A price cap will be placed on mobile broadband providers following a vote in the European Parliament.
MEPs voted in favour of a plan to cap the fees charged to consumers for accessing the internet while abroad.
It is hoped the price limit will negate the possibility of holidaymakers returning home to face a "nasty surprise" when bills arrive.
The mobile broadband roaming caps plan will be launched in stages and will place ceilings on the amount wholesale providers can charge for data, rather than focusing on the amount of data that can be accessed.
Welcoming the decision, Michael Phillips, Product Manager at BroadbandChoices.co.uk, said: "There have been instances where customers have download a few TV programmes abroad and come home to a bill of thousands of pounds."
The caps will start on July 1st, 2009 when a maximum of 1 (excluding VAT) will be charged for 1Mb. From July 1st, 2010 this will be reduced to 0.80 and then taken down to 0.50 from July 1st, 2011.