Nice price and I don't remember ever posting a deal for Prague before.
Virgin Atlantic / British Airways have round trip airfares travelling from New York (JFK) and Prague Czech Republic (PRG) for $480, making 1 stop in London.
Departs JFK: Nov 9, 10, 17, 24; Dec 1; Jan 12, 19, 26; Feb 2, 23; March 2, 9, 16, 23; April 6, 26, 27; May 4
Returns: wide and good availability returns on Saturday, Sunday or Monday
Use dates and book it on Priceline [priceline.com]
, Expedia [expedia.com]
or Orbitz [orbitz.com]
. Bundling hotel with airfare will save money. Or check out Hotwire's Hot Rates [hotwire.com]
Prague Travel Guide [czechtourism.com]