Thanks! And yes, you're right, Kagehitokiri, I was thinking about APIs in terms of "application program interface" -- really, the ability to import into one program some of the data and functionality of another program. For instance, if you ever see a website with a Twitter feed on it, that's built through an API.
I was hoping someone was feeding companies like ExpertFlyer and KVS the airline data they use through an API that I just wasn't finding, but from your posts, it appear that that's probably not the case. I guess I'll write ExpertFlyer and ask how much it would be to just purchase the award seat data, though I'm sure you're right that it will be expensive. If anyone has any other ideas, I'm open to them!
Thanks,
Hannah