I'm looking to book flights from STR (Stuttgart/Germany) or FRA to PVG (Shanghai) for my parents in March. Since they don't like to travel that much, I'm trying to find something more comfortable for them, either cheap business class tickets or special economy class tickets with more legroom. Do you guys have any recommendations? Flights originating from STR could go via FRA, ZRH, AMS, … I have no preference there, really, as long as the flights are affordable and comfortable.