From 2009 to 2013, Þórdís Hrönn played for Icelandic Úrvalsdeild kvenna club Breiðablik.
[2] In March 2014, Þórdís Hrönn signed for Swedish Elitettan side Älta IF.
[3] In 2016, Þórdís Hrönn signed for Icelandic Úrvalsdeild kvenna team Stjarnan, and she played for them until 2018, when she joined Swedish Damallsvenskan club Kristianstads DFF.
[5] Þórdís Hrönn was supportive of the 2020 Úrvalsdeild kvenna being ended early due to an increase of COVID-19 cases in Iceland.
[9] She was in the Iceland squad for the 2019 Algarve Cup;[11] she was on the bench for three matches of the tournament, but did not make any appearances.