A keen rock climber and ballerina as a child, Azkona started her career playing futsal for Gazte Berriak, a team based in Ansoain.

[4] On 13 January 2019, she scored her first league goal for Athletic, in the 94th minute of a match against Sporting de Huelva.

[7] She became an increasingly important member of the team over the subsequent seasons as other players departed;[3] in March 2023 she agreed a new contract running to 2026.

[11][3] In October 2019, she was called up to the inaugural squad for España Promesas (essentially Spain B), along with two clubmates.

[12][13] She made her full debut as a late substitute in a 2–0 friendly victory over the United States (played in her hometown Pamplona) in October 2022.