1) A negative COVID-19 test results
Effective from September 3, all travelers are no longer required to submit pre-departure negative test results. A pre-departure RAT self-test is recommended, but not required.
2) Re-entry permit for long term residents
Effective April 1, 2022, registered long-term visa holders (including D-7, D-8, D-9, E-7, F-2, F-3 and F-5 visa holders) who have completed their alien registration process will be able to travel abroad without obtaining a re-entry permit, as currently required.
A re-entry permit will be required only if the registered long-term visa holders are seeking to re-enter South Korea after one year (from departure date) of being outside of the country, with some exceptions.
3) K-ETA(for short-term visit only)
K-ETA is an electronic travel authorization that visa-free foreign visitors need to obtain before entering the Republic of Korea, by submitting relevant information online such as their travel information.
Purpose of travel should be tourism, visiting a family member, participating in events or meetings, or commercial business (excluding pursuit of profit).
Starting 1st September 2021, K-ETA is Mandatory for all foreigners entering Korea from visa waiver countries and visa-free countries. All foreigners without either a K-ETA or a valid Visa will not be permitted to board a plane to Korea.
Exceptions
(Resource: https://www.k-eta.go.kr/portal/apply/index.do)
The Government of the Republic of Korea has decided to lift a seven-day quarantine mandate for all travelers entering from abroad, regardless of whether they have been vaccinated or not, from June 8.
No restrictions for using public transportation from the airport to your residence.
Previously, those who arrived from abroad were only allowed to take quarantine taxis or personal vehicles or the designated train to leave the airport. As the Korean government lifted up the restrictions as of March 31, 2022, Incheon International Airport removed COVID-19 information desks and separate waiting zones for international travelers for public transportation.
All overseas entrants need to take the on-arrival PCR test on the day of arrival or by the second day of arrival at least. For example, if you arrive in Korea at 9am on 25th of July, you need to take a test by midnight on 26th of July.
PCR test to be taken at public health center near your accommodation. You need to be in quarantine until you get a negative test result. The second test, which had to be mandatory within 6~7th day of entry will be changed to recommendation. Thus, the total number of test after entering the country will be reduced from two to one.
Travelers with short-term visas should take a PCR test at the test centers in the airport. Please check at https://www.airport.kr/ap_cnt/en/svc/covid19/medical/medical.do
When you test positive on PCR, you need to be in quarantine for 7 days.
International travelers who are less than 45 days after initial infection and test positive upon arrival are considered false positive. This is due to viral shedding and they can be exempted from the mandatory quarantine. They must have proof of the initial infection positive test result. The test result must include the following information: patient name, date of birth, test type and date, date of issuance, and name of test authority.
Q-code is a system established by the KDCA in order to shorten the time for quarantine inspection and provide the conveniences overseas entrants require upon entry to the Republic of Korea
Travelers are encouraged to register their travel and health information through the Quarantine COVID19 Defence (Q-Code) system BEFORE traveling to Korea.
This is not a requirement but a recommendation.
All arriving passengers are required to take a PCR test within one day after arrival regardless of vaccination or age, and are encouraged to upload the results into the Q-Code System.
(Update: 2022-09-05)