This seems like a loser to me for the airlines. Turning a flight around and inconveniencing a planeload of passengers doesn’t build any good will. And if the airline sues the culprits for the cost of fuel and crew time, they’re likely “judgement-proof”.
https://onemileatatime.com/news/united-airlines-flight-diver…
Are those maskless Canadians still in Mexico, or did they find a flight home?
https://www.nytimes.com/2022/01/07/world/canada/montreal-can…
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