Ctrip.com, China's biggest online travel agency, has already sought to capitalise on the surge in interest, arguing this week that a summer holiday in Britain could now be a third cheaper, helping UK searches on its app triple.
The company put out flyers with a dancing, winking figure in a Union Jack T-shirt, under the slogan, in Chinese, "Brexit: travel on the drop", in reference to the weaker pound. In the background, a weeping figure in a European Union flag waves "bye".
In the United States, online portals also reported a surge.
On June 24, as the result of the Brexit vote came through, Priceline Group's Kayak said it saw a 54 per cent increase in US searches exploring fares to the United Kingdom, compared with other Fridays in the month of June.
Flight searches from the UK for US travel also rose 46 per cent, according to Kayak.
"Americans may want to secure a great fare, while British may be worried that higher fares will soon hit the market," said Billy Sanez, vice president of marketing and communications at FareCompare.com, which analyses airfares.
Search site Travelzoo saw a 35.3 per cent increase in travel searches from the US to the UK from June 24 to June 27, and StudentUniverse, a travel booking site popular among young people, saw searches for flights from the US to the UK double from a year ago.
"(People) are changing their mind and choosing to visit Britain, because with the depreciation of the pound it's cheaper for them to go there to buy things," said a senior executive at Beijing Utour International Travel Service.
He said the company was applying for more airline seats to accommodate tour bookings.
Read more:
• How Brexit could affect travel
• Gibraltar on travel radar after Brexit
• Winston Aldworth: Bright side of Brexit
- AAP