Overview

• The inquiry will examine the impact of airline mergers on competition and consumer pricing.
• Public comments on the state of airline competition are invited until December 23.
• The Justice Department has previously blocked several airline mergers, including JetBlue's acquisition of Spirit Airlines.
• Four major airlines currently dominate 80% of the U.S. domestic passenger market.
• The investigation also includes an analysis of frequent-flyer programs and additional fees.