Hi Folks,
I am fairly new in this game, but did acquire a few miles. I am looking to travel with my wife in Biz class from NYC to PRG Jul 27 to Aug 4. I found 50K Flying blue reward in Biz class with $59 taxes from JFK to PRG (which I think is not bad). I could not find the flight back for my dates in biz class. Any suggestions what can be used to get from JFK to PRG round trip or one way PRG-JFK and spend fairly low amount of miles?

Any hotel recommendation is much appreciated as well.

Here is the points that I have:
BritishAirways: 100K
Chase Ultimate Rewards: 100K
Amex MR: 100K
Continental: 100K
Delta: 100K
SPG: 100K

Thanks for all your help.