The group, parent to National Holidays and Just Go! Holidays, launched the appeal to its customers last week as the crisis in Ukraine continues to deepen, with its Just Go! team in Cheltenham already having received more than 100 hats.
The first batch will be sent to Ukraine in the coming days, while JG will continue to accept donations until the end of June.
Chief executive Andy Freeth said on Monday (9 April) the group would gladly welcome any donations from agents able to spare the time to get knitting.