Budget airlines covering Eastern Europe to Russia?

I'm travelling to Eastern Europe and I can't find a good budget airline which cover these routes- Dubrovnik- Moscow.

Apparently Sky Europe provides this but each time I try searching for February, the search comes up empty.

Any help guys?

Have you tried Ryanair.com?

I like this website as it has a few of the cheap airlines, but I see there is no Dubrovnik to Moscow, there are some other options that may help!

Fly to Cologne and from Cologne to Moscow with Germanwings. Should be around 150 to 200 EUR one-way. www.skyscanner.net will help you find cheap deals.

Alternatively you can buy a specially discounted train ticket called City Star. This is especially good value if you are travelling in a group. Do a google search for "City-Star train".