They probably just have an SSRS report that prints out in a few dozen offices automatically on some schedule.

I'm not trying to be pedantic but this is table stakes stuff. I know we're supposed to shy away from saying things like this but compared to the other engineering that airlines have to do, this is easy. It costs - at most, including wages - a few tens of thousands of dollars yearly to come up with these figures. It's a fraction of the salary of one United Airlines BA.[0] This cost might go up if one of the senior developers convinces their boss that this needs to be a machine learning model but unless they're resume pumping it's going to be at most PCA and a regression.

This is not a team of people working for months on this one thing.

[0] https://www.glassdoor.com/job-listing/analyst-revenue-manage...