According to the new Post Office Worldwide Holiday Costs Barometer, Bulgarian resort costs are the sixth cheapest among the world's most popular tourist destinations. The Balkan country was fourth in the previous edition of the survey.
Spain and Sri Lanka now share the top spot for value of 42 destinations surveyed.
Falling prices in Bali and Vietnam have helped these fast-rising Far East destinations to overtake Thailand and take fourth and fifth places in the Worldwide Barometer.
The annual barometer monitors the price of eight popular tourist items in over 40 holiday destinations worldwide - including dinner for two, light refreshments and sun cream.
The prices for Bulgaria have been calculated at the popular summer resort of Sunny Beach.