Northwest Arkansas Regional Airport (XNA) is the closest airport. It is located about 30 miles from the University of Arkansas campus in Fayetteville. Due to logistical challenges, the conference committee will not able to provide shuttle service to and from the airport, but there are multiple taxi and car services.
See the complete list here: http://www.flyxna.com/getting-around/buses-shuttles-taxis/.
Rental cars are another option: http://www.flyxna.com/getting-around/rental-cars/.