The FCDO said the move comes due to the lack of available flight options to return to the UK and the "increased volatility" in the Russian economy.
"If you are in Russia, you should be aware that it may not be possible to fly directly to the UK, or via EU countries, and should amend any travel plans accordingly," the FCDO added. "Check the latest information with your airline or travel provider.
"UK-based airlines face having to fly for longer to reach some destinations after they were banned from using Russian airspace for overflying."
