Not sure if this is what you're looking for,, but I know Leicester uni does an Ancient History & Archeology BA, both in-person and online. Hope this helps!!
Just be aware that any joint-subject degree means you will only do half the degree in each subject. Many people don't think about the reality of this. You will be restricted with which units you are able to take because of timetable clashes, pre-requisites etc. This can be frustrating!