This May, the average trivago online room rate in Boston, despite a dip of (−6.4%) from last year, hit $380 a night, making the city the most expensive destination among the top-25 U.S. hotel markets. New York takes the second place in May with an online room rate of $359, after a drop of (−3.2%) from a year ago. In Washington D.C., the online room rate in May is growing (+6.7%) from last year to $350 a night, ranking the city in the third place of the most expensive destinations in the United States. At the bottom of the list, the three least expensive, or most affordable, cities to visit this May are: Salt Lake City recording a trivago online ADR of $130 a night after a (+0.8%) change from a year ago; Phoenix posts an online ADR of $123 following a (+3.4%) change from last year; and lastly, the most affordable popular destination in the country is San Antonio with an online ADR of $123 after a nil change from a year ago. With a median online ADR of $183 amongst the top-25 most popular U.S. destinations, Denver is the country's average affordable city to visit this May. Get the full story at Hospitality.Net