Virgin deal today is good -- especially if you just fly TO London, and come back from the Continent on another program (like maybe Flying Blue?) to avoid the nasty UK transatlantic departure tax. From NYC, it only seems to be $153 + 5000 points ow to LHR, but I only see May dates for that price. You're not getting to London for cheaper than that these days.

https://www.doctorofcredit.com/virgi...award-flights/