The airline industry is a good example of an "open" market that is really anything but. It is effectively an state-supported oligopoly. Airlines have split up every major market, usually with very little competition amongst themselves, and then have a government bailout backstop if things go wrong (this include things like favorable bankruptcy laws that let them get out of wage commitments). This is without even getting into the unholy public-private airport situation.
The answer is actual competition with some reasonable passenger protections.
Let foreign carriers compete here (9th freedom rights). No bailouts for failed operations or even unusual circumstances like covid.
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