Spirit Airlines, fresh from bankruptcy, is ready to take on the new Southwest, CEO says

1. Spirit Airlines emerged from bankruptcy, positioning itself against competitors. 2. Southwest Airlines will start charging for checked bags, altering its long-standing policy. 3. Spirit's pricing strategy allows it to potentially attract Southwest customers. 4. Delta Air Lines acknowledges that Southwest's changes leave customers available for competition. 5. Spirit reduced debt by $795 million during restructuring, focusing on profitability.