“The aviation industry has warned the 4.5 million travellers flying from UK airports over the Christmas season to monitor their alcohol consumption or face severe penalties.

The One Too Many campaign, supported by 13 airports, including London Heathrow, Liverpool John Lennon and Belfast International, asks passengers to behave responsibly and stresses that rowdy or difficult behaviour will not be tolerated.
Airports who participated in a similar summer campaign, MAG (Manchester, Stansted and East Midlands), Newcastle, Birmingham, Bristol, Gatwick and the AGS Airport Group (Aberdeen, Glasgow and Southampton) are participating this winter.
Heathrow, Liverpool John Lennon airport and Belfast International are joining to bring the total number of airports participating to 13.
The original campaign ran for ten weeks from July 27 to remind passengers that they could be denied boarding, face fines of up to £80,000, or jail for serious disruptive incidents.
A new ten-week social media campaign inlcudes revamped campaign imagery aimed at those flying home for Christmas, making the most of the ski season or jetting off in search of winter sun.”

Read further from TravelWeekly (UK, December 2018)
Campaign by UK Travel Retail Forum, IATA,