United Airlines' denied boardings plummet after passenger dragging incident

United Continental Holdings Inc on Tuesday posted a 79 percent year-over-year decrease in involuntary denied boardings in May and an 88 percent decrease in the month of June.

This came after the airline implemented measures to improve customer service following the physical removal of a paying United passenger in April.

United also posted earnings of $2.75 per share, compared with analysts' consensus estimate $2.67.