The trip from JFK-KEF was uneventful other than the fact that I requested for my monitor to be reset twice to no prevail. It was our trip home from CDG that made it the worst trip ever. After everyone boarded the plane we were told to take all our belongings and get off because of some problem with the plane. We waited for 1hr to find out flight was cancelled and we needed to pick up our baggage. Only problem was no one told us which carousel to go to and of course we waited another 1hr before we saw the luggage coming out. No one from Icelandair could be found; instead they sent us to the Alyzia counter to book another flight home. We weren't given any information other than that we would have to stay the night there. After staying 24 hrs at the airport we finally booked a flight that was departing in 1hr only to find out that we weren't allowed to check in at such short notice. All in all we waited at the airport for nearly 48 hrs without anyone ever giving us any information.