United States entry requirements for South Korea passport holders
South Korean passport holders need a visa or an approved ESTA to enter the United States. For tourism or business visits under 90 days, you can apply for an ESTA online — no embassy visit required. This page covers everything you need for a smooth entry in 2026.
Entry requirements
| Requirement | Details | Status |
|---|---|---|
| US visa application Visa required | You need a valid US visa before travel. Apply at the US Department of State website — processing times vary by visa type and embassy. Schedule your interview early; wait times can be several weeks.Apply for US visa | Required |
| Valid passport Must be valid for entire stay | Your passport must be valid for the entire duration of your stay in the US. No minimum validity beyond departure is required by US law, but airlines may enforce 6 months — check with your carrier. | Required |
| Return or onward ticket Required for entry | US immigration officers routinely ask for proof of onward travel. Have a printed or digital copy of your return or onward ticket ready. Airlines also check this before boarding. | Required |
| Proof of accommodation Recommended | Carry a hotel booking confirmation or a letter of invitation from your US host. While not always requested, it helps demonstrate your travel plans if asked. | Recommended |
| Proof of funds Recommended | Have bank statements or a credit card showing you can cover your stay. US immigration rarely asks for this, but it's good backup if questioned about your ability to support yourself. | Recommended |
What happens at the border
Staying longer & fees
Visa options if you want to stay beyond the free limit:
Allows tourism, business meetings, and medical treatment. Must apply at US embassy/consulate.
Same fee as single entry; allows multiple visits over 10 years.
For full-time academic studies. Requires I-20 from US school.
For specialty occupations. Requires employer sponsorship and lottery.
| Service | Cost |
|---|---|
| B1/B2 Tourist Visa (single entry)Non-refundable application fee for most nonimmigrant visas. | $185 USD (approx. 250,000 KRW) |
| B1/B2 Tourist Visa (multiple entry)Same fee as single entry; validity up to 10 years for South Korean passport holders. | $185 USD (approx. 250,000 KRW) |
| Stay extension (Form I-539)Filing fee for extending B1/B2 stay; processing takes months. | $370 USD (approx. 500,000 KRW) |
| Overstay fineOverstay may lead to bans; no fixed daily fine but penalties apply. | Varies; typically $0–$500 USD depending on duration |
Common reasons for entry denial
Approval probability calculator
Answer 6 quick questions — we'll estimate how likely you are to be approved for entry based on typical immigration patterns.
Transiting through United States
South Korean passport holders generally need a C-1 transit visa to change planes in the US, unless they have a valid US visa or are from a Visa Waiver Program country (South Korea is in VWP, but transit rules still apply for non-VWP travel).
- Holders of a valid US visa (e.g., B1/B2) may transit without a separate transit visa.
- Travelers from Visa Waiver Program countries (including South Korea) may transit under ESTA if eligible.
Health & vaccines for United States
Tick-borne disease common in northeastern and upper midwestern states; use repellent and check for ticks.
Mosquito-borne virus present in most states; risk is highest in summer and early fall.
General risk from undercooked food or contaminated produce; practice good food hygiene.
Based on CDC and WHO guidance. Consult a travel medicine clinic 4–6 weeks before departure for personalised advice.
Immigration offices for extensions
For extension applications (I-539), file by mail; office handles interviews and emergencies.
Popular for South Korean travellers; bring all supporting documents.
Practical information for KR travellers
Getting to United States
Nearby destinations you can also visit
Countries close to United States — with your same passport.