a paid or privilege-based service that airlines offer to passengers (business class, frequent flyers, paid upgrade) granting them the right to get on the plane before the general boarding groups, avoid long lines, get guaranteed access to overhead bins, have more time to settle in their seat, and, if there’s no specific seat assigned, have the right to choose the one they prefer, tasuline või muudel privileegidel põhinev teenus, mida lennufirmad pakuvad reisijatele, andes neile õiguse minna lennukile enne teisi reisijaid