3 FC tickets from Florida to SE Asia. A total of about 60 hours in the air and another 10-20 hours of layovers depending upon which waitlists clear.

Far and away the biggest wad of miles I've ever shot at once (I think my previous record may have been 120,000 for 2 coach tickets, primarily on SQ, to the same destination). But when I tried to price the itinerary out on ITA, I could only get it to quote Business Class. That was over $7,500 / ticket so $22,500 for the full itinerary. 420,000 miles suddenly seems so much cheaper.