Korean Air, on June 12, 2021, operated a nonstop flight from Seoul to Miami with a Boeing 777-300ER.
The flight was 13,405km/8,300m for a total flight time of 14 hours and 42 minutes, making it their longest nonstop flight ever.
The 77W was used to transport 25 tons of COVID-19 diagnostic kits to the Dominican Republic.
https://www.koreanair.com/us/en/footer/ ... -amid-covi- Miami