# ESTA for Korean Citizens: Not K-ETA, Your Romanized Name, and the 2026 Rules > South Korea is in the Visa Waiver Program, so Korean citizens use ESTA — not K-ETA — for US trips up to 90 days. Fees, name spelling, dual-national rules. Canonical: https://chartavisa.com/guides/esta-for-koreans Last updated: 2026-07-28 ## First things first: K-ETA is not ESTA Korean travellers researching US entry requirements constantly run into both names, so let's settle it in one paragraph. **K-ETA (Korea Electronic Travel Authorization) is South Korea's own system — it applies to foreign visitors travelling *into* Korea, and Korean citizens never need one.** **ESTA (Electronic System for Travel Authorization) is the United States' system**, run by US Customs and Border Protection, and it is what a Korean passport holder needs before boarding a flight or cruise to America. If a website is asking a Korean citizen to complete a K-ETA for a trip to the US, close the tab. Everything below is about ESTA. ## South Korea is a Visa Waiver Program country South Korea joined the US Visa Waiver Program (VWP) in 2008. That means Korean citizens can visit the United States for up to **90 days** — tourism, short business trips, visiting family, or transit on the way somewhere else — **without a visa**, as long as they travel on a valid Korean electronic passport with an approved ESTA. ESTA is not a visa: it is an online pre-screening linked electronically to your passport, with no sticker, stamp or embassy visit. For the scheme in general, see [our full guide to what ESTA is](https://chartavisa.com/guides/what-is-esta); for the Korea-specific summary, the [Korea-to-US requirements page](https://chartavisa.com/visa/kr/us) has it in one place. ## Cost, validity and the 72-hour rule - **Government fee: $40 per traveller**, paid by card when you apply. This is the official US government charge; any service that helps you prepare the application charges its own fee on top, which should always be shown separately. - **Validity: two years, or until your passport expires** — whichever comes first — with unlimited entries during that window. - **Stays: up to 90 days per visit**, not extendable, with no switching to a study or work status while there. - **Timing: apply at least 72 hours before departure.** Most applications are decided much faster, but some are held for review, and airlines will not board you with a pending — rather than approved — ESTA. ## Your romanized name: copy the passport, not your habits This is the most Korean-specific mistake we see. Korean passports print your name in Roman letters, and the spelling on that biodata page — with or without a hyphen or space in the given name (GILDONG vs GIL-DONG vs GIL DONG) — is the version US systems know you by. Many Koreans use a different everyday English spelling (LEE vs YI vs RHEE), a Western nickname, or an older romanization on other documents. On the ESTA form there is only one correct answer: **enter your name exactly as it appears on your passport**, character for character. Your flight booking should match the passport too. A mismatch between the ESTA, the passport and the airline ticket is a preventable check-in delay — or a denied boarding. ## Dual nationality and travel history: check before you pay Under the Visa Waiver Program Improvement and Terrorist Travel Prevention Act, some Korean citizens cannot use ESTA at all: - **Dual nationals** of Cuba, Iran, Iraq, North Korea, Sudan or Syria are not eligible for the VWP, regardless of where they have travelled. They apply for a B1/B2 visitor visa instead (narrow exceptions exist for certain official travel). - **Travel history** matters too: presence in Iran, Iraq, Libya, North Korea, Somalia, Sudan, Syria or Yemen on or after 1 March 2011, or in Cuba on or after 12 January 2021, generally makes you ineligible for ESTA. One more case that surprises families: **Korean-American dual citizens do not use ESTA**. US law requires US citizens to enter and leave the United States on their US passport, so a dual national travels to America as an American — no authorization needed. ## The eligibility questions: honesty is the only strategy ESTA ends with a set of yes/no security questions — criminal history, immigration violations, prior visa refusals and so on. Two rules. First, a truthful “yes” does not automatically deny you, but a false “no” discovered later can bar you from the US for years — CBP cross-checks its own records. Second, if you have previously been refused a US visa or denied entry, ESTA may simply not be your route: in that situation the honest answer often leads to an ESTA denial, and the correct path is the **B1/B2 visitor visa** — a DS-160 form, a $185 government fee and an interview at the US Embassy in Seoul. Slower and more expensive, but it is the route that actually works after a refusal. ## Two years, many trips — how the mechanics work An approved ESTA covers every US trip you take while it is valid, so frequent travellers do not reapply each time. Three details worth knowing: renewing your passport cancels the ESTA (it is tied to the passport number, so a new passport always means a new application); the 90-day limit applies per visit, but back-to-back long stays invite questions about whether you are effectively living in the US; and you can check the status of an existing ESTA on the official CBP site instead of paying again out of doubt. ## When Koreans need a real US visa ESTA covers short visits only. You need an actual visa if you plan to **work, study, or stay longer than 90 days**, if you are ineligible under the rules above, or if your ESTA is denied. For most travellers that means a B1/B2 or another nonimmigrant category via the DS-160. Not sure which side of the line your trip falls on? Our free [visa checker](https://chartavisa.com/tools/visa-checker) answers in seconds. ## Approval lets you board — the officer decides entry An approved ESTA is permission to travel to the US, not a guarantee of admission: the CBP officer at the airport makes the final decision and can ask about your plans, funds and return ticket. This is normal and worth preparing for — we cover it in detail in [Does ESTA guarantee entry?](https://chartavisa.com/guides/does-esta-guarantee-entry) ## Checklist before you fly - Valid Korean e-passport, with the ESTA linked to *this* passport, not one renewed afterwards. - ESTA approved — not pending — for every traveller, including children. - Name on the ticket matches the passport romanization exactly. - Trip is 90 days or less, with no work or study planned. **Charta Visa is a private travel-authorization preparation and review service. We are not a government website and are not affiliated with any government.** Our $39 service fee is separate from, and in addition to, the $40 US government fee. [See how our review service works](https://chartavisa.com/apply). ## FAQ **Do Korean citizens need a US visa?** Not for short visits. South Korea is a Visa Waiver Program member, so Korean citizens visiting the US for up to 90 days for tourism, business or transit need an approved ESTA instead of a visa. A real visa (usually B1/B2) is needed for longer stays, work, study, or if ESTA is denied. **What is the difference between K-ETA and ESTA?** K-ETA is South Korea's authorization for foreign visitors entering Korea — Korean citizens never need it. ESTA is the US authorization that Korean citizens need to travel to the United States. They are separate systems run by different governments. **How much does ESTA cost and how long is it valid?** The official US government fee is $40 per traveller. An approved ESTA is valid for two years or until your passport expires, whichever comes first, and covers unlimited trips of up to 90 days each. **Which name spelling should I use on the ESTA form?** Exactly the romanized name printed in your Korean passport, including any hyphen or space in your given name. Do not use a different everyday English spelling or nickname, and make sure your flight ticket matches the passport too. **What happens if my ESTA is denied?** A denial is not a ban from the US. The standard next step is to apply for a B1/B2 visitor visa at the US Embassy in Seoul — a DS-160 form, a $185 government fee and an interview. Plan extra time, as interview appointments can take weeks. ## Sources - [US Customs and Border Protection — Official ESTA application](https://esta.cbp.dhs.gov/) - [US Customs and Border Protection — Visa Waiver Program](https://www.cbp.gov/travel/international-visitors/visa-waiver-program) - [US Department of State — Visa Waiver Program](https://travel.state.gov/content/travel/en/us-visas/tourism-visit/visa-waiver-program.html)