<a href="https://www.thenationalnews.com/business/travel-and-tourism/2022/06/25/flight-disruptions-to-continue-until-2023-amid-covid-19-according-to-lufthansa/" target="_blank">Lufthansa </a>will cancel almost all flights from its German centres in Frankfurt and Munich on Wednesday because of a strike by ground crew, exacerbating disruption to Europe’s summer travel season. More than 1,000 flights will be grounded and the airline said the situation may run into the weekend, when travel schedules are likely to be busier. “The early escalation of a previously constructive collective bargaining round is causing enormous damage,” said <a href="https://www.thenationalnews.com/tags/lufthansa/" target="_blank">Lufthansa </a>labour director Michael Niggemann. The airline said the strike will force the cancellation of 678 flights at Frankfurt, 32 of them on Tuesday and the rest on Wednesday. It also is cancelling 345 flights at Munich, including 15 on Tuesday. Lufthansa said that 92,000 passengers will be affected by the Frankfurt cancellations and 42,000 by the Munich disruption. It said those affected will be contacted on Tuesday and rebooked on alternative flights where possible but warned that “the capacities available for this are very limited.” “Lufthansa will have to call off almost the entire flight programme at its hubs in Frankfurt and Munich for Wednesday,” Lufthansa said, adding that a knock-on effect on some flights scheduled for Thursday and Friday could not be ruled out. The company said the strike may still lead to “individual flight cancellations or delays” on Thursday and Friday. The walkout comes at a time when airports in Germany and across Europe are suffering disruption and long lines for security checks because of staff shortages and soaring high demand. Weeks of travel disruption across Europe have resulted in airlines and airports blaming one another for shortages and poor preparation. London Heathrow airport said on Tuesday that airlines need to hire ground staff more quickly to help to overcome persistent travel disruptions, warning that a cap on flights to ease the disruption might have to stay in place for at least another year There have also been strikes by Ryanair and <a href="https://www.thenationalnews.com/Business/UK/2022/07/26/easyjet-predicts-brighter-july-after-slumping-to-loss/" target="_blank">easyJet, </a>with more scheduled. The Lufthansa strike, scheduled to last from 0145 GMT on Wednesday until 0400 GMT on Thursday, comes as ground staff seek a higher pay rise than the one offered by Lufthansa. The Verdi union, representing around 20,000 Lufthansa ground staff, is seeking a 9.5 per cent pay rise. It also wants a minimum hourly wage of €13. The union has said management's offer so far “does not come close to compensating for inflation” which stood at 7.6 per cent in Germany last month. Lufthansa has countered that it has offered “very substantial pay increases” amounting to more than 10 per cent for workers in the lowest wage categories, and a six per cent increase for higher-paid staff.