July 5: 6:40pm Boston -> JFK -> Heathrow 9:10am July 6
August 15: 6:05pm Heathrow -> Boston 8:20 same day
$598.70 including tax and some AA charge.
(And yay multi-tasking. I read up on American Airlines carry-on info while i was on hold.)
I booked a plane ticket! To London! I feel so grown-up!