The more frequent services will operate between Edinburgh and Barcelona, Alicante, Brussels, Gdansk, Krakow, Malaga, Malta and Palma. Flights to Stansted will also be stepped up, from four to five a day.
The airline will compete with SAS, Norwegian and EasyJet to the Danish capital. An extra weekly flight between Glasgow and Riga has also been announced.
Ryanair expects its Edinburgh passenger total to grow by 12 per cent to 2.3 million a year – nearly a quarter of those using the airport.
Chief executive Michael O’Leary signalled further new routes from Edinburgh and Glasgow for winter next year.But he said growth at Prestwick depended on air passenger duty being cut in 2018 as planned.