[vbordo]

I've always wondered how flight search sites develop a system for such a difficult problem with minimal API options and Google limiting access to QPX. There seems to be a lot of data fragmentation in the travel industry too. How do you automate under those constraints? Are there good alternatives to QPX?

[beatthatflight]

Not easily. Sometimes just doing manual-esque queries using selenium(!).

There are rate limits on a lot of tools/APIs as well, so if I can narrow my search boundaries quickly with some hand tweaking, it helps a lot.