026-10-15 · SK telecom roaming: LTE eSIM
Dial *#06# in your phone app. If an eSIM IMEI or an EID starting with 89 appears, your phone can use an eSIM.
Checked 2026-10-15 · SK telecom roaming: LTE eSIM
A locked phone cannot use the eSIM even if it scans the QR code.
Checked 2026-10-15 · SK telecom roaming: LTE eSIM
Ask your current carrier to make sure your phone's country lock is off.
Checked 2026-10-15 · KT roaming: eSIM

Airport roaming centers

Incheon Terminal 1

SK telecom · 24 hours
1st floor, opposite Gate 13
Checked 2026-10-15 · SK telecom roaming: airport roaming centers
SK telecom · 06:00–22:00
1st floor, opposite Gate 2
Checked 2026-10-15 · SK telecom roaming: airport roaming centers
KT · 06:00–22:00
Arrival floor, near Hall A (opposite Exit 2)
Checked 2026-10-15 · KT roaming: roaming centers
KT · 24 hours
Arrival floor, near Hall F (opposite Exit 13)
Checked 2026-10-15 · KT roaming: roaming centers

Incheon Terminal 2

SK telecom · 24 hours
1st floor, opposite Exit 7
Checked 2026-10-15 · SK telecom roaming: airport roaming centers
KT · 24 hours
Arrival floor, near Hall A (opposite Exit 4)
Checked 2026-10-15 · KT roaming: roaming centers

Gimpo Airport

KT · 06:30–23:00
1st floor, beside Exit 1
Checked 2026-10-15 · KT roaming: roaming centers

Good to know

Incheon, Gimpo, Gimhae and Jeju airports have roaming centers run by Korean carriers.
Checked 2026-10-15 · Korea Tourism Organization: phones and internet
SK telecom SIM cards replace the physical SIM in your phone and must be picked up at an airport roaming center, up to 5 per person.
Checked 2026-10-15 · SK telecom roaming: SIM card
CU, GS25, 7-Eleven and Emart24 convenience stores sell SIM cards, but stock varies by store.
Checked 2026-10-15 · Korea Tourism Organization: phones and internet
Check that your phone works with eSIMs before you buy one online, then scan the QR code you get to set it up.
Checked 2026-10-15 · Korea Tourism Organization: phones and internet

Sources

SK telecom roaming: plans for visitors Checked 2026-10-15
SK telecom roaming: LTE eSIM Checked 2026-10-15
KT roaming: eSIM Checked 2026-10-15
KT roaming: SIM card Checked 2026-10-15
SK telecom roaming: Wi-Fi router rental Checked 2026-10-15
KT roaming: Wi-Fi router rental Checked 2026-10-15
KT roaming: what you need to rent a router Checked 2026-10-15
Seoul Metropolitan Government: free Wi-Fi SEOUL_Secure Checked 2026-10-15
Public WiFi Free (Ministry of Science and ICT) Checked 2026-10-15
Korea Tourism Organization: phones and internet Checked 2026-10-15
SK telecom roaming: airport roaming centers Checked 2026-10-15
KT roaming: roaming centers Checked 2026-10-15
SK telecom roaming: SIM card Checked 2026-10-15