Launch from the Baikonur Cosmodrome; landing 140 km southeast of Dzheskasgan.

Following a one day solo flight Soyuz 14 docked with the space station Salyut 3 on July 04, 1974. The crew transferred into the space station and stayed there 14 days. Presumable military activities (observation of rocket bases) and some medical and biological experiments were performed. The cosmonauts exercised for two hours each day to counter the effects of weightlessness. At the time, the military nature of this mission and the station itself were not acknowledged by Soviet authorities.

Increased solar activity raised safety issues, but it was decided radiation levels were within safe limits, so the flight continued.

Experiments were described by the Soviets, but analysts presumed that much time was taken up with unreported military activities. Claims were made in the aerospace press that objects were laid out at the Baikonur Cosmodrome to photograph to test a high-resolution camera system on board. Some of the experiments the Soviets described included studies of the heart and circulatory systems in orbit, studies of intracranial pressure, monitoring of blood composition, measuring of lung capacity and inhalation/exhalation rates and the testing of a water purification system which condensed moisture from the station's atmosphere.

All objectives were successfully completed. The capsule landed within 2 km of the aim point.