"This reaction of Russia is absolutely incomprehensible," the Austrian Ministry of Foreign Affairs said in the first reaction.
Minister of Foreign Affairs of Austria, Alexander Schallenberg, asked Russia for clarification and to stop, as he said, "artificially creating obstacles in free air traffic between Russia and Europe".
Turkey's national flag carrier Turkish Airlines maintained its leadership in Europe with 729 daily flights on Wednesday, the European Organization for Air Navigation Safety (Eurocontrol) said on May 27.
According to a flight traffic report prepared by Eurocontrol, Turkish Airlines was followed by Air France, Lufthansa and Ryanair with 467, 386 and 368 flights, respectively.
Turkish Airlines on May 20 marked the 88th anniversary of its foundation.
Turkey's flag carrier started operating with a fleet of five aircraft and a seating capacity of 23 in 1933, according to a company statement.
Now the company flies to 127 countries with a modern fleet of 365 aircraft, it said.
Multiple international airline companies cancel flights to Israel
The airline company wants to cash-in on returning travellers