EU compensation for cancelled flights is all of that plus a monetary sum: https://europa.eu/youreurope/citizens/travel/passenger-rights/air/index_en.htm#compens

EU compensation for cancelled flights is all of that plus a monetary sum: https://europa.eu/youreurope/citizens/travel/passenger-rights/air/index_en.htm#compensation-cancellation-1 https://europa.eu/youreurope/citizens/travel/passenger-right... edit: though there is an extraordinary circumstances exception below. I'm not sure if this would qualify as that given that it's a combination of an adverse weather event and a technical system collapse.