It's actually 9 time zones different from the Eastern US if they held Europeans in Moscow. But realistically, that's about the farthest east Europeans would ever be, so we are talking at most 4676 miles from New York. OTOH, Tokyo is 5471 miles from LA and that's about the closest 4CC would ever be outside North America.Even East Coast to most of Europe is a pretty long flight, and more importantly, a six time zone difference (if it's a location in central European time).
Still, it does seem like more of the top skaters are making the trip than there were several years ago. I think the ice dancers are setting a good example here.