Sandra has played for Iceland's national team and was a squad member at the 2009 and 2013 editions of the UEFA Women's Championship.
A contract dispute followed and Sandra quickly left, but she was not allowed to play for Stjarnan again until FIFA ruled in her favour.
[5] Sandra made her senior Iceland debut in a 3–0 defeat by the United States in July 2005.
[6] She was seen as the national team's third choice goalkeeper behind Þóra Björg Helgadóttir and Guðbjörg Gunnarsdóttir and collected five more caps during the next five years.
National team coach Siggi Eyjólfsson selected Sandra in the Iceland squad for UEFA Women's Euro 2013 in Sweden.