It was JFK<->LGW. 6.5 hours overnight on the way over, and 7.5 daytime on the way back. and I did not recline on the way over. From BOS it should be shorter. I tried to buy mint at the gate in both directions, but they were sold out.

Food was great BTW, and the cabin crews were both excellent. They had these awesome little ice cream sandwiches on the flight to LGW.