Airline laws aimed at stopping would-be terrorists from leaving the UK will go before parliament next week.
The new legislation, devised by home secretary Theresa May, would target flights carrying passengers to Iraq and Syria, where Islamic State and other radical groups are based.
According to The Sunday Times, airlines would be required to provide full passenger lists to the government, so that dangerous individuals could be identified and prevented from travelling.
If it deems a certain passenger as too dangerous, the UK's interior minister will have the authority to stop a person from boarding the plane. A system would be in place to put an automatic bar on those considered high-risk.
Currently, one in five airlines refuses to provide these lists, so the government will order fines of £50,000 if they do not co-operate.
Thousands of people from over 80 countries have been recruited by extremist groups to go to the Middle East, and most recently three teenage girls from London are believed to have flown via to Raqqa in Syria to become Islamic State brides.