So far you can check in for a flight only at the airport of departure at the airline's check-in desk. The online check-in service is temporarily unavailable.
Before departure, be sure to check the latest information regarding travel abroad and entry/return to Ukraine on official resources, e.g. on the website of IATA (International Air Transport Association) or on the official websites of the country of your trip.
In case of discrepancy between the rules of entry to the countries on different resources, the priority is the information posted on the official website of the destination country.