I'm dreaming up future excursions on Google Flights. I like using Google Flights but it hit me that something's missing. So I live in a suburb just north of Baltimore. If I'm plugging in a destination far away like AKL or TYO, I set my departure airports as BWI/IAD/PHL. But I'm not allowed to say that BWI is preferred. And when it tells me the best flights, it doesn't take into account that, you know, 8 a.m. flight out of Philly, you might need a hotel room or something. Or maybe factor in the drive time into the travel time, that sort of thing.