Ok re read

Right as you come to the J4 area stay in the left hand lane.
(J4 area is where it starts to say M6toll)

Stay left and get off at the A446
GO LEFT at the island
Follow the dual carriageway down to the next island under a fly over
3rd exit so you are now on the road above the island the A45
As you go up the slip road move into the middle of the 3 to join the A45
Now its easy look for the Airport signs.

Shings