The shuttle from Main to D takes 7-8 minutes. It's route is basically unchanged - although it has to swing further west going around B because of construction.

The shuttle from Main C just started taking a much longer route. Like the D shuttle, it now goes around the hardstands at the west end of B and then comes all the way back to its normal dock at C17. I was on the C shuttle from C to Main this morning - it had to stop twice for planes being pushed back, and took almost 15 minutes for the trip.