Board Thread:Show-Related Questions and Answers/@comment-25974054-20150105192131/@comment-25762747-20150108130024

In the episode Shattered Sight (I think so) they revealed Ingrid's fate after entering the portal to the LWM. Later on, it shown that in 2001 she used the Scroll given to her by the Apperentice in Arendelle to travel to a town called Storybrooke in Maine where she would reunite with her "sisters" soon.