Spirit Airlines updated its contract of carriage with a more stringent dress code. Barefoot and inadequately clothed passengers may be denied boarding.

Rather than accept Frontier’s offer, Spirit said it will stick to its current plan to emerge from Chapter 11 bankruptcy.

Spirit Airlines takes a novel approach to baggage policy, charging distinct prices for carry-on luggage, checked bags, and even larger personal goods. Fees vary based on the route, booking type ...

Frontier Airlines said Wednesday it has again proposed combining with Spirit Airlines, which is in bankruptcy.

Spirit Airlines cut a dozen routes this week, including several seasonal spring break flights, as the airline appeared to ...