請問在仁川機場轉機

9月要去美國
會仁川機場轉機（待4.5小時）
請問在韓國需要檢疫證明嗎？

直接問你搭乘航空公司最準
因為他們決定了能不能讓你上飛機

大韓航空相關說明如下
https://www.koreanair.com/global/en/2020_02_TSA_detail.html
在韓國
<Entry & Transit Restrictions>
• Foreign nationals who have visited Hubei in the past 14 days
• Nationals of China who have a passport issued by Hubei province
<Transit Restrictions>
• Any passenger transiting in Korea must have a confirmed connecting ticket and transit within 24 hours.

從韓國到美國
• All passengers departing from Korea to the U.S. must be issued a 'Health Screening Certificate' obtained at the quarantine desk (Exit Screening Station).
原文載於: 背包客棧自助旅行論壇 https://www.backpackers.com.tw/forum/showthread.php?t=10434199#post11661784
- The "Exit Screening Station" is located in area B 3rd floor at Incheon airport / near the exit.4 2rd floor at Busan airport.
- They will not be able to check-in at Busan airport or City Airport(Samsung/Gwangmyeong) Terminal.
- They will undergo a medical screening(fever, coughing, difficulty of breathing) and interview(lived with or care a person known to be infected with COVID-19 in the past 14 days). Depending on the result, the passengers may not be able to board the aircraft.