Light use
Multi-network
3 GB · 7 days
$5.70
Sharing your location, checking the metro, posting a few photos. The cheapest way to be online.
Coco Lin · Korea eSIM storefront
Chuseok in Korea, online when you land
24 September to 26 September is the busiest week of the Korean year. Install the eSIM before you fly, switch data on at arrivals and walk straight past the counter queue. Checkout here, USDT or card.
From $5.22
What most students take
10 GB · 7d $9.21
Airalo 10 GB · 7d $18.00 49% less per GB than Airalo up to 66% less
See every plan · Prices checked July 9, 2026 · 26 plans in the full price table
The honest part: counters are open, the holiday is the problem
Incheon and Gimpo sell SIMs, and the big travel eSIM apps work in Korea too. No pretending otherwise.
What changes is the timing. Chuseok is one of Korea's two biggest holidays: from 24 September to 26 September the whole country is on the move, airports and stations are at their fullest, queues run longer than usual, and a lot of neighbourhood shops and carrier stores shut for the holiday, so sorting a SIM once you leave the airport takes longer.
The simple fix: buy and install on home Wi-Fi, then turn data on when you land. Navigation, translation, KakaoTalk and ticket apps all work from the moment you clear customs.
Where the data actually goes during Chuseok
1
The arrivals hall
Calling a taxi, finding your pickup, checking the airport express. Data on and you are moving.
2
Packed transport
Rerouted subways, sold-out KTX, long taxi queues. Live maps earn their keep this week.
3
Closed shutters
Small shops and carrier stores may be shut. Check opening hours before you walk there.
4
Calling home
Video, photos, voice notes. Size the plan a little generously so it does not stall.
Which one? Four ways people use it, all priced from the store table
Same plan, more days costs more, so start from how long you need to stay online. Sorted by use case below, and you can still switch at checkout.
Most picked
Multi-network
10 GB · 7 days
$9.21
Airalo 10 GB · 7d $18.00 49% less per GB
A normal trip: navigation, translation, restaurant apps, uploads. What most travellers take.
Fixed daily
Multi-network
1 GB/day · 7 days
$7.30
Airalo 10 GB · 7d $18.00 42% less per GB
The allowance resets every day and slows down instead of cutting off. Good if you hotspot daily.
Best per GB
Multi-network
20 GB · 7 days
$15.27
Airalo 10 GB · 7d $18.00 58% less per GB
The lowest price per GB here. Streaming, video calls and full-size photos all fit.
Every plan (cheapest first)
Same store table, sorted by price. Cheapest at the top, no hidden markup.
| Plan | Validity | Total data | Per GB | Price | |
|---|---|---|---|---|---|
| 1 GB Multi-network | 7 days | 1 GB | $5.22 | $5.22 | Order |
| 1 GB Multi-network | 15 days | 1 GB | $5.70 | $5.70 | Order |
| 1 GB Multi-network | 30 days | 1 GB | $6.18 | $6.18 | Order |
| 500 MB/day Multi-network | 7 days | 3.4 GB | $1.85 | $6.34 | Order |
| 3 GB Multi-network | 15 days | 3 GB | $2.11 | $6.34 | Order |
| 3 GB Multi-network | 30 days | 3 GB | $2.27 | $6.82 | Order |
| 5 GB Multi-network | 7 days | 5 GB | $1.40 | $6.98 22% less per GB | Order |
| 5 GB Multi-network | 15 days | 5 GB | $1.52 | $7.61 | Order |
| 5 GB Multi-network | 30 days | 5 GB | $1.62 | $8.09 | Order |
| 500 MB/day Multi-network | 15 days | 7.3 GB | $1.30 | $9.53 10% less per GB | Order |
| 10 GB Multi-network | 15 days | 10 GB | $1.02 | $10.17 30% less per GB | Order |
| 2 GB/day Multi-network | 7 days | 14 GB | $0.75 | $10.48 58% less per GB | Order |
| 10 GB Multi-network | 30 days | 10 GB | $1.08 | $10.80 | Order |
| 8 GB Multi-network | 7 days | 8 GB | $1.43 | $11.44 21% less per GB | Order |
| 1 GB/day Multi-network | 15 days | 15 GB | $0.78 | $11.76 46% less per GB | Order |
| 8 GB Multi-network | 15 days | 8 GB | $1.59 | $12.72 | Order |
| 3 GB/day Multi-network | 7 days | 21 GB | $0.62 | $13.04 66% less per GB | Order |
| 15 GB Multi-network | 7 days | 15 GB | $0.91 | $13.67 49% less per GB | Order |
| 1.5 GB/day Multi-network | 7 days | 10.5 GB | $1.34 | $14.09 25% less per GB | Order |
| 8 GB Multi-network | 30 days | 8 GB | $1.77 | $14.15 | Order |
| 15 GB Multi-network | 15 days | 15 GB | $0.99 | $14.79 32% less per GB | Order |
| 15 GB Multi-network | 30 days | 15 GB | $1.03 | $15.43 | Order |
Why you can buy here safely
No slogans. Four things you can verify yourself, right now, on this page.
1
Check the prices yourself
All 26 plans are published on this page, and the Airalo prices were checked on 2026-09-06. Where a rival is cheaper, the table says so.
2
A human answers
The chat bubble is me, not a bot. English, Chinese or Japanese, and asking without buying is fine.
3
Honest before the sale
Airports do sell tourist SIMs and this is not a year-long 090 plan. Both are written on this page. What I sell is the bridge until your residence card has an address.
4
Ordering charges nothing
You order, the payment link arrives by email, you pay only if you are happy. The QR follows to the same inbox.
Buyer reviews
Nothing here yet
This shop is new and has not collected buyer reviews yet. Once the first students land and the data actually works, I will publish their own words here (screenshot, note comment or email reply). I am not going to write them myself. In the meantime, open the chat and test me with a few questions.
How I would choose
Maps and messaging only? 3 GB for 7 days at $5.70 covers a week. Posting photos, hotspotting, recording video? Most people take 10 GB for 7 days at $9.21. Heavy use goes to the best price per GB here, 20 GB for 7 days at $15.27. All of it straight from the store table.
Not sure? Tap the chat bubble in the corner and ask me directly. 100% human, English or Chinese.
Three steps before you fly
- 1
Order on home Wi-Fi
Pick days and data, check out here. The QR arrives by email.
- 2
Scan it into your phone
Settings, add cellular plan, scan. Name the line so it does not mix with your home SIM.
- 3
Turn data on when you land
Keep it off in the air. Validity starts at activation, not at purchase.
Full walkthrough: Install eSIM before you fly
Chuseok connectivity FAQ
Can I still buy a SIM on arrival during Chuseok?
Yes. The counters at Incheon and Gimpo generally stay open, and I am not going to pretend otherwise. The catch is timing: Chuseok is the busiest travel window of the Korean year, so queues run long, and plenty of neighbourhood shops and carrier stores close for the holiday, which makes buying outside the airport slower. Installing before you fly skips that entirely.
When exactly is Chuseok 2026?
The public holiday runs 24 September to 26 September 2026, with Chuseok itself on 25 September. The whole country travels to family homes, so expect packed KTX trains, busy expressways and full airports. Many restaurants and small shops close, while palaces and the big attractions usually stay open. Keep the schedule loose and keep maps and translation working.
How much data does a Chuseok trip need?
Maps, translation, KakaoTalk and a few photo uploads run comfortably on 3 to 5 GB for a week. If you post video, hotspot a laptop or stream, go to 10 GB or more. 10 GB for 7 days is $9.21 and it is the one most people take. Start small if you are unsure and top up later.
How do I pay, and when am I charged?
Order on this site with USDT or card. Placing the order charges nothing: the payment link comes by email, and once payment is confirmed the eSIM QR follows to the same inbox. Not sure which plan? Tap the chat bubble, a real human answers.
How do I install it before flying?
Buy and scan the QR on home Wi-Fi, then leave the line switched off. Validity starts at activation, so you do not burn days in the air. Turn Korean data on after you clear customs.
Ten minutes before you leave for the airport
10 GB for 7 days at $9.21, or the best per GB, 20 GB for 7 days at $15.27. Both buttons go to the checkout on this site.
Buy your Korea eSIM on cocolintravel.com. Prices as checked 2026-07-09.