Jet fuel supplies are under threat from the ongoing conflict in the Middle East, with oil executives warning that the disruption could lead to real shortages in key markets.
The situation is particularly concerning for Europe and Asia, where summer travel demand is expected to surge.
Ryanair's CEO has previously warned that European airlines could face "real failures" if fuel prices remain high.
Exports from the Persian Gulf, a major source of jet fuel, have been significantly impacted, raising alarms among industry leaders.
The market reaction has been swift, with energy prices reflecting heightened concerns over supply chain vulnerabilities.
This development adds to a growing list of challenges for the aviation sector, which has already been grappling with elevated fuel costs since the start of the conflict.
Ryanair's CEO has previously warned that European airlines could face "real failures" if fuel prices remain high.