Which is Greener, home or abroad?

In Ireland abortion is illegal, but women can legally fly to England for the operation, if it were to be legalized and say 61 clinics were built in Ireland would that be greener than having 2-3 thousand women fly across the channel each year or would construction energy and maintainence be more damaging? From the point of view of Irelands carbon footprint not the world. I reckon its greener to build but I want to be sure, thanks