Spanish airline Iberia has cancelled hundreds of flights due to fresh pilot strikes on Monday and Wednesday in protest at plans to launch a new, low-cost carrier.
More than two hundred short- and medium-haul routes have been scrapped.
Iberia pilots believe management will hire pilots for the no-frills Iberia Express on much lower salaries, which will eventually threaten their own jobs.
The new unit will start flying from April.
The company says the move is necessary to compete against low-cost rivals Easyjet and Ryanair, as well as high-speed trains.