Originally Posted by
augustus21
NYC-BOS is only 30 minutes by air, so the flight times are ~7 hours to London in both cases. You cannot fly a longer flight on BA metal out of those cities, as they both land in London.
It may be only 30 mins by air but it's several hours of hassle at each end. The train take you from downtown to downtown in less time overall as is much more pleasant experience. We have offices in NYC and BOS and the only time anyone flies the route is if they have a connecting flight at the other airport.