"Sweetest trip on the 777 (if you're local to New York) is the morning JFK-LHR. Leaves at 0900, arrives 1900. Return leaves LHR around 1700 and lands jfk around 2000. Talk about staying on your body clock! Super senior trip."
Goes to BA while 777's are under overhaul eff Mar/Apr. Various durations mentioned in LHR - 3 or 6 months, until October, until the winter schedule, until December, until the end of the year.
Nice trip. Fly over. Typically the entire crew, minus slam clickers, gets a bite, sleep in(often until wake up 0730 body time), fly back. Bring a hat, it's like a transcon with the sun in your eyes.