Best US/Europe cities to fly in/out of for good fares?
I live in a non-hub city, and was wondering if there are general recommendations when planning a trip to central Europe as to which US city is the best to fly "out of" and which European city is best to fly "in to".
Essentially, are there US cities (Detroit, NYC, etc) that tend to have good options and good fares to Europe? For example, maybe flights from JFK-Paris are stupid expensive, but Detroit-Rome is awesome. That kind of thing. If I found an amazing fare out of some major city not my own, I could probably get myself to that city pretty easily with my SWA points.
Thank you so much!