1) Open a starwood preferred guest account. You can join for free by going to http://www.spg.com
2) Buy 21 subscriptions to Inside Flyer magazine @ $59.95 each by going to http://www.insideflyer.com/starwood
Total cost to you is $1258.95. Get a total of 52500 starwood points. Give away the subscriptions you don't want to charity or your friends.
3) Open a Qantas Frequent Flyer account: https://www.qantas.com.au/fflyer/dyns/joinff
Transfer the 52500 starwood points into a Qantas account. One starwood point is worth 2 QF points, so with the starwood bonus, 52500 starwood points becomes 125,000 Qantas points.
4) Redeem 125,000 Qantas points for a roundtrip ticket on the concorde.
Regular round trip flight on the Concorde (LHR-JFK) is $12,749.02. Enjoy the extra $11,490 you just saved. The concorde flies at Mach 2. One way from London to New York is usually about 3.5 hrs. Supposedly you can even see the curvature of the earth from the great height that the bird flies.
Credit to Johnep1 who originally thought of this idea on Flyertalk.com:
http://www.flyertalk.com/forum/Forum1/HTML/006677.html
Hurry. Offer ends June 30!!!