The search bar looks kind of strange with the black background and the bars between each character. I wasn't even sure where I should start typing as the search bar doesn't really look like a search bar. From http://sivers.org/quirks, "The best design should do what people expect, and should not make them think."
Also, I tried searching for my flight today that had been canceled. It was American Airlines flight 5066, but I entered "5066", "AA5066", and "American Airlines" and searching the flights, and could not find it.
Finally, how you checked out flightcaster.com? It's a YC startup from 2009. I'm not sure how your site does much different than that website other than the google earth visualization. I was using flightcaster.com and flightstats.com to check the status of my flight today. Perhaps you could just focus on the google earth visualization and import the data from these websites?
Sorry to be so critical above, but I hope this helps in some way. Congrats on your first launch!