It would take some time for the British Airways flights to return to normal after a pilots strike this week. The company has warned passengers of further disruption: the strike left aircraft and crew in the wrong place.
Dozens of BA flights have been cancelled, disrupting the plans of tens of thousands of travellers.
A planned five-day strike by Ryanair's Spanish pilots will go ahead this month after mediated talks were unsuccessful, a spokesman for the Spanish pilots union SEPLA said on Tuesday.
Cabin crew are to strike at 13 bases across Spain for 10 days in September in a dispute over job cuts. A walkout in Portugal began on Wednesday.
Ryanair pilots in Ireland to strike after talks fail
In another setback for Ryanair, its pilots in Ireland have voted to strike unless they're given a pay rise.
Across the city, protesters blocked roads, started fires at police stations and threw a Chinese flag into Victoria Harbour.
Hong Kong police fired tear gas at protesters on Monday as a general strike plunged the Asian financial hub into fresh chaos.
The strike was called by the Verdi trade union under the slogan "no more discount on our incomes."
Women across Switzerland are going on strike on Friday to demand more "pay, time, respect" as the gender pay gap hovers around 20%.
SAS reaches deal with unions to end week-long pilot strike
SAS pilots went on strike on Friday as wage talks broke
down, grounding around 70 percent of the airline's flights and
hitting some 170,000 people over the weekend alone.
Thousands marched across France to protest cuts in public sector and demand better living conditions.
The 48-hour strike action is schedule to start just after midnight on Sept. 30.
World tourist attraction the Eiffel Tower closed again on Thursday due to a dispute between workers and management
Low-cost airline suffers worst week of stoppages in its three-decade history