Ryanair said Friday that it plans to stop serving Frankfurt Airport, Germany’s busiest, at the end of March. and close its base there. The budget airline said it is reallocating its five planes there to other airports that “have responded with lower airport charges to stimulate traffic recovery.”

Ryanair complained that instead of providing incentives as the aviation industry struggles with the fallout from the coronavirus pandemic, Frankfurt Airport “has chosen to increase prices even further, making Frankfurt uncompetitive with European airports.”

The Ireland-based company said that all Frankfurt-based flight crew “can secure alternative positions within the Ryanair network” and that passengers affected by cancellations would receive notifications and refunds “over the coming days.”