Southwest Airlines on Tuesday said it will charge customers $35 for one checked bag and $45 for the second, bringing an end to the airline's free luggage policy.

The Wall Street Journal first reported the news Tuesday.

Southwest was the only major U.S. carrier that allowed customers to check two bags at no cost.

The Dallas-based airline had said earlier in March that it would end its "bags fly free" policy by charging some customers, as the company's lackluster earnings have fueled pressure to revamp its business model.