Great idea. Would use (flew 140 segments the year before Covid).

One piece of feedback:

I asked for a "flight from LAX to..." and it recommended flights from SNA and ONT (two other airports in the Greater Los Angeles area). These airports are easily 1.5 - 2 hours away from LAX at commute times.

I suggest that, if the user requests a specific airport (as indicated by an IATA code), you limit responses to that airport code by default, rather than broadening the search to a region.

If I had asked for a "flight from Los Angeles to..." I would not have been surprised by the current behavior (and probably would have appreciated it.)