Striking workers at St. John's International Airport will hold a silent vigil on Monday to recognize the six-month mark of their strike.

In a statement Sunday, the Public Service Alliance of Canada workers, along with their supporters, plan to gather at the terminal at 12 p.m. to appeal to airport authority CEO Keith Collins and the board of directors to bring an end to the strike.

Earlier this month, federal mediator Barney Dobbin decided not to bring the two parties back to the bargaining table after no progress was made.

About 85 workers have been on strike since Sept. 11, 2012.

Neither the union nor airport management have commented on the status of recent negotiations because of a media blackout.

PSAC has been pursuing a wage package that would bring its members salaries in line with what similar staff earn at larger airports, including Halifax.

But the airport authority has called the union's wage demands excessive, saying that PSAC's original proposal amounted to an increase of about 58 per cent over four years.

The striking workers handle a variety of duties, including equipment maintenance, fire services and runway clearing.