Many different parties help keep flights on schedule, from airport staff to airline crews to air traffic controllers. When calculating compensation under EU Regulation EC 261/2004, the airline is generally responsible for delays unless extraordinary circumstances apply.
To claim compensation under EU Regulation EC 261/2004, your plane must arrive at your final destination at least three hours late. The calculation is based on your scheduled arrival time at the destination airport and the actual arrival time, defined as when at least one aircraft door is opened.
Flight delay compensation under EU Regulation EC 261/2004 also depends on travel distance. If your journey is over 3,500 km, you may qualify for the highest level of compensation. More details are provided below.
For delays of over two hours on eligible EU routes, the airline must provide care and assistance under EU law. For US domestic flights, assistance such as meals or hotel stays is generally provided according to airline policy, not federal law. You typically cannot claim financial compensation for delays under three hours, even if departure was significantly delayed.