Korean Air will operate 32 of its 110 international routes throughout the month of June as it works to slowly resume its services.
In a statement, it said its international flights will operate at 20% capacity compared to planned operations.
"Korean Air has added more international passenger flights to its June schedule to prepare for increased travel demand after COVID-19 restrictions per country are relaxed," South Korea's flag carrier said.
It noted that the airline also expects to secure more routes and capacity for cargo transport by reopening some of its international flights.
The flights to resume in North America are Los Angeles, New York, San Francisco, Atlanta, Chicago, Washington D.C., Seattle, Vancouver and Toronto.
In Europe, Korean Air will also be resuming its Paris, London, Amsterdam and Frankfurt service.
Korean Air will also restart its flights to Bangkok, Manila, Phnom Penh, Jakarta, Kuala Lumpur, Yangon, Hanoi, Ho Chi Minh City, and Singapore.
In Northeast Asia, the airline said it will resume its Tokyo, Narita service, including flights to mainland China - Shenyang, Beijing, Shanghai, Pudong, Guangzhou, Mudanjiang, Qingdao, and Yanji. Korean will also start flying again to Taipei in Taiwan and Ulaanbaatar in Mongolia.
The 32 routes will mean 146 flights per week, compared to the 13 routes and 55 flights that Korean Air serviced in May.
The airline said routes with the expected demand for both passengers and cargo have been selected for reopening.