Does data work well on the other islands, such as St. John and St. Croix?

In the main towns and tourist spots of St. John and St. Croix, AT&T 4G LTE connects fairly reliably. However, in remote places with almost no people, such as deep in the hills of the St. John national park or on isolated beaches, the signal can be weak. Downloading offline maps before you set off on an island trek or snorkelling tour makes things even easier.

The United States Virgin Islands are US territory, so doesn't Korean roaming work there too?

The United States Virgin Islands are US territory, but many Korean carriers classify them as a separate roaming zone from the US mainland. As a result, roaming charges can come out much higher than expected. A Yeohaengyusim eSIM can be arranged in advance at a reasonable flat rate, so you can use data as much as you like without worrying about the bill.

Does data connect on a ferry or yacht?

On the waters near the main islands, such as the ferry route between St. Thomas and St. John, the signal from base stations on land often reaches you and the 4G LTE connection holds. However, far out at sea away from the islands the signal can drop, so we recommend saving important information offline in advance.

Can I use a Korean plug directly in the sockets in the United States Virgin Islands?

The United States Virgin Islands use the same Type A/B sockets as the US mainland. Korea's Type C plug (two round pins) is not compatible, so an adapter is essential. Be sure to pack a multi-adapter before departure. The voltage is 110V, which differs from Korea (220V), so it is also important to check in advance that your devices support automatic 100–240V conversion.

Does eSIM work in United States Virgin Islands?

United States Virgin Islands supports eSIM, and plans start from ₩5,559. Install it with the QR code you receive after buying, then just turn on data roaming after you arrive and you are connected straight away. There is no need to swap your SIM.

Which carrier network does a United States Virgin Islands eSIM use?

In United States Virgin Islands it connects automatically to local carrier networks such as AT&T · T-Mobile · Liberty Mobile · Viya (4G/LTE, 5G where supported). Population coverage is about 88%. It picks the network with the strongest signal automatically, so there is nothing to set up.

Can I keep using my Korean number while travelling in United States Virgin Islands?

Yes. The eSIM works as a data-only second line, so your Korean SIM and number stay as they are. Use the Yeohaengyusim eSIM for data only, and keep receiving calls, texts and KakaoTalk on your Korean number.

Can I add to or extend my United States Virgin Islands eSIM plan?

Yes. When you use up your data or the plan period ends, you can buy a new plan at any time. Keep using the eSIM profile you already installed; there is no need to install it again, so you carry on without interruption.

Can I use tethering (hotspot) in United States Virgin Islands?

Yes. In United States Virgin Islands you can share your eSIM data with other devices such as a laptop or tablet by tethering (hotspot). Shared data also comes out of your plan allowance, so if you tether a lot we recommend choosing a little more data.

Do I set up the eSIM before I leave or after I arrive?

We recommend installing it (registering the QR code) before you leave, while you have Wi-Fi. Data starts when you turn on data roaming after you arrive in United States Virgin Islands. Just remember "set up before you leave, switch on when you arrive" and you can use the internet as soon as you land.

How many GB of data do I need for a trip to United States Virgin Islands?

For mostly maps and messaging, we recommend about 1 GB a day; to use plenty of social media and photo uploads, about 2 GB a day. If you stream a lot of video or tether a lot, an unlimited plan is better. You can always buy more if you run short, so it is fine to choose a little extra at first.

United States Virgin Islands eSIM plans

Instant delivery

A travel eSIM for United States Virgin Islands starts from ₩5,559 and works as soon as you buy it. In United States Virgin Islands it connects automatically to local networks such as AT&T · T-Mobile · Liberty Mobile · Viya (4G/LTE, 5G where supported), with population coverage of about 88%. Install it with the QR code before you leave and you can use the internet as soon as you land, with no roaming setup.

Sent instantly by email
30-day refund
Customer support in Korean
Credit card · Apple Pay

United States Virgin Islands eSIM at a glance

Price: From ₩5,559
Local networks: AT&T · T-Mobile · Liberty Mobile · Viya
Network: 4G/LTE
Activation: QR code — install before you leave
Recommended data: Maps and messaging 1 GB a day · more room 2 GB a day · video: unlimited

eSIM plans you can use in United States Virgin Islands

Data	Validity	Price
Unlimited	1 day	₩7,546
Unlimited	3 days	₩20,798
Unlimited	5 days	₩34,078
Unlimited	7 days	₩47,330
Unlimited	10 days	₩67,216
Unlimited	15 days	₩100,367
Unlimited	30 days	₩199,834
1 GB	7 days	₩5,559
2 GB	15 days	₩10,205
3 GB	30 days	₩14,031
5 GB	30 days	₩22,786
10 GB	30 days	₩41,342
20 GB	30 days	₩73,849
50 GB	30 days	₩166,683

Known as the jewel of the Caribbean, the United States Virgin Islands are an island paradise where deep blue sea, white sandy beaches and tropical jungle come together. From the lively harbour town of St. Thomas and the untouched nature reserve of St. John to a leisurely sugar plantation tour on St. Croix — each island has a completely different charm. It is US territory, yet full of an exotic Caribbean atmosphere, so it is drawing more and more attention from travellers from Korea who dream of a different kind of holiday. To enjoy snorkelling and scuba diving, yacht tours and a relaxed cocktail at a beach bar at sunset, you need reliable internet solidly behind you. With a single Yeohaengyusim eSIM, connect the moment you arrive and capture every moment in the United States Virgin Islands freely.

Flight time from Korea

About 20–22 hours (including a stopover, no direct flights)

Time difference

13 hours behind Korea (UTC-4, KST-13)

Best season to go

December–April (dry season, outside hurricane season)

Plug type

Type A/B, 110V (adapter and voltage check needed)

Why you really need a travel eSIM for the United States Virgin Islands

The United States Virgin Islands are a small Caribbean paradise made up of several islands. Travelling here means hopping between islands by ferry, finding snorkelling spots and exploring hidden beaches in every corner, so a navigation app such as Google Maps is essential. To get a SIM locally you have to go into the town of Charlotte Amalie on St. Thomas, and comparing plans in English is no small hassle either. If you install your Yeohaengyusim eSIM before departure Korea, you connect automatically to the AT&T network right after landing at Cyril E. King Airport on St. Thomas. Because it uses the same AT&T infrastructure as the US mainland, you can use 4G LTE reliably at the main tourist spots, harbours and resort areas. The connection often holds on board when you take a yacht or ferry, so there is no worry about staying in touch in real time during your trip. You can keep your existing Korean SIM as it is while using data on the eSIM, so you will not miss calls to your Korean number after you return home either. With a single Yeohaengyusim eSIM you can share the dazzling Caribbean days in real time and go on adventures freely without fear of getting lost.

Network coverage in United States Virgin Islands

Carrier

AT&T

+ T-Mobile

Network

4G/LTE

Coverage

88%

How do I install a United States Virgin Islands eSIM?

1
Buy a plan
Choose a data plan for United States Virgin Islands and complete payment.
2
Scan the QR code
Open the email we sent and point your phone camera at its QR code.
3
Install the eSIM
Complete the eSIM installation as prompted. Doing it before you leave is simplest.
4
Connect on arrival
Once you land in United States Virgin Islands, switch data roaming on and you're online.

1
Buy a plan
Choose a data plan for United States Virgin Islands and complete payment.
2
Scan the QR code
Open the email we sent and point your phone camera at its QR code.
3
Install the eSIM
Complete the eSIM installation as prompted. Doing it before you leave is simplest.
4
Connect on arrival
Once you land in United States Virgin Islands, switch data roaming on and you're online.

Which plan is right for me?

Short trip

For a short 3–7 day trip, an unlimited data plan is ideal.

Business trip

We recommend a high-data plan with plenty for video calls and email.

Long stay

Staying a month or more? A large-data plan gives the best value.

Family trip

Families sharing a connection across multiple devices should pick a tethering-enabled plan with a generous data allowance.

eSIM, local SIM or pocket Wi-Fi: what suits a trip to United States Virgin Islands best?

	eSIM	Local SIM	Pocket Wi-Fi
Activation	Instant (QR code)	Buy locally	Pick up / delivery
Setup	2 minutes	SIM swap needed	Separate device
Price	From ₩5,559	₩10,000~50,000	₩5,000~15,000/day
Network	Local 4G/LTE	Local 4G/LTE	Local 4G/LTE
Devices	1 smartphone	1 smartphone	Up to 5
Flexibility	Top up any time	Fixed data	Daily rental
Best for	Ideal for travellers	Long stays	Families / groups

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