German air-carrier Lufthansa AG revealed on Thursday it will have to abandon 830 flights on Friday following the pilot strikes on short-haul and mid-haul journeys departing Germany, as current walkout and travel disorder prolongs into the third day.

Lufthansa has to again cancel about one-third of its scheduled flights and upset travel plans of more than 100,000 travelers.

Before that on both Wednesday and Thursday, the flagship carrier had to abandon almost 1,800 flights, disrupting travel plans for some 215,000 passengers on long-haul, mid-haul and short-haul flights. So in last three days, close to 315,000 travelers will be hit by the termination of 2,618 flights during the three-day strike.

Meanwhile airline has repeated its plea to the pilots’ union, Vereinigung Cockpit, to look for a solution in a negotiation process. Management board member Harry Hohmeister called the union’s demands “not bearable” for the airline’s prospect. The labor union, Vereinigung Cockpit, represents almost 5,400 Lufthansa pilots.

A Company’s spokeswoman said in a statement that the two days of pilot strikes so far cost the airline more EUR20 million. She said the airline already is under pressure in lower mid-term bookings, as customers are moving to rivals.

Furthermore Lufthansa and the pilots from its namesake brand, Lufthansa Cargo and Germanwings have been in an ongoing disagreement over employment conditions and salaries. Lufthansa, which also is faces severe competition from budget carriers, has been trying to slash expenditures by shifting pilots to lower-cost airlines within the group. Another key point of dispute is quick retirement packages for pilots.