Eighteen thousand HolidayExtras.com customers responded to the travel add-on providers' airport survey.
"I am delighted that the hotel should get such great recognition. The team, as in any hotel, work really hard and will be thrilled to be voted the best airport hotel," added Crowne Plaza general manager Nick Campbell.
Sheraton Heathrow general manager Andrew Huxstead added: "The is thrilled to be recognised. We aim to give our customers the best service and comfort, along with helping to streamline their travel experience whilst travelling through one of the world's busiest travel hubs."
For the full results, visit the Holiday Extras website here >>
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