Cosmonauts:
    Georgi S. Shonin [1], Commander
    Valeri N. Kubasov [1], Flight Engineer
Backup:
    Vladimir A. Shatalov
    Aleksei S. Yeliseyev
Launch:
    Date: 11 October 1969
    Time: 11:10 UTC
Landing:
    Date: 16 October 1969
    Time: 09:53 UTC
Duration: 4 days, 22 hours, 43 minutes
Call Sign: Antei (Anteus)

The main objective of Soyuz 6 was to perform experiments with space welding (Kubasov). There was no EVA's on this flight as there were no pressure suits aboard.

Soyuz 6 also observed the maneuvvers of Soyuz 7 and Soyuz 8. At one point, a total of 7 cosmonauts were in orbit.