It is believed that a woman in her mid-20s and her three children were travelling along a single lane road when the vehicle left the bitumen and rolled onto its side.
The Toowoomba-based helicopter crew was tasked to fly to the scene at 8.15am, where they worked with multiple emergency service crews to attend to the family.
The woman suffered suspected spinal injuries as a result of the crash – her son suffered head injuries.
Both patients were stabilised at the scene, and were flown to Toowoomba Hospital in the care of the CareFlight medical crew.
The cause of the accident is unknown.