South Korea entry requirements for United States passport holders
US passport holders don't need a visa for South Korea for stays up to 90 days (tourism, business, or short visits). Just make sure your passport is valid for at least 6 months from arrival and has a blank page for the entry stamp.
Entry requirements
| Requirement | Details | Status |
|---|---|---|
| Valid passport Must be valid for the duration of your stay | Your passport needs to be valid for the entire time you're in South Korea. Airlines sometimes enforce a 6-month validity rule, but Korean immigration only requires validity covering your stay. | Required |
| Return or onward ticket Proof of departure from South Korea | Immigration officers at Incheon and Gimpo routinely ask for a return or onward ticket. Have a printed or digital copy ready — airlines also check this before boarding. | Recommended |
| Proof of accommodation Hotel booking or host invitation | Carry a hotel confirmation or a letter from your host. Immigration rarely asks for it, but having it ready avoids delays if they do. | Recommended |
| Proof of funds Show you can support yourself | Have a bank statement or credit card available. Officers almost never ask for it for US passport holders, but it's good to have on hand. | Recommended |
What happens at the border
Overstay calculator
Enter your arrival date and we'll tell you exactly when you need to leave.
Staying longer & fees
Visa options if you want to stay beyond the free limit:
Apply at Korean embassy abroad. Requires proof of funds and itinerary.
Ideal for frequent visitors. Requires previous travel history or strong ties.
For study, work, or research. Requires sponsor in Korea.
For remote workers with proof of income. Currently pilot program; check eligibility.
| Service | Cost |
|---|---|
| K-ETA (Korea Electronic Travel Authorization)Required for visa-free travel; valid for 2 years. Apply online before departure. | ₩10,000 (~$7.50 USD) |
| Stay extension feeExtensions are not available for visa-free stays; this fee applies only if eligible under special circumstances. | ₩60,000 (~$45 USD) |
| Tourist visa (single entry)For stays longer than 90 days or if visa-free is not used. Valid for 3 months. | ₩40,000 (~$30 USD) |
| Tourist visa (multiple entry)For multiple visits within validity period. Valid for 1 year (or longer based on eligibility). | ₩80,000 (~$60 USD) |
| Overstay fine per dayFine depends on duration; maximum cap varies but can be substantial. Avoid overstaying. | ₩100,000–₩200,000 (~$75–$150 USD) per day |
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 South Korea
US passport holders do not need a transit visa for airside transit at South Korean airports, provided they stay in the international transit area and have a confirmed onward ticket within 24 hours.
- If leaving the airport or transiting to a domestic flight, a visa or visa-free entry is required.
- Holders of valid US, Canada, Australia, New Zealand, or Schengen visas may transit without visa for up to 30 days under certain conditions.
Health & vaccines for South Korea
Fine particulate matter (PM2.5) can be high, especially in winter and spring; those with respiratory issues should take precautions.
Standard hygiene is good, but travellers should avoid undercooked meat and street food if sensitive.
Rare but present in rural areas; consider vaccination if hiking in forests.
Based on CDC and WHO guidance. Consult a travel medicine clinic 4–6 weeks before departure for personalised advice.
Immigration offices for extensions
Main office for extensions and visa issues. Arrive early; take a number.
Handles extensions and re-entry permits for southern region.
Practical information for US travellers
Getting to South Korea
Nearby destinations you can also visit
Countries close to South Korea — with your same passport.