Increased consumer confidence in the economy is boosting holiday bookings, according to a survey of more than 5,000 people.
The proportion of those who think the economy will improve has gone up from 13% in a similar poll in March to 26% now.
The number who did not think the economy would improve has fallen from 52% to 30% over the same period, the survey led by foreign currency company First Rate Exchange Services showed.
The poll showed this optimism had resulted in 40% of those intending to take a holiday over the next few months having already booked their break, while 19% have booked a second trip.
More than half the would-be holidaymakers intend to take a foreign break next year, while 20% of the bookings made so far are for the June-August 2014 period.
This summer 2014 period is also accounting for 31% of second holidays.
The holiday confidence index poll, of 5,194 UK adults, was conducted by First Rate in association with the Institute of Travel & Tourism, the University of Wolverhampton and YouGov.
Overall, fewer than half (44%) who intend to have a break over the next few months are planning to restrict themselves to just one holiday, with 22% planning three or more breaks - an increase on the March 2013 three-or-more figure of 17%.
Just 14% of those surveyed were planning fewer holidays abroad, compared with 18% in March.
Sounding a note of caution, more than half those polled planned to restrict holiday spending to the same level as in the previous 12 months.
Around 90% have already decided where they will holiday, with the eurozone remaining the most popular destination region - and they also know when that holiday will be taken.
Of those not planning a trip, 13% said they had no time for a holiday, while 74% cited other financial priorities as the major constraint on taking a trip.
First Rate Exchange Services business decisions head Alistair Rennie said: "The new index reveals a growing stability for the overseas holiday market.
"Given the relative optimism about economic recovery expressed by respondents, there is good reason to be cautiously positive about the outlook for the coming year."