I flew back in Russia
Before the flight, it was necessary to take a PCR test for coronavirus, and receive a negative result of the COVID-19 test no earlier than three days before. In the USA, this test can be done for free at any pharmacy, but the time to get the result varies everywhere. It was necessary to make an appointment for a specific time. To be safe, I took the test at two pharmacies. At both pharmacies, the test was done without leaving the car. People drive up to the window, provide their details, and receive a signed test tube. The person then takes a sample from their nose, puts the swab back into the test tube, and places the test tube into a special box.
One test result arrived the next day, while the second one came when I was already in Russia.
At the airport, whether for domestic or international flights, no one asked for the certificate, but in both airports, a mask mandate was in place.
On the plane, everyone wore protective masks and only removed them during meals. Masks were collected every three hours.
I flew with Aeroflot. On the plane, everyone wore protective masks and only removed them during meals. Masks were collected every three hours. Those without their own masks were given new ones. Walking during the flight was not recommended. Everyone stayed in their seats, mainly with an empty seat between them. The tickets were very expensive, probably because the empty seats were included in the ticket price. 🙁
At the end of the flight, we were asked to fill out a medical declaration, which included personal details, travel itinerary, flight number, seat number, and information about when, where, and with which vaccine we were vaccinated. The declaration stated that unvaccinated passengers must take a test within three days, while those who are vaccinated should register their vaccination on the Gosuslugi portal. It also mentioned that all passengers must observe a two-week quarantine upon arrival.
Upon arriving home, I tried to enter my vaccination details on Gosuslugi (government website which helps to get official documents like passport and more), but I was unable to. Fortunately, everything turned out fine.