The rendezvous mission is one of the most useful and interesting in aerospace industry. Working together of multiple Unmanned Aerial Vehicles (UAV)s with limited space can cause the damage to UAVs. This research presents Unmanned Aerial Vehicle (UAV) rendezvous method that can approach UAV to another UAV with minimum displacement between them while they are moving. This rendezvous method is guided by Line-of-Sight (LOS) guidance law. The mission is guiding the UAV to join the route of another UAV to the end of mission with minimum displacement and without collision between them. Aerial Information and Robotics Simulation or AirSim which is working on Unreal Engine 4 software is presented. The positioning of UAVs is provided by Global Positioning System (GPS) sensor on both UAVs.