Wind stats:
https://www.windguru.cz/archive-stats.p ... id_model=3
March, April and November look rather poor.
The rest months look better and almost the same stats of 25 days with wind 3Bf and above.
So far as i remember well I spent 40 days there and I had only one day when I was not able to foil.
My biggest kite during last two trips was 10m inflatable. However I use my large Hover board 150x55cm - it makes the difference.
Good thing is that if WG gives more than 14kts it mean it blows 24 hours and I can ride 7m Apollo.
If it shows 10-12kts it means riding on 10m all afternoon.
If it shows 5-9kts it means around two hours foiling after 4PM.
Airline.
We used Aeroflot from Berlin via Moscow twice. We paid 500€ for return flights. No extra baggage fees if you manage to pack in 23kg.
Last time we used Qatar. 700€ return.
30kg baggage allowance what was great as we packed SUP board and a bit of foilboarding gear. All together with two persons we carried 85kg including hand luggage.
Just search skyscanner and you should find many offers below 700€.