It could be available on cable TV channels that often air holiday movies. For example, Hallmark Channel or Lifetime. You can also look on digital rental or purchase services like Amazon Prime Video or Google Play Movies.
Some local video stores or libraries might have a copy. Another option is to search on subscription-based services dedicated to classic or holiday films. Good luck with your search!
You might be able to find it on popular streaming platforms like Netflix or Hulu. Check those first.