My husband and I are finally at a point in our lives where we can do some travelling to Europe. We can easily fly out of two international airports (Seattle and Portland). Oh, Vancouver BC, too, if the price is good enough for the extra drive to that airport. So make that three.
My question: Is there somewhere to find out what airlines fly to Europe from those various airports and what hubs those airlines use that will, in general, be their cheapest option?
I'm asking because let's say, for example, that flights into Amsterdam and Frankfurt are always cheapest from all the carriers flying from these three airports. Then it would make sense to me to usually just plan on flying into them and then transferring to a European low-cost carrier or taking the train to our final destination unless, of course, some kind of special fare popped up negating this plan.
Does this make sense? If it does, how would I find out that information?