Icelandair's A321LR plane has 187 seats in two cabins: 165 in economy and 22 in "Saga Premium." Saga resembles premium economy, featuring large reclining seats with privacy wings, a legrest and ...
There is plenty of seating, lighting ... passengers cannot invite a guest in any case, nor can Saga Premium passengers with Icelandair. The airline’s Saga gold and silver members can, though.