On Saturday I was at YVR airport and saw what I've seen a few times before - a plane painted with a Star Alliance decal. No "Air New Zealand" or "Air Canada" or whatever, JUST Star Alliance.
Then this morning, walking outside work, I saw a plane fly over with just the SkyTeam decal all over it.
I've never seen a "Star Alliance" flight, or heard of anyone going in these planes. What's the deal? They can't just be advertising, surely? Or are they occasionally used for code-sharing flight or similar?