The move came after China and South Korea exchanged harsh words over Yoon's comments in a recent interview with Reuters.
"The message is the same across the G7: that we want to work with China in those areas where China is prepared to work with us," a senior US State Department official told reporters on a call.
The no-fly announcement rattled regional nerves as it followed shortly after China staged new war games around Taiwan, which Beijing views as sovereign Chinese territory.
Wang made the remarks at a meeting with German Foreign Minister Annalena Baerbock, noting that China once supported Germany's reunification.
Among concerns that participants of the poll expressed toward China was the country's partnership with Russia and China’s policies on human rights.
A top Japanese government spokesperson said Japan has been following China's military drills around Taiwan consistently and "with great interest."