The airline sector is experiencing a significant rally during the current market session, with the JETS ETF up over 2%. The primary driver for this upward movement is a sharp decline in crude oil prices. This drop in oil is a direct result of news that the U.S. and Iran have agreed to a pause in hostilities, easing geopolitical tensions. Lower fuel costs are a major positive for airlines as it directly impacts their operating margins. Other contributing factors include ongoing M&A speculation within the industry and some positive analyst commentary on individual carriers.