The film was first announced on December 13, 2018, on Twitter through BTS' official account. It was revealed that 42 cameras were used to shoot the film and that it was co-produced by Big Hit Entertainment and CJ CGV Screen X. The film will be available in 2D and ScreenX formats.
Tickets went on sale on December 18. The trailer for the film was released the following day.
Described by Pathé Live as the "widest worldwide release ever," Love Yourself in Seoul was released in 4,100 cinemas around the world. It is 113 minutes long and upon release day trended worldwide.
Two cities in Russia, Dagestan and Grozny, banned the film from being released after people protested it online due to "over-the-top immoral behavior" as they believed BTS showcased homosexual behavior. They made no further comment afterwards.