The European launch services provider Arianespace — in conjunction with the European-Russian Starsem company — conducted the launch of a Soyuz 2.1b/Fregat-M rocket from Baikonur Cosmodrome in Kazakhstan with 34 OneWeb space-based internet satellites.
The mission launched from Site No. 31/6 at 16:42 EST (21:42 UTC) in an instantaneous launch window. The mission lasted 5 hours 52 minutes, with deployment for all 34 satellites taking over 3 hours 45 minutes to complete.