I was going to say both Dickinson and Kalamazoo – but others beat me to it! Both schools have long established relationships with programs in a number of countries, and have a very smooth process for transferring credit from overseas study.
If relevant, another question to ask is whether merit aid can be used for study abroad. At K, as well as a number of midwest schools my son looked at (Earlham, Knox, etc), merit aid can be used for study abroad at approved programs. But that is not the case at all the schools he researched.