Korea eSIM for winter: ski resorts and snow trips

In short

Our picks. Tap to see today's price at Vacay

Seoul plus Nami Island for 5–7 days, normal useBest Korea 5GB (฿109 (≈ $3.60) for 5 days) or 10GB (฿179 (≈ $5.91))Buy at Vacay →
Lots of snow videos and storiesBest Korea Unlimited 10 Mbps, ฿329 (≈ $10.86) for 5 daysBuy at Vacay →
Several days at a ski resort, full speed on a local SIMSKT Unlimited 4G, ฿559 (≈ $18.45) for 5 days, on Korea's biggest networkBuy at Vacay →
Lots of subway and bus ridesLG U+ Unlimited, with a free T-Money card from 3 daysBuy at Vacay →

New Vacay customers: 10% off

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Prices are from Vacay, the eSIM store GoeSIM partners with, on 21 Oct 2026, in baht. Check the current price before you buy.

Winter trip prices

Plan	5 days	7 days
Best Korea 5GB	฿109≈ $3.60	฿119≈ $3.93
Best Korea 10GB	฿179≈ $5.91	฿189≈ $6.24
Best Korea Unlimited 10 Mbps	฿329≈ $10.86	฿449≈ $14.82
SKT Unlimited 4G	฿559≈ $18.45	฿749≈ $24.72
LG U+ Unlimited 4G (T-Money)	฿689≈ $22.74	฿879≈ $29.01

Best Korea roams on both LG U+ and SKT and picks the stronger one; it can be topped up.

SKT and LG U+ are local SIMs, unlimited and never slowed, but can't be topped up and don't work on iPads.

Every plan starts counting when you land in Korea, so you can install it in Thailand.

More detail in Korea eSIM: SKT, LG U+ or roaming.

Where you're going

Seoul, Nami Island, theme parks: Best Korea 5GB or 10GB covers maps and social media.

Ski resorts in Gangwon (Yongpyong, High1, Vivaldi Park): they're in the mountains and busy at weekends. For several days at full speed, SKT Unlimited; for lighter use, Best Korea's two networks work well. Save the shuttle timetable and resort map before you head up.

Seoraksan and long bus rides: unlimited at 10 Mbps, so streaming on the road doesn't eat your data.

Your phone below zero

Batteries drain fast in the cold. Keep the phone in an inside pocket and carry a power bank.

Touchscreen gloves let you check the map without taking them off.

Screenshot your hotel address and the route back in case the battery runs low or the signal is slow on the mountain.

Google Maps doesn't navigate fully in Korea: download Naver Map or KakaoMap.

Before you buy

Plans must be activated within 60 days of purchase. Going over New Year? See New Year trip eSIMs.

Keep your Thai SIM on for bank codes: see how to get Thai bank OTP codes abroad.

New Vacay customers get 10% off with the code THAF-UCQY.

See every length and buy on the Korea eSIM comparison.

US dollar prices use Vacay's rate (about ฿30.30 per $1, checked 12 Nov 2026), and buy buttons open Vacay in US dollars.

Korea eSIM for tourists in winter: unlimited or by the GB, and which works at ski resorts