Korean Authorities require all customers traveling to or via South Korea (ICN) download and install a COVID-19 self-diagnosis mobile app on a cellphone. To ensure a smooth arrival process, Delta recommends that the app be downloaded, and the information requested in the app be completed, prior to travel. To download the app, please visit: http://ncov.mohw.go.kr/selfcheck/, 

Customers are also required to complete a Health Declaration form and a Travel Record Declaration form that will be provided to customers onboard the flight.

Upon arrival, Korean government officials will conduct a temperature check of all arriving customers, verify address and contact information while in South Korea, collect the forms and verify that the COVID-19 self-diagnosis mobile app has been installed and completed.

Effective April 14, the Republic of Korea expanded its inbound passenger screening to include testing of all passengers arriving from the United States.  Previously, passengers on U.S. flights were tested only if they presented symptoms upon arrival.  As a result of the change, long-term visitors, including those who are asymptomatic, will be directed to undergo testing within three days of their arrival while also carrying out a mandatory 14-day self-quarantine period.  These individuals will receive notification regarding when and where to be tested. Short-term visitors will continue to quarantine in Korean government facilities for 14 days following arrival.

Customers may check your eligibility to change or cancel here.