A campaign has been launched which aims to show a red light to increases in the Air Passenger Duty (APD) airport departure tax.
APD increased just last November and there are plans to raise it again next year.
The campaign, organised by airline and airport groups, comes in light of a survey which found three in four people oppose any further hike in APD.
As part of the campaign, activists wearing T-shirts which read "Hands off our holiday, Mr Taxman" have been handing out leaflets at a number of airports across the UK.
They say that with families already struggling to afford holidays given the high cost of living, plus the need to pay out for other holiday essentials like travel insurance before jetting off, another increase in APD would add an extra burden on passengers.
The campaign is backed by the Airport Operators Association (AOA), the Board of Airline Representatives in the UK (BAR-UK), and the British Air Transport Association (BATA), and AOA chief executive Darren Caplan said: "APD has already gone up by 325% on long-haul flights and 140% on short-haul flights in the last five years.
"Our message to the Chancellor is that enough is enough."
© Press Association 2011