Spirit, Frontier offer steep air travel discounts in Black Friday dogfight

A Black Friday airfare dogfight appears to have broken out between rival discount carriers Spirit and Frontier airlines, as both announced Friday they are briefly selling one-way tickets for $30 or less under for cold weather travel.
Spirit and Frontier, a multi-time Spirit acquisition suitor, also said members of their loyalty programs can get lower prices than the ones advertised for non-members.
The offers are a continued test of the airlines’ low-price business models which are designe