Worries that the incident would lead to a direct clash between the two ebbed after Moscow denied the incursion and Kiev's foreign minister said he would meet his Russian counterpart in Berlin on Sunday for talks alongside the top diplomats from France and Germany.
At the market close the Dow Jones Industrial Average was down 50.54 points (0.30 percent) at 16,663.04, after earlier having shed 0.50 percent on the Ukraine news.
The broad-based S&P 500 finished off a bare 0.07 point, at 1,955.11, while the tech-rich Nasdaq Composite Index gained 11.92 (0.27 percent) to 4,464.93.