Lufthansa is bracing for its third pilots' strike in less than two weeks.
The latest industrial action is scheduled to take place at Munich Airport on Wednesday from 0900 until 1700 local time.
It will affect all Lufthansa flights, including long-haul services, at the airport.
The strike has been called by the Vereinigung Cockpit union, which is protesting plans to change the current scheme that sees pilots retire at 55 and retain some of their pay until they reach the state pension age.
Pilots went on strike at Frankfurt Airport last Friday (see news, September 5), while a walkout the previous week saw 70 per cent of flights operated by Lufthansa's budget carrier Germanwings cancelled (see news, August 28).
In April, a three-day pilots' strike saw Lufthansa cancel 3,800 flights (see news, April 1).