Key Takeaways Major U.S. carriers including American, United, Delta, and Southwest saw shares climb 3%–4% in overnight trading after a U.S.-Iran peace agreement The critical Strait of Hormuz
Shares of major U.S. air carriers surged in pre-market trading following news that the United States and Iran have established a preliminary peace framework, offering hope that the industry’s crippling fuel cost burden may finally begin to subside after a challenging 2026.
American Airlines, United Airlines, Delta Air Lines, and Southwest Airlines each posted gains ranging from 3% to 4% before Monday’s market opening. The rally came after President Donald Trump confirmed the U.S. would lift its naval blockade and allow the Strait of Hormuz to resume normal shipping operations.
American Airlines Group Inc., AAL
The strategically vital waterway has remained shut for over 16 weeks amid escalating tensions between Washington and Tehran. As one of the globe’s most crucial chokepoints for petroleum transport, its closure triggered significant increases in aviation fuel prices throughout the current year.
Brent crude futures tumbled 4.6% to approximately $83.30 per barrel after the diplomatic announcement. West Texas Intermediate contracts similarly declined. Given that jet fuel represents one of airlines’ most substantial operating expenses, any prolonged reduction in petroleum prices would provide meaningful margin relief.
The commercial aviation sector began 2026 with robust passenger traffic but has faced intense margin compression due to escalating fuel expenses. The International Air Transport Association (IATA) recently downgraded its industry profitability projections, now forecasting fuel costs will reach approximately $350 billion this year—a dramatic increase from $252 billion in 2025. This would represent nearly one-third of the sector’s total operating costs.
IATA’s Director General Willie Walsh noted that carriers have attempted to offset these pressures through fare increases and operational improvements, but acknowledged these measures would prove insufficient to match the previous year’s profitability. The association still anticipates total industry revenues will climb to $1.17 trillion in 2026.
Numerous leading U.S. airlines have already lowered their financial guidance. United Airlines reduced its full-year profit forecast, now projecting adjusted earnings between $7 and $11 per share, significantly below its earlier range of $12 to $14. American Airlines took even more dramatic action, slashing its 2026 outlook in April and cautioning that it could potentially post an annual loss.
Both Southwest and Delta have maintained their current forecasts, though executives at both carriers emphasized that achieving these targets remains contingent on fuel price trends and revenue performance.
Interestingly, while airlines stand to benefit most directly from the peace framework, they weren’t the session’s strongest performers. Technology stocks including Micron, Super Micro Computer, Western Digital, and Sandisk posted even larger gains. Mining giant Newmont also advanced as gold prices jumped nearly 3%.
According to AJ Bell investment director Russ Mould, market participants rapidly rotated capital away from oil, defense, and telecommunications holdings toward higher-beta, cyclically-sensitive sectors. Cruise line operators including Royal Caribbean, Carnival, and Norwegian Cruise Line each climbed between 3% and 4%.
The U.S. Global JETS ETF, which provides broad exposure to airline equities, had already appreciated 20% since early April before Monday’s session. United, Delta, and Southwest have each gained between 10% and 19% year-to-date. American Airlines remains modestly lower, down just over 2%.
Should the interim agreement evolve into a lasting peace settlement and the Strait of Hormuz maintain uninterrupted operations, market analysts suggest the fundamental outlook for airline stocks could strengthen considerably during the latter half of 2026.
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