On April 20, US-listed airline stocks faced renewed selling pressure as crude oil prices rebounded amid escalating tensions between the US and Iran. Brent crude surged 8% to approximately $97.50 a barrel, while US benchmark crude rose 7% to $89.71 a barrel. This increase follows a period of declining oil prices, which had previously dropped to levels seen during the early stages of the Iran conflict. As a result, Delta Air Lines shares fell 1.6% to an intraday low of $70.59, and American Airlines Group saw a significant 6% drop to $12, erasing gains from the previous trading day. Other airlines, including United Airlines and Southwest Airlines, also reported declines of about 2%. The aviation industry is particularly vulnerable to fluctuations in oil prices, as fuel constitutes more than half of their operational costs. The geopolitical situation has intensified following accusations of ceasefire violations between the US and Iran, further impacting market dynamics. Investors are urged to seek professional advice before making investment choices.