[14] On 7 February 2018, Cho signed a one-year contract with Avaldsnes IL, becoming the first South Korean woman to play in Norway.

In December 2018, South Korean media reported that Cho had signed for West Ham United of the English FA Women's Super League.

[18] Cho So-hyun was officially announced as a West Ham player on 13 January 2019 via the club website where she was quoted as saying "It's always been my ambition to play in England, so this is a very exciting time for me.

[28] On 14 September 2023, Cho joined Women's Championship club Birmingham City, signing a one-year contract with an option for another season.

That victory saw South Korea reach the final of the AFC Women's Asian Cup for the first time in history.

[38] At the 2023 FIFA Women's World Cup, Cho notably scored South Korea's only goal of the tournament in a 1–1 draw with Germany.

[39][40][41] In an interview with British journalist Drew Diamond, Cho revealed that amongst her many ambitions in life is to become a general manager of a women's football club in her native South Korea.

[42] Alongside fellow South Korean footballer Son Heung-min, Cho was an ambassador for AIA Group where she promoted healthy living.

[citation needed] Suwon FMC Incheon Hyundai Steel Red Angels INAC Kobe Leonessa West Ham United South Korea Individual