Zoom airlines JFK to London grand total $99 1 way

Are these typical prices for Zoom? I am planning a trip for next summer and want to book airfare as soon as possible (or whenever I can get the best price).

These airfares are just promotional....however, Zoom has been offering excellent fares from here in Canada to London and Paris...so much so that Air Canada has had to undercut them on these routes. We've flown them a couple of times, and serive and legroom are adequate. Zoom is almost a charter airline, so there's no guarantee they'll even fly JFK-LGW over the winter...right now, their schedule only runs until the end of October. Next summer's won't be posted until late this fall or early in the winter. If you sign up for their e-newsletter, you'll get word on when new schedules are up. www.flyzoom.com

Fares now available to January, I've just booked a NYC-LON return ticket in December for $558.65 USD including all charges.

Steve...By NYC-LON I'm guessing you mean New York to London... Is LON (?) in reference to London Hethrow (LHR) or London Gatwick (LGW)??

The city code will help me better compare your fare...

It's between LGW and JFK...thats London Gatwick.