Morningstar, it also depends on when you are flying, and, as the previous poster basically said, whether or not you are married to a particular airline.
Is your travel for this summer? A $456 fare to LON is a pretty good for the summer.
Are you married to a particular airline? If not, have you considered Northwest? At NWA.com you might be able to snag a fare to Gatwick for about $320, for travel June, July, and possibly beyond.
[This message has been edited by notsosmart (edited 04-23-2003).]