Wrapped up my time in London with a stop at the relatively new at the time American Express Centurion Lounge at Heathrow, followed by some great planespotting from my window seat on a Delta A330-900neo.

The JetBlue experience on another A321LR, this time in Core, on Flight B620 with service from LHR to JFK.

From lounge to flight, the experience on VS137 in Premium.