In the context of EU/UK 261 compensation in 2026, whether a strike is an "extraordinary circumstance" depends on who is striking. If the strike involves the airline's own staff (pilots, cabin crew, or airline-employed engineers), it is not considered an extraordinary circumstance; the airline is deemed responsible for its labor relations and must pay compensation for delays over 3 hours. However, if the strike involves third parties over which the airline has no control—such as airport security, air traffic controllers (ATC), or ground handlers not employed by the airline—it is classified as an extraordinary circumstance. In these cases, you are not entitled to the cash compensation (up to €600), but the airline is still legally obligated to provide "Duty of Care," including meals, refreshments, and hotel accommodation if an overnight stay becomes necessary.