Ive crossed the North Atlantic in March for the last couple of years and havn't had any really bad flights.
The roughest place we found was just as you pass the Nova Scotia/New Foundland area but then the rest of the flight was smooth.
Nova Scotia always seems to be the worst place on the trip for most months of the the year (For us atleast). October this year we flew to Orlando and ran into the remnants of a Hurricane in the same area, cloud up to FL380 and it was bumpy as hell for a while
Matt.
