United Airlines #UA858 took off in 2023 but will land in 2022.
United Airlines #UA858 took off from South Korea in 2023 and will land in the USA in 2022.
The Boeing 777-300ER took off from Seoul shortly after midnight.
https://twitter.com/RadarBoxCom/status/1609237663197847553
The flight is expected to land in San Francisco more than 6 hours before the new year.