Passengers wait in long lines to check in at the boarding area at Terminal 1 of Incheon International Airport on Sunday. Since the Korean government did away with a mandatory seven-day quarantine for vaccinated arrivals from other countries starting March 21, international travelers have drastically increased, according to travel agencies.
YONHAP
![Passengers wait in long lines to check in at the boarding area at Terminal 1 of Incheon International Airport on Sunday. Since the Korean government did away with a mandatory seven-day quarantine for vaccinated arrivals from other countries starting March 21, international travelers have drastically increased, according to travel agencies. [YONHAP]](https://image.koreajoongangdaily.com/10398016.webp?imageId=10398016&width=960&height=436&format=jpg)
