Anatoly Perminov, Russian Space Agency chief, said space officials "experienced a few tense moments," but said the crew was in good condition.
"All crew members have been recovered and they are feeling quite well," Perminov said at a news conference at mission control.
The Soyuz's different path on descent was apparently due to a computer glitch and the cosmonauts were subjected to higher than normal gravity load on their descent, Lyndin said.
A similar problem occurred in May 2003 when the crew experienced a steep, off-course landing.
Salvage crews located that spacecraft after several hours of searching.