Spirit Airlines has been canceling flights at a pace that far outstrips its competitors, leaving travelers stranded at airports across the country while the ultra-low-cost carrier struggles to ...

United Airlines Holdings Inc. plans to increase daily flights to 15 US cities, a move it says would potentially help stranded passengers of Spirit Aviation Holdings Inc. but could also wind up further ...

Spirit Airlines has canceled over 250 flights since Feb. 13 due to staffing shortages, but the airline is facing other issues as well.