I'm starting to research flights to San Diego this summer for Comic Con. So far the cheapest one I found includes a thru flight. I have no idea what that is. I googled it and it says it's a stop without changing planes. Does that mean it just stops to pick up more passangers and we stay on the plane, same seats and all or do we have to get off and reboard? Sorry but I've never heard of this before. Does anyone have any experience?