[DangitBobby]

Can you imagine how furious people would be if they found out their airline put them on their cheaper competitor's flights and kept the difference? Rationality be damned, they'd be out for blood. I can hear the screaming already. Good luck.

[ryanlol]

This happens every day.

[DangitBobby]

Really? How do I learn more about this?

[ryanlol]

Codeshare agreements, for example British Airways sells Vueling (budget airline) flights under BA flight numbers.