Too much time in E-175s from United and American. You can see the safety card in the top of the picture with a blue stripe on the side, that shows it to be United to me. American uses a different color scheme and Delta uses a different design. Spirit doesn't fly any Embraer jets, they only fly Airbus. Also I was incorrect, it is not a United flight, it's a flight being operated on behalf of United Express. United itself doesn't operate any Embraers. But at least three airlines operate them with United on the side of the aircraft.