The code words will stop partners being aware of an impending proposal
Air passengers who plan to propose to partners on Valentine breaks can give a code phrase to staff to stop the ring being revealed in security searches.
Manchester Airport says romantic surprises have been spoilt in the past when the ring was pulled out as staff rifle through bags.
Now passengers who say "Be my valentine" will be whisked away for a private search.
They will be taken behind a screen so the hidden ring is not revealed.
Security 'not compromised'
Mike Fazackerley, Manchester Airport's director of customer services and security, said: "Our security staff are more than happy for passengers to use the secret phrase especially if it avoids ruining a romantic proposal they had planned.
"We want to make all of our customer's journeys easier but also to ensure our high standards of security are not compromised."
The airport aviation procedures document has had a temporary clause added until Monday - the day after Valentine's day.
It states: "Aviation security officers at outbound control are to inspect passenger hand baggage behind the privacy screen if given the code words 'Be My Valentine' by the passenger at the point where he/she is advised that further baggage inspection is required."
The airport is advising passengers that all of their carry-on items may be subject to inspection by staff.