A plane believed carrying Russians involved in the U.S.-Russia spy swap landed at Dulles International Airport outside Washington Friday afternoon, Xinhua reported.
There was no confirmation on whether all the four Russians freed earlier in the day were aboard.
U.S. Justice Department confirmed Friday morning that the United States and Russia have successfully completed a spy swap in Vienna, Austria.
It was the largest spy swap between the two countries since the Cold War.
Two planes, one from Russia and the other from the United States, landed at the Vienna airport at 11:15 local time (0915 GMT) and parked side by side on the tarmac.
They took off about an hour and a half later.
Before landing in Washington, the plane had a stop in Britain.
The Russian plane was believed to be carrying 10 Russian agents who had been deported from the United States in exchange for four pardoned agents, including nuclear scientist Igor Sutjagin and three double agents.