SYDNEY, Oct. 31 (Xinhua) -- Australia's airline Qantas planes will be back in the air some time on Monday afternoon after Fair Work Australia (FWA) ruled to terminate Qantas industrial action, local media reported on Monday.

Tens of thousands of passengers have been stranded in Australia and round the world over the weekend since the airline grounded its entire fleet on Saturday.

After a 15-hour hearing in Melbourne, FWA handed down its decision to end all industrial action by the airline and unions, saying it was acting to prevent significant damage to the tourism and airline industries, the Australian Broadcasting Corporation ( ABC) reported.

The ruling means the airline and unions have 21 days to reach a settlement.