A man has been airlifted to hospital in a critical condition after being hit by two cars while walking on the Warrego Highway in the Toowoomba region.

The 30-year-old victim was walking westbound on the highway between Jondaryan and Bowenville, about 60 kilometres north-west of Toowoomba.

The victim was airlifted to Brisbane with life-threatening injuries by the RACQ Lifeflight Rescue helicopter. Credit:RACQ LifeFlight Rescue

He was hit by two cars travelling west about 7pm on Friday and airlifted to the Princess Alexandra Hospital where he was left fighting for life.

The Forensic Crash Unit investigations were ongoing.