The business reporter is Dearbail Jordan.
The German airline said it will suspend flights to the Ukrainian capital of Kyiv from Monday due to fears of a Russian invasion.
The airline said it will stop flights to the port of Odessa.
The safety of our passengers and crew members is our top priority.
Last week, the Dutch airline said it was suspending flights. The flights will operate on Sunday before the suspension takes effect on Monday. They are expected to stay in place until the end of February.
Germany's Foreign Office urged its citizens to leave Ukraine. If there is a Russian attack on Ukraine, the options for assisting German nationals are very limited.
It continued to monitor the situation closely and is in close contact with national and international authorities.
Affected guests will be informed and rebooked on alternative flight connections.
Every week the airline operates 74 flights to Ukraine under its Lufthansa banner or other carriers it owns, which include Austrian Airlines, Eurowings and Swiss.
The airline said it would continue to fly to Lviv.
According to Mr Johnson, there is evidence that Russia will launch an invasion that will encircle Kyiv.
The plan has begun in some senses, he said.
Last week, Wizz Air said they would continue to fly to the country. Wizz Air is the second largest airline that flies between Europe and Ukraine.
Last week, the chief executive of Ryanair said it was important not to panic.
Is it our duty and obligation to support the people of Ukraine if there is no war?
British nationals should leave while commercial options are still available, according to the UK's Foreign Office.
In the event of a military incursion, it is likely that commercial routes out of Ukraine will be disrupted and roads across the country will be closed.