Spirit Airlines filed a regulatory complaint this week against two rival airlines, according to media reports. On Tuesday, Spirit formally filed a complaint with the U.S. Department of ...

Charles Robinson, 23, had missed his chance to board Spirit Airlines' Flight 2145 in Detroit -- and then got into an argument with the customer service agents when they wouldn't let him board late ...

Spirit Airlines Urges US to Reject JetBlue, ... JetBlue and Spirit scrapped a $3.8 billion merger agreement after a U.S. judge blocked the deal on anti-competition concerns.

In the 12-page filing, Spirit argues that the agreement between JetBlue and United has the same competitive concerns as the now-defunct Northeast Alliance between American Airlines’ and JetBlue ...