From Elgin take the A941 south towards Rothes (signposted Perth) for about three miles, passing Benriach Distillery on your left. Take the road on the right, signposted Birnie. From Rothes and the south, take the A941 north towards Elgin. Pass the car sales garage at Fogwatt on your right, and shortly after the end of the 50 mph zone take the road on the left, signposted Birnie, just before the block of trees. Follow the Birnie road all the way to a T-junction. Turn left here and follow this road for half a mile until you come to the signpost on the left at the entrance to the airfield.
GPS co-ordinates of the airfield entrance : 57.586496, -3.321363
The below interactive map gives direction to the Airfield entrance from Elgin. Click this link for full screen.