Important: The following is affecting Lufthansa CityLine, not Lufthansa City Airlines.
"Lufthansa plans to suspend operations of its regional airline CityLine effective immediately. The company cited rising jet fuel prices and the current strikes at the Lufthansa subsidiary as the reasons for this decision.
Previously, the plan was to shut down CityLine in 2028. However, the “current crisis” is forcing the Lufthansa Group to “implement the measure sooner,” explained CFO Till Streichert.
Accordingly, Lufthansa CityLine’s 27 operational aircraft are to be permanently withdrawn from service as early as Saturday. The jets are nearing the end of their technical service life and have comparatively high operating costs, Lufthansa announced. The measure is therefore intended to “reduce further losses at the loss-making airline.”
Source translated with DeepL: https://www.tagesschau.de/wirtschaft/unternehmen/lufthansa-cityline-stilllegung-100.html
Original source and more details: press release "Lufthansa Group Accelerates Strategy Implementation"