Union Unite is ramping up pressure at Edinburgh Airport,
The union confirmed dates for a strike over Christmas and New Year which could heavily impact holiday flights.
Tanker driver members working for North Air are in dispute over pay.
The workers will take continuous strike action over 19 days.
The strike action will begin at 05:00 on 18 December and continue each day until 04:59 on 6 January 2025.
Unite warned last week that North Air had to make an improved pay offer if strike action was to be avoided.
It says efforts to resolve the dispute has been met with a refusal to re-enter pay negotiations with the union.
The pay dispute relates to a rejected 4.5% pay offer by the company.
Unite members overwhelmingly backed strike action
Sharon Graham, Unite general secretary said: “North Air is a highly profitable company that can fully afford to make a fair offer to our members.”
North Air provides refuelling services for domestic and international airlines at Edinburgh Airport.
