Ryanair has sought a meeting with the Irish Airline Pilots' Association on that day, according to The Independent.
Ryanair pilots were planning strike action for Wednesday but it has been suspended.
Trade union IMPACT released a statement this evening declaring the suspension of the strike action.
The Dublin-based airline announced on Friday that it would recognise the unions "as long as they establish committees of Ryanair pilots... as Ryanair will not engage with pilots who fly for competitor airlines".
He said there were serious concerns that Ryanair management could renege on their commitments.
Ryanair pilots in Portugal decided on Sunday to suspend their strike set for December 20 after the company agreed to recognise the unions and negotiate on Friday in a surprise decision, Portugal's Union of Civil Aviation Pilots (SPAC) said.
OR lineman changes uniform number to honor Las Vegas shooting victims
Oregon's all-time leading rusher had practiced earlier this week in Las Vegas, leading to speculation he may play. OR and Boise State will kickoff at 12:30 p.m. on Saturday. "It's something we can wipe away from OR history".
Children killed as train hits school bus
The bus was transporting students between a school in Millas and the communities of Saint-Feliu-D'Amont and Saint-Feliu-d'Avall. The French interior ministry said that 95 emergency workers are now at the site alongside 15 police units.
Weather Forecast: Light snow tonight
Wintry weather in the forecast? First off, we'll remind you that a La Niña is in place and affecting our weather patterns. In the Mid-Atlantic, we typically see a mixed bag, with the greatest variability in weather patterns through the winter.
If the strike had gone ahead it would have seen the majority of the firm's captains in Ireland walk out.
Mr Harbor said IMPACT had spoken to senior Ryanair management, telling them they were ready to meet them at any time.
The pilots had backed industrial action by a margin of 94 per cent to six per cent in secret ballots.
The airline which does not recognise trade unions, had promised to "face down" the threatened strike.
In Spain, there are no strikes planned for pilots but ground staff unions have not ruled out action on 30 December.
Bellew, whose predecessor resigned in October amid flight cancellations chaos forced by pilot shortages, said the budget airline opted for "dialogue" because it did not "want to put at risk [its] customers' Christmas".