Across the generations, Americans have an appetite to take the trips that matter to them, but it's Millennials who say they need to take the most trips â€" at least seven or more this year â€" to make themselves happy.

In fact, 83 percent of Millennials would rather take multiple short getaways over one long getaway this year, according to a new "Traveler's Sweet Spot" survey released today by priceline.com, a leader in online and mobile travel, and part of The Priceline Group.

Priceline.com's latest survey reveals Millennials want to travel more often, but miss out more than they would like and regret not going. In fact, 85 percent frequently regret when they're not able to travel.

Two in five Millennials most regret not traveling for experiences, such as music festivals (39%) and sporting events (35%).

Another 45 percent regret not traveling for their friends' important life moments, such as weddings, baby showers and bachelor or bachelorette parties, which hasn't always ended so well. One-third of Millennials report that they've lost a friendship over not taking a trip.

"For every trip, there's something on the line, whether it's friendship, family, or wellness," said Brigit Zimmerman, senior vice president of Air and Vacation Packages for priceline.com.

"Our research tells us the number-one reason that prevents consumers from traveling is cost and we offer thousands of hotel, flight and rental car deals daily, making it easier to get to important life events, on any device, and at the last minute."

The survey uncovered plenty of "triggers" to plan a spur-of-the-moment getaway this year. But, Millennials would be most willing to plan a spontaneous, short trip to visit friends and family (64%) â€" followed by seeking some "me" time (56%) and a romantic getaway (45%).