Stuart, who has spent 13 months with the tickets specialist, will join Gold Medal and Travel 2 on December 12 in the same role.
She will report into head of sales Colin Currie and look after agent businesses in the south east.
She has previously held trade-facing positions at Saga and Cruise and Maritime Voyages.
Meanwhile, replacing Stuart at Attraction World is Sarah Ashmore, who joined on November 12 from APT where she was an account manager.
Ashmore, who has also previously held roles at Cosmos and Avalon Waterways and Travelsphere, joins as key account manager, South and will work alongside Kelly Giblin, key account manager, North.
The pair will report into Attraction World’s head of commercial partnerships, Justin Mahoney.