American Airlines said Wednesday it is temporarily suspending some routes this summer, citing steep jet fuel costs driven by the ongoing U.S. war with Iran that continue to strain carrier budgets.

The Texas-based carrier said in a statement that it had adjusted service for “select routes” in August and September and that impacted travelers would be offered alternative arrangements or refunds. American attributed the moves to elevated fuel costs and said the changes were consistent with wider industry trends.

“These changes are in line with wider industry trends,” the airline said.

American stressed that it was not cutting any routes permanently and that it was proud to offer what it described as “an industry-leading network with more flights than any other U.S. airline.”

The summer suspensions add to the challenges facing travelers, who are already contending with fewer flight options and higher prices. Airlines around the world have canceled numerous flights or trimmed schedules through the coming months, and many have raised fees or cut other perks to offset rising expenses.

The suspension follows a pattern of industry-wide belt-tightening as the conflict in Iran continues to push energy prices higher. In April, the cost of jet fuel more than doubled, driving airlines including Delta Air Lines, JetBlue Airways, and Southwest Airlines to raise checked baggage fees. Air Canada suspended its John F. Kennedy International Airport flights for the summer. As covered in April, the conflict has disrupted oil markets through the Strait of Hormuz, creating a supply crunch for jet fuel that has forced carriers worldwide to adapt.