“Skiplagging” — or booking a flight with a layover to skip the last leg of travel — is a common hack for travelers who don’t want to pay for a direct flight or who to save money on airfare to a connecting destination. Airlines contend the practice results in lost revenue for seats on planes.
Yes because even though doing it can get you put on the no fly list because they can just put whoever they want on the no fly list, it still isn’t illegal and as other commentors have pointed out all airlines need do to end skiplagging is structure their pricing differently and they will not.
They’re charging you for convenience. A time honored end stage capitalist tradition. We are but filthy peasants for them to extract capital from.