South Korea
Busan eSIM plans
Gimhae airport is a light-rail ride from the city, and most people come from Seoul on the KTX in under three hours; a South Korea plan is connected at either end and on the train between them. Busan is beaches, fish markets and hillside villages, spread along the coast, so you will lean on the metro map and a translation app all day.
The cheapest Busan 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 Busan
Any South Korea plan works in Busan. 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 Busan
Full coverage in Haeundae, Gwangalli, Seomyeon, Nampo-dong, Gamcheon on every plan.
- Naver Map or Kakao Map, not Google: they show the metro, bus arrivals and walking routes correctly in Korea.
- A T-money card from any convenience store covers the metro, buses and taxis; the city tour bus is a good first-day loop.
- Kakao T is the taxi app; drivers rarely speak English, so put the destination in Korean from the map.
Good to know
Busan eSIM questions
How much does an eSIM for Busan 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 KTX from Seoul to Busan?
Yes. SK Telecom, KT and LG U+ all cover the KTX line, including the long tunnels, so you can work or stream for the whole journey.
Do I need a Korean phone number for apps in Busan?
Not for maps, taxis, translation or payments by card. A few delivery and booking apps ask for a Korean number; for those, order at the counter or through your hotel instead.
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