Kayak Soothes Nervous Boeing Flyers With Airplane Search Filter

A Boeing 737 Max 8 flown by Southwest Airlines taxis to the gate at Baltimore Washington International Airport near Baltimore, Maryland on March 13, 2019. - US President Donald Trump on March 13, 2019, announced a plan to ground all Boeing 737 MAX aircraft amid intense international and political pressure following the second deadly crash in less than five months. "We're going to be issuing an emergency order of prohibition regarding all flights of the 737 MAX 8 and 737 MAX 9," Trump told reporters the White House. (Photo by Jim WATSON / AFP) Photo credit should read JIM WATSON/AFP/Getty Images

BENGALURU, India/OSLO, Norway—Travel website Kayak is making changes to let customers exclude specific aircraft types from searches, and booking sites are looking to reroute passengers, after an unexplained Boeing jet crash that killed 157 people in Ethiopia.

The first move by one of the big U.S. travel websites to adapt its service came as hundreds of jittery customers of Southwest, United, and American Airlines took to social media to seek flights on planes other than the Boeing 737 MAX, which was involved in the fatal crash on March 10.