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US passport · South Korea

South Korea entry requirements for US passport holders

Electronic Travel Authorization (eTA) required · State.gov Level 1 · Verified 2026-05-05.

Last updated

Quick answers

At a glance

Do US passport holders need a visa for South Korea?

Electronic Travel Authorization (eTA) required. eTA fee $10; valid for 90 days per visit.

What is the State.gov travel advisory for South Korea?

Level 1. Exercise normal precautions.

What's the best month to fly business class to South Korea?

April-May (cherry blossom), September-October (autumn). Avoid July-August (humid + monsoon).

Visa & entry

Visa requirements for US passport holders entering South Korea

United StatesSouth Korea visa requirements summary
Visa statusElectronic Travel Authorization (eTA) required
Maximum stay90 days per visit
Cost$10
Passport validity6 months beyond planned departure
Blank pages2 required
NotesK-ETA required since 2021. 90-day visa-free entry once K-ETA approved.

Travel advisory

Current travel advisories for South Korea

US State Department

Level 1

Exercise normal precautions.

UK GOV.UK FCDOlive · GOV.UK updated 2026-03-19

FCDO standard advice. North Korean tensions occasional; DMZ tours from Seoul subject to closure during high-tension periods.

Latest GOV.UK change: New information about global travel impacts due to escalation in the Middle East (‘Warnings and insurance’ page).

View full GOV.UK advisory →

Health & vaccinations

Health entry requirements for South Korea

No specific vaccinations required.

For comprehensive health-entry requirements always consult the destination country's health ministry and your home country's travel-medicine guidance (CDC for US; NHS Fit for Travel for UK; PHAC for Canada).

When to fly

Best months to fly business class to South Korea

April-May (cherry blossom), September-October (autumn). Avoid July-August (humid + monsoon).

Premium-cabin pricing is most competitive 8-12 weeks ahead of off-peak months and 14-20 weeks ahead of peak. Booking flexibility on day-of-week (Tuesday-Wednesday) typically saves 12-18% on most corridors.

Cities

South Korea cities we cover

Sources

Primary sources

FAQ

Frequently asked questions

Common questions about US passport holders entering South Korea.

Do US passport holders need a visa for South Korea?
Electronic Travel Authorization (eTA) required. eTA fee $10; valid for 90 days per visit.
What is the State.gov travel advisory for South Korea?
Level 1. Exercise normal precautions.
What's the best month to fly business class to South Korea?
April-May (cherry blossom), September-October (autumn). Avoid July-August (humid + monsoon).
How current is this information?
Verified 2026-05-05 against 1 primary sources. We re-verify quarterly. Always cross-check with the destination's official immigration portal before any visa-dependent travel — entry rules can change without notice.
What if my passport expires soon?
South Korea requires at least 6 months passport validity beyond your planned departure date. Airlines enforce this strictly — they will deny boarding if your passport is too close to expiry. Renew at least 9 months before international travel.
Are there health entry requirements?
No specific vaccinations required.
What does the UK FCDO say differently from State.gov?
FCDO standard advice. North Korean tensions occasional; DMZ tours from Seoul subject to closure during high-tension periods.

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