KLM cancelled dozens of flights on Monday after ground staff at Amsterdam's Schiphol airport staged a two-hour strike in a dispute over pay.
The strike was called after a deadline to reach a new pay agreement between the airline and the trade union expired on Friday.
The union’s demands include an 8 per cent pay rise spread over two years, more full-time contracts and a more regular shift rota.
On Thursday, KLM offered a 6-7 per cent pay rise over three years, which the unions rejected.

Tanker crosses Strait of Hormuz as US waits for Iran's response to peace proposal
Twelve Pakistani police officers killed in car bombing and shootout
Qatar cargo ship targeted by drone, small fire with no injuries
Passengers begin evacuating from cruise ship hit by hantavirus
UK's Starmer says his government is a ten-year project despite calls to quit
