Snoopy, that sounds like a lot to do in order to avoid flying from EWR or JFK. I don't think it's worth the hassle to go up to Westchester, fly to Canada, then fly to Europe unless you want to go Westchester and spend some time in YYZ. I've flown to Europe twice since last September from EWR: once last December (to FRA) and once in February (to MAD, returned via CDG). I don't think it's worth it to avoid EWR but that's my humble opinion.