A Flying wing does not have the trim drag penalty of a conventional aircraft[^1]. It also doesn’t need to carry the extra weight of the tail, which could increase the payload of the aircraft. [^1] The optimal lift distribution for a flying wing with winglets is not elliptical.[^2]
Hang Glider Aerodynamics
B-2 Spirit
B-21 Raider
Westland-Hill Pterodactyl V