South Korea
Seoul eSIM plans
Incheon is an hour from the centre by the AREX train or airport limousine bus, and the eSIM connects in the arrivals hall, before the long walk to the SIM counters. Seoul runs on 5G from SK Telecom, KT and LG U+ almost everywhere, including every subway line.
The cheapest Seoul eSIM is $1.10 for 500 MB · 7 days; unlimited data costs $1.10 a day (the first 500 MB each day at high speed, then 512 Kbps under the fair use policy). Plans run on SKTelecom and LG Uplus, with 5G. Prices checked 9 November 2026.
Cheapest South Korea plans for Seoul
Any South Korea plan works in Seoul. See all South Korea plans →
Prices checked 9 November 2026.
- Unlimited dataFair use policyAfter 500 MB each dayYou get 500 MB at high speed each day. After that, the fair use policy slows data to 512 Kbps until the next day, so you are never cut off.Validity1–30 daysNetwork5GTop-upNot availableOperatorsSKTelecom +1 $1.10per dayView plan
- 500 MB · 7 daysHigh speed500 MBYou get 500 MB at high speed to use within 7 days. When it runs out, you can top up to keep going.Validity7 daysNetwork5GTop-upUp to 9 timesOperatorsSKTelecom +1 $1.10View plan
- 1 GB · 7 daysHigh speed1 GBYou get 1 GB at high speed to use within 7 days. When it runs out, you can top up to keep going.Validity7 daysNetwork5GTop-upUp to 9 timesOperatorsSKTelecom +1 $1.93View plan
- Unlimited dataFair use policyAfter 1 GB each dayYou get 1 GB at high speed each day. After that, the fair use policy slows data to 1 Mbps until the next day, so you are never cut off.Validity1–30 daysNetwork5GTop-upUp to 9 timesOperatorsSKTelecom +1 $2.20per dayView plan
- Unlimited dataFair use policyAfter 1 GB each dayYou get 1 GB at high speed each day. After that, the fair use policy slows data to 512 Kbps until the next day, so you are never cut off.Validity1–30 daysNetwork5GTop-upUp to 9 timesOperatorsSKTelecom +1 $2.20per dayView plan
- 2 GB · 15 daysHigh speed2 GBYou get 2 GB at high speed to use within 15 days. When it runs out, you can top up to keep going.Validity15 daysNetwork5GTop-upUp to 9 timesOperatorsSKTelecom +1 $3.30View plan
Where you will use it
Around Seoul
Full coverage in Myeongdong, Hongdae, Gangnam, Itaewon, Insadong on every plan.
- Install Naver Map or KakaoMap before you fly; Google Maps does not give walking or driving directions in Korea.
- Add a T-money card to your phone or buy one at any convenience store for the subway and buses.
- Kakao T is the taxi app; it works with a foreign card and your home number for sign-up.
Good to know
Seoul eSIM questions
How much does an eSIM for Seoul cost?
Plans start at $1.10 for 500 MB · 7 days. Unlimited daily data costs $1.10 a day (the first 500 MB each day at high speed, then 512 Kbps under the fair use policy). Prices are in US dollars and include everything: no roaming fees, no subscription.
Does the eSIM work on the Seoul subway and the KTX?
Yes. All Seoul subway lines have 5G in the tunnels, and the KTX line to Busan is covered end to end apart from a few long tunnels.
Can I use Naver and Kakao apps without a Korean number?
Maps, translation and transit work with an email sign-up. Some payment and delivery features ask for a Korean number; for those use your hotel or a Korean friend, or skip them.
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