I have posted quite a few very long range paper airplanes. For launches a few feet off the ground, the Skyknight, Skydragon, Banshee , Panther, Hammerhead and Harrier. For high launches (like off a tall building), the Skystreak, Skycruiser, Skyrocket, Buzzard, OmniDelta, Strike OmniDelta, Super OmniDelta, Scimitar, Skylark and most any other flying wing I've posted would be suitable for long range flights. There are quite a few to choose from, but in the first list, aerial performance is basically the same, its other characteristics that change. On the second, the planes are designed differently, but ultimately achieve roughly the same ranges, just at different speeds. 
The ..  ....

one of your profile pics is keyboard cat