DEL-LHR seat selection
I have a long haul flight from DEL to LHR on BA next Tuesday at 3:40am. As AA EXP, I reserved an exit seat. But I also found many seats are open. I would rather pick a seat in middle so I can lie down to sleep during the flight. Are there many passengers filling up those seats in last minutes? How to find more passenger info for this flight? Thank you.