The 20-year-old reality TV star has been having strong feelings for Elgort, 21, since the two met on the set of a magazine photoshoot last winter, reported Aceshowbiz.
"Kendall's had the hots for Ansel all year and would date him in a heartbeat if he were interested. To her he's got it all - looks, ambition, connections and she digs the fact he's got a thriving DJ career as well as his acting," a source said.
However, Ansel is not single and is currently dating his high school friend Violetta Komyshan.