Hildur started her career with Valur but left the team midway through the 2016 season and joined Breiðablik.
[3] In June 2020, Hildur tore her anterior cruciate ligament, resulting in her missing the rest of the season.
[4] In 2022 she moves to Fortuna Sittard in the Netherlands, a new team in the Dutch Eredivisie Vrouwen.
[6] She received her first international call up in 2020, after Alexandra Jóhannsdóttir had to be withdrawn from the squad due to an injury.
This biographical article related to women's association football in Iceland is a stub.