Passengers queue in front of Lufthansa counters at the airport in Frankfurt, Germany, Saturday Nov. 7, 2015. Cabin crew at Lufthansa are staging a second day of strikes, forcing the German airline to cancel some 520 short- and medium-haul flights. The UFO union called members working on Airbus A320 and Boeing 737 planes at Lufthansa's main Frankfurt hub out on strike for 17 hours starting at 6 a.m. Saturday, along with cabin crew based in Duesseldorf, Germany. (Boris Roessler/dpa via AP) (The Associated Press)
BERLIN – A union representing cabin crew at Lufthansa is expanding a strike campaign, announcing that it will stage all-day walkouts at Frankfurt, Munich and Duesseldorf airports on Monday.