Originally Posted by
darthbimmer
If you're a Southwest Airlines flyer, or willing to fly Southwest, you could book one of their fares now and rebook later, getting a voucher for the full difference, if a lower price appears.
I was going to mention this, but I'm guessing that based on BAEC membership that the OP is British, and may not have another opportunity to use the remaining Southwest funds within 12 months.