<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by Middle_Seat:
At some point doesn't the number of QF miles required jump from 125,000 to 200,000??</font>
After 10,000 miles. Since (BA) Concorde only flies JFK-LHR (and return) you can continue on to almost any city in Europe on the same award.
If you live in the West, you could get to NY on your own and then fly New York to LHR on Concorde, and then back to Denver or Seattle in BA F on your award.