Nearly two-thirds of workers book their holidays while in the office, according to research.
Nearly three-quarters (72%) of the 1,000 people polled researched their holiday options at work, while 63% booked a break in the office.
More than three-quarters (78%) admitted using office facilities to prepare for their holidays, with the printing of travel documents the most common use.
The OnePoll survey for tour operator Cosmos also found that nearly a quarter (24%) spent more than one working day each year researching and booking holidays.
Fridays emerged as the most popular day for booking holidays at work, with Mondays the second most common day, the poll found.
Escapism was the most common reason given for researching and booking holidays at work (62%), followed by the convenience of using work facilities (34%).
Steven Seddon, of Cosmos, said the results showed a strong desire from workers to break up their daily routine by planning escapes from work.
He said: "Holidays are the ultimate escape and it makes sense that people are keen to search for them during their daily working routine."