The U.K. government said on Sunday it plans to temporarily allow airlines to consolidate passengers onto fewer planes over the summer holiday season, a move aimed at preventing last-minute flight cancellations as jet fuel costs remain elevated amid uncertainties over the Iran war.

The plan would also allow carriers to give back some of their take-off and landing slots without losing them the following season, the U.K. said.

“These temporary measures would allow airlines to, for example, consolidate schedules on routes where there are multiple flights to the same destination on the same day,” the government said in a statement.

The loss of Middle Eastern jet fuel because of the Iran war is quickly becoming an acute logistics problem for Europe, according to analysts at Societe Generale.

Jet fuel prices have surged since the critical Strait of Hormuz was blockaded after the war in the Middle East began on Feb. 28.