U.S. Travel Booking Sites See Strong Summer Demand Posted on March 20, 2022 by Travel editor U.S. booking sites including Vrbo, Hopper and KAYAK are seeing higher demand for spring and summer leisure travel as COVID-19 restrictions ease and Post navigation Biden’s European trip will be heavy on displays of Western unity but could be light on actions to stop Putin’s Ukraine warUkraine war is backdrop in US push for hypersonic weapons