In a first, the US fines an airline for flight delays. Customers could get a cut.

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• The US Department of Transportation hit JetBlue with a $2 million fine for delayed flights.
• The DOT said the airline's unrealistic flight schedules were deceptive and anticompetitive.
• Half of the $2 million fine is set to go toward compensating JetBlue customers.

The Department of Transportation said on Friday that it was fining JetBlue...