The most direct way to get to Bella Vista is to fly into North West Arkansas Regional Airport (XNA) located just outside of Bentonville, AR. It will show up as Fayetteville. Bella Vista is a 30 minute Uber ride from the airport.
XNA is a great little user-friendly airport. Five major airlines offer 40 nonstop flights to and from 18 major cities and hubs throughout the nation making travel convenient, fast, and inexpensive from just about anywhere.
Fly Allegiant, American, Delta, United, or Frontier all boast service to XNA.