Striking workers of the publicly-owned Kuwait Airways threatened on Sunday to expand their industrial action demanding pay rises that has already resulted in several flights being cancelled.
The airline's employees, who began their strike late on Saturday, are demanding a raise of 30 percent.
Signup to our newsletter and follow us on Facebook and Twitter!
The government in the oil-rich Gulf emirate has just granted rises of 25-percent to officials and employees of state enterprises.
A Kuwait Airways statement published by the official KUNA news agency said the strike had resulted in a dozen flights being cancelled on Sunday morning, and a further nine later.
"If the cabinet meeting today (Sunday) does not satisfy our salaries demand, employees of the company will prevent the flights of other airlines from taking place," a trade unionist with Kuwait Airways warned.
Meanwhile, customs service employees on Sunday continued a strike begun last week that has already begun to affect the delivery of fresh produce. The prices of fruit and vegetables have already risen by 15 percent, consumers say.