Anyway... it turns out that flight APIs are ridiculously non-existent. I ended up scraping two different airline sites, but since it was against their terms, I never took the site any further.
I've thought of even building a simple event aggregator for some friends in the industry and they are blown away that it's possible. Then I remember how many venues are in cities like Charlotte and San Francisco and realize why these industries lag in technology. There just isn't a large pool of developers who want to solve their problems.
Do you have any projects you are currently working on?
Disclaimer: Those claims were relevant the last time I investigated (>1 year ago). It could have changed by now.
On the plus side, building out the flight tool really endeared me to hacking on things - which eventually lead me to leave my last job and co-found something new. :)