I know three good websites selling air tickets for flights within the Republic of Sakha (Yakutia), Russia’s Far East.
One of them belongs to the agency called GAVS (a short name for Glavnoe Agentstvo Vozduzhnyh Soobshenij). Two other online shops to local air companies, Yakutia Airlines and Polar Airlines, that conduct regular regional flights.
Links to air ticket online shops:
GAVS Air Ticket Agency Website. In Russian only.
The payment system accepts all major credit/debit cards issued by Russian and international banks. I use this website mainly to check all air carriers’ flights schedule. Actually, you can use it to purchase tickets for all Yakutia-related flights provided by different air companies.
Yakutia Airlines Ticket Shop. Available in English as well.
Yakutia Airlines is the biggest air company in the Republic of Sakha (Yakutia). It conducts international, national and regional flights. A year ago website users reported that the payment system didn’t work with cards issued by abroad banks. Currently, it seems to be okey. Regular the company provides discounts. Air tickets might be also booked and purchased directly from the front page of its official website www.yakutia.aero.
Polar Airlines Air Tickets Online Shop. In Russian only.
Polar Airlines is the second air company based in Yakutsk, Russia. It operates domestic (regional) flights to all major settlements in the Republic of Sakha (Yakutia). The company has a separate online service for ticket sales. The official website PolarAir.ru does not provide online booking.
As you noted, all three websites are hosted as subdomains to Yakutia.ru that belongs to YakutAvia LLC. This is a Yakutsk-based IT company that services local airlines. So, if you forgot above-listed URLs, you might visit Yakutia.ru directly and see banners of all mentioned websites on the front page.
Have high safe flights, friends!