Originally Posted by
Often1
Even if it is done overnight, unless one is on the first flight of the day, the aircraft are not cleaned in any meaningful way across the day.
It could be operation room clean, but once you load 150 people onboard, all bets are off.
As to cleaning... everything I read says it gets spread via "droplets" from people sneezing, etc. Have not seen any reports of extended life on tray table, etc.