German airline Lufthansa said it was cancelling 126 long-haul and 10 shorter flights as a cabin crew strike went into its fourth day.

Passengers wait for information at a Lufthansa counter at the airport in Munich, Germany, Monday, Nov. 9, 2015.

Passengers wait for information at a Lufthansa counter at the airport in Munich, Germany. Image by (AP Photo/Matthias Schrader)

The UFO union has called on its members to walk out at three of Germany’s biggest airports – Frankfurt, Munich and Dusseldorf.

Lufthansa said the cancellations would affect 27,300 passengers.

It said nearly all German and European flights would operate as scheduled, and flights by subsidiaries such as Germanwings, Swiss and Austrian Airlines would not be affected.

Lufthansa planes sits on the tarmac of the Frankfurt, Germany, airport Monday morning, Nov. 9, 2015.

Lufthansa planes sits on the tarmac of the Frankfurt, Germany, airport Monday morning, Nov. 9, 2015. Image by (Fredrik von Erichsen/dpa via AP)

UFO wants to secure transition payments for its 19,000 members if they retire early as part of its contract dispute with Lufthansa, which is trying to cut costs.

The union rejected the airline’s latest offer on Monday, saying it constituted only a “minimal” improvement.

See also: Chaos as Lufthansa strike hits over 100k passengers

(Press Association)