@patson,
The airport is in the master csv, but it's not in the game.
It's not appearing on the cities pax distribution either, the cities are there, it has demand, runway files are also ok, IDK why it's not being generated, everything seems fine.
I've had to add it trough the additional csv, together with the missing 90k Nampa city.
I can make a PR if you want to brute force add it instead of finding the problem.
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Next time, please include the airport link
https://en.wikipedia.org/wiki/Boise_Airport2 runways, 1 with 10k feet, ~3mi yearly pax mov.