The new routes will be operated twice a week to Copenhagen from April 1 and Corfu from June 2.
Meanwhile, the recently introduced Paphos winter service will be extended into next summer.
The new routes will mean the airline is operating a total of 131 weekly flights on 34 routes from the airport next summer.
Liverpool airport director of aviation development Paul Winfield said: “These routes will be popular for passengers from across the North West of England travelling from Liverpool John Lennon airport.”
