Could Spirit Airlines further exploit its ULCC strategy in South Florida with new Miami flights?

Spirit's apparent discussions with Miami International over the prospects of launching service from the airport seem a bit illogical on the surface given that the carrier calls nearby Fort Lauderdale International home. But Spirit's expansion plans, coupled with the changing competitive dynamics at Fort Lauderdale during the past couple of years, might make flights to Miami plausible.

The carrier is obviously keeping any potential plans for Miami close to its chest as it charts a potential delicate course in possibly serving two airports in the South Florida market. But stripping out the sensitivities serving Miami would create, the airport fits nicely with Spirit's market strategy - an airport dominated by a legacy carrier that presumably charges higher fares.

In the ever-changing global airline market, there is a growing sense the playbooks of old are being tossed aside as market forces dictate new approaches to maximising profitability. In that sense, Spirit has to consider all options for expanding its ultra low-cost model, even it that means launching service from another airport practically in its backyard.