Upseat strives to make upgrading simple for people traveling by plane and to generate ancillary revenue for airlines. You most likely know the feelings of... - missing legroom - screaming/crying kids - fighting over the armrest - a kid kicking in the back of your seat ... when traveling by plane What you may not knows is that airlines have a lot of premium seat that never get sold. That means.. - an extra revenue for the airlines that isn't utilized - CO2 that is derived on flying empty seats around - seats that could be used to enhance your travels, but again isn't utilized..