Virgin Atlantic is levering up its balance sheet to pay out cash to Delta, in a complicated transaction that worries U.K. regulators. The airline is mortgaging London Heathrow slots for $330 million to pay out dividends.

​  Virgin Atlantic is levering up its balance sheet to pay out cash to Delta, in a complicated transaction that worries U.K. regulators. The airline is mortgaging London Heathrow slots for $330 million to pay out dividends.  

Virgin Atlantic is levering up its balance sheet to pay out cash to Delta, in a complicated transaction that worries U.K. regulators. The airline is mortgaging London Heathrow slots for $330 million to pay out dividends.