Irish-based regional carrier CityJet is to supply five Bombardier CRJ1000s to Lufthansa under a wet-lease agreement.
The 100-seat aircraft will be based at Frankfurt from the end of March and operate European services for the German flag-carrier.
CityJet says the agreement, covering the summer season, will run to October.
Last year it operated services for Lufthansa and group sister carrier Brussels Airlines, deploying a pair of aircraft to each.
CityJet says the agreement brings to 17 the number of aircraft it has under contract with Lufthansa Group and Scandinavian operator SAS.
