Skripal, 66, a former colonel in Russia’s military intelligence who betrayed dozens of agents to Britain, and his daughter Yulia were found unconscious on a bench in the southern English city of Salisbury on March 4.
Britain has accused Russia of being behind the nerve agent attack and Western governments including the United States have expelled more than 100 Russian diplomats. Russia has denied any involvement in the poisoning and retaliated in kind.
The Skripals were in a critical condition for weeks and doctors at one point feared that, even if they survived, they might have suffered brain damage. But their health began to improve rapidly, and Yulia was discharged last month.
“It is fantastic news that Sergei Skripal is well enough to leave…