Everything you need to know about your passenger rights with SAS under EU Regulation 261/2004.
You are entitled to between 250 EUR and 600 EUR per passenger if your SAS flight is delayed more than 3 hours on arrival. The amount depends on the flight distance: 250 EUR for short flights (<1500 km), 400 EUR for medium-haul (1500-3500 km), and 600 EUR for long-haul (>3500 km).
Yes, according to a ruling by the Court of Justice of the European Union, a strike by the airline's own staff (such as SAS pilots or cabin crew) usually entitles passengers to compensation, as it does not qualify as an extraordinary circumstance.
You can file a claim directly via the SAS website, but they often deny initial requests. The fastest route for Swedish travellers is to use a service like ERN that automates the evidence and, if necessary, escalates the case to ARN (Sweden's national dispute resolution body).