South Korea: electronic travel authorization required for US citizens.
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| Requirement | Electronic travel authorization required |
| Typical stay allowed | 90 days |
| Advance authorization | K-ETA |
| Passport validity buffer | 6 months |
US citizens need to register for South Korea's K-ETA (Korea Electronic Travel Authorization) online before departure, in addition to the visa-free short-stay allowance.
Yes. US citizens need to register for South Korea's K-ETA (Korea Electronic Travel Authorization) online before departure, in addition to the visa-free short-stay allowance.
US citizens can generally stay up to 90 days per visit under the standard tourist entry terms.
Yes — K-ETA is required, and should be arranged before you travel, ideally as soon as you have your itinerary.
A commonly-applied rule is that your passport should remain valid at least 6 months beyond your trip. Always confirm the exact requirement close to your travel date.