Booked a return flight from Bangkok - Khabarovsk (Russia) - Bangkok in January 2020.
Arrived to Russia for 13 days holiday with my wife and ONE YEAR OLD BABY.

3 days prior to our flight back to Bangkok, I receive an email says that my flights is cancelled, NO options were given, NO other routes were offered, No date's changes were offered. JUST NOTHING.

Customer service never helped, Whenever we call them they just use a very rude tone and hang up the phone, like they are doing us a favour. They just refused to refund us our money and ripped us off. S7 is supposedly the biggest airline company in Russia, they are nothing like that but a fraud company, Taking people money for a service of transportation which they do only half of it and leaves you in a country of theirs at your own.

You pay them for a certain service which you will never get!
AVOID S7 even if they offer a discounted fare! just AVOID THEM!

I used this company a couple of times in 2014-15. Airplanes are old, not well groomed, maintenance leaves much to be desired.
Money for canceled flights has to wait several months. I do not advise you to use this company

S7/Siberian Airlines is a heaven’s sent for being the largest domestic airline in Russia and it also has some international flights.
They do tick all the boxes for me and have the basics but the reason I am not giving them 5 stars is because of the delays I had and it wasn’t just once, on the other hand they have been very good at issuing vouchers however with my last flight that was cancelled due to recent events instead of refunding me the money on my account as promised along with another voucher no they issued me a voucher worth of something like £300 to use which is fine since I am planning to return to Russia but they have not consulted me to talk about it and some people probably would have preferred to get their money back on their accounts and use it for other things.

Bought tickets for S7 flight via travel2be.com. Shortly after S7 cancelled the flight. The agent (travel2be.com) could not be reached by any means, nobody answers the phone or replies to emails. The airline reply to this is "it is your problem". They cancel the flight, they sell the tickets via agencies that cannot even pick up the phone, and the passenger has to suffer. They do not even want to receive the documents via email; instead they insist on etickets to be printed and sent to Russia via snail mail. Really nice customer service, S7.

I bought a fully refundable ticket. Then COVID came in. As per the agreement with this airline with terms and conditions sitting in the ticket, S7 is obliged to return the money. They didn’t. They offer vouchers for fully refundable tickets but no money.