I noticed that Google Flights ad box only pops up when your query is served by Google Flights (eg it starts in north america). So "flights to LON" will not bri

I noticed that Google Flights ad box only pops up when your query is served by Google Flights (eg it starts in north america). So "flights to LON" will not bring up a schedule, while "flights from LON" will. And for most of my purposes, I only care about the destinations, not exact times, so this works fine.