Canada, France, Italy and Greece have allowed an aircraft carrying Israeli Prime Minister Benjamin Netanyahu to overfly their territory, despite the International Criminal Court's arrest warrant against him.

The decision by the four states touches a question that sits at the intersection of aviation and international law: what obligations do states owe when an ICC-indicted official crosses their airspace en route to a third country?

Under the ICC's framework, the 124 states party to the Rome Statute are obliged to execute arrest warrants issued by the court. That obligation, however, collides with long-standing conventions governing civil aviation, under which overflight — unlike a landing — does not ordinarily place a passenger within a state's jurisdiction in any practical enforcement sense.

For the airlines and route planners involved, the distinction matters. A state that permits overflight but would be compelled to act on a landing creates a routing constraint: aircraft carrying the Israeli premier must avoid technical stops or diversions within Rome Statute jurisdictions prepared to detain him.

Canada, France, Italy and Greece are all Rome Statute parties, which makes their overflight clearances a test of how signatory governments interpret the scope of their cooperation duties. None of the four treated the warrant as a bar to granting transit.

The episode echoes the broader pattern that has followed the ICC's warrant: states have weighed their treaty obligations against diplomatic and alliance considerations, and outcomes have varied by government. Where a head of state lands, rather than where the aircraft tracks, has emerged as the operative line.

For flight departments and diplomatic missions planning such movements, the practical consequence is a map of jurisdictions to avoid as alternates and refuelling points, and a growing reliance on direct routings between states that have signalled non-enforcement.

How other Rome Statute parties respond to comparable requests in the future will determine whether that line — overflight permitted, landing contested — hardens into practice.