Downtown San Diego! I had a perfect vantage from my seat.
(err, sort of. this was in the airport, and really cool!)
The area in the foreground is the mainland, and then Coronado is in the center. My hotel was about where the photo ends on the right side, but looking towards the mainland.
Downtown San Diego is in the center, and you can see the bridge from the mainland to Coronado Island (which is not an island, it's a peninsula that connects to the mainland on the other side, but hey, semantics). The airport for the public is on the mainland; the airport on the peninsulisland is a military base.