I had Glory shipped from Ontario to New Brunswick and then back again two years later and it was around $350 each way. This was almost 10 years ago now (sheesh time sure does fly!) so I'd expect it to be more now.
We actually got lucky and the stable in New Brunswick that I was bringing her too knew a guy who made regular trips to Ontario shipping TB brood mares back and forth and we were able to get Glory on one of those regular runs which helped the cost a little. So if you are going a head with this plan definitely ask the barn you are going to if they know of any companies that do regular runs back and forth.
I've also used Equine Express to ship Cirrus from Newmarket to London and back. Super nice trailer, air ride trailer and she charged $250 each way. They do regular runs across the country too.
It's definitely doable and not as expensive as you might think
