There's even a McCallan 30 for $350/bottle, if you want to get fancy...not that McCallan 18 at $80 is anything to sneeze at.
Still, I think the McCallan is a bit unrealistic for the airlines, although at $5,000+ per flight, I'm not sure why...but the Royal Salute used to be a mainstay...
There's also some decent XO cognac out there, in my recollection, but it's been about 5 years since I've taken those flights.
Even the BOS Flagship Lounge had a good XO available.