Trigger warning: If you're in desperate need of a vacation, you may want to stop here.
Americans are increasingly turning to smartphones to book travel, with more than 38 million expected to do just that in 2015.
That number is expected to continue to rise in the next few years, according to a study from eMarketer. More than half of American travelers that plan trips online in 2016 are projected to do so on smartphones, a number that is expected to hit 70% by 2019.
“Hotels, airlines, and online travel sites are better optimizing their websites for mobile bookings. As a result, people are finding a simpler and easier path to purchase and booking their trips right on their devices. This bodes well for the industry as a whole,” said Oscar Orozco, eMarketer forecasting analyst, in a press release.
That's translating to a big shift in how people are spending their hard-earned vacation budgets. Total sales of travel bought on desktops and laptops has declined as mobile-based revenue has increased, a trend that eMarketer expects to continue through 2019. Travel booked through smartphones is expected to hit $52.08 billion this year.
Travel, tourism and hospitality is a surprisingly large part of the U.S. economy, accounting for around $1.5 trillion in economic output in 2013 -- or 2.6% of the entire U.S. economy -- in 2012, according to the National Travel and Tourism Office.